A tumor is injected with 0.6
grams of Iodine-125, which has a decay rate of 1.15%
per day. Write an exponential model representing the amount of Iodine-125 remaining in the tumor after t
days. Then use the formula to find the amount of Iodine-125 that would remain in the tumor after 60
days.



Enter the exact answer.



Enclose arguments of functions in parentheses and include a multiplication sign between terms. For example, c*exp(h)
or c*ln(h)
.

Answers

Answer 1

Answer:

The exponential model representing the amount of Iodine-125 remaining in the tumor after t days would be:

Iodine-125(t) = 0.6 * e^(-0.0115t)

To find the amount of Iodine-125 that would remain in the tumor after 60 days, we would plug in t = 60 into the model:

Iodine-125(60) = 0.6 * e^(-0.0115(60))

= 0.6 * e^(-0.69)

= 0.6 * 0.5032

= 0.3019

So after 60 days, there would be approximately 0.3019 grams of Iodine-125 remaining in the tumor.

If I helped you, could you please make my answer best?


Related Questions

ASAP: ANSWER

Can someone solve the question in the picture?

Answers

The statements that complete the proof are:

QS || RT and ∠R ≅ ∠T∠Q ≅ ∠TΔQST ≅ ΔQSTΔQTS ≅ ΔTQR∠QTS ≅ ∠TQR

How to complete the statements in the proof

From the question, we have the following parameters that can be used in our computation:

The incomplete two-column proof

Given that

QS || RT and ∠R ≅ ∠T

We have

∠Q ≅ ∠T because alternate inerior angles are equal

By the reflexive property, we have

ΔQST ≅ ΔQST

This implies that

ΔQTS ≅ ΔTQR

Lastly, we have: ∠QTS ≅ ∠TQR

Read more about two column proof at

https://brainly.com/question/1788884

#SPJ1

Let V be the set of functions f : R 5 R. For any two functions f , g in V , define the sum f + g to be the function given by (f + g)(x) = f(x) + g(x) for all real numbers x. For any real number c and any function f in V , define scalar multiplication c f by (cf)x) = cf(x) for all real numbers x. Answer the following questions as partial verification that V is a vector space. (Addition is commutative:) Let f and g be any vectors in V . Then f(x) + g(x) = for all real numbers x since adding the real numbers f(x) and g(x) is a commutative operation. zero vector exists:) The zero vector in V is the function f given by f(x) = for all x_ (Additive inverses exist:) The additive inverse of the function f in V is a function g that satisfies f(x) + g(x) for all real numbers X. The additive inverse of f is the function g(x) for all x. (Scalar multiplication distributes over vector addition:) If c is any real number and and g are two vectors in V , then c(f + g)(x) = c(f(x) + g(x)) =

Answers

V is a set of functions that map from [tex]R^5[/tex] to R. It is a vector space because it has a commutative addition operation, a zero vector, additive inverses, scalar multiplication that distributes over vector addition, associativity of vector addition, a multiplicative identity for scalars, and a multiplicative inverse for non-zero scalars.

cf(x) + cg(x) for all real numbers x.

Associativity of vector addition: Let f, g, and h be any vectors in V. Then (f + g) + h = f + (g + h) for all real numbers x.

Existence of a multiplicative identity for scalars: The multiplicative identity for scalars in V is 1, such that for any vector f in V, 1f(x) = f(x) for all real numbers x.

Existence of a multiplicative inverse for nonzero scalars: For any nonzero real number c, there exists a multiplicative inverse 1/c such that c(1/c)f(x) = f(x) for all real numbers x and for any vector f in V.

All these properties are the standard conditions for a vector space, therefore V is a vector space.

To learn more about the functions at

https://brainly.com/question/12431044?referrer=searchResults

#SPJ4

2a^(3) -4a^( 2)-6a-1-4a^( 3)+6a^( 2)-11a-3

Answers

This equation can be resolved by simplifying it appropriately. Solve it by combining like terms.

To solve this problem

2a^(3) -4a^( 2)-6a-1-4a^( 3)+6a^( 2)-11a-3

Firstly, take away the ones that are 1 and 3 from it.

2a^(3) -4a^( 2)-6a-4a^( 3)+6a^( 2)-11a-4

Then combine like terms

2a^(3) -4a^( 2)-6a-4a^( 3)+6a^( 2)-11a-4

-2a^(3) -4a^( 2)-6a+6a^( 2)-11a-4

Then mix related terms owing a^(2)

-2a^(3) -4a^( 2)-6a+6a^( 2)-11a-4

-2a^(3) +2a^( 2)-6a-11a-4

Combine like terms having ( a )

-2a^(3) +2a^( 2)-6a-11a-4

-2a^(3) +2a^( 2)-17a-4

Consequently, the answer to this issue is

-2a^(3) +2a^( 2)-17a-4

Learn more about solving equations here :

https://brainly.com/question/22688504

Use traces to sketch the surface. (If an answer does not exist, enter DNE. Select Update Graph to see your response plotted on the screen. Select the Submit button to grade your response.)
y = 3z2 − 3x2
(Write an equation for the cross section at z = −1
using x and y.)
(Write an equation for the cross section at z = 0
using x and y.)
(Write an equation for the cross section at z = 1
using x and y.)
(Write an equation for the cross section at y = −1
using x and z.)
(Write an equation for the cross section at y = 0
using x and z.)
(Write an equation for the cross section at y = 1
using x and z.)
(Write an equation for the cross section at x = −1
using y and z.)
(Write an equation for the cross section at x = 0
using y and z.)
(Write an equation for the cross section at x = 1
using y and z.)

Answers

Answer:

Cross section at z = -1: y = 3(-1)^2 - 3x^2 = -3x^2

Cross section at z = 0: y = 3(0)^2 - 3x^2 = -3x^2

Cross section at z = 1: y = 3(1)^2 - 3x^2 = -3x^2

Cross section at y = -1: x^2 = (3z^2+1)/3; x = sqrt((3z^2+1)/3) or x = -sqrt((3z^2+1)/3)

Cross section at y = 0: x = 0;

Cross section at y = 1: x^2 = (3z^2-1)/3; x = sqrt((3z^2-1)/3) or x = -sqrt((3z^2-1)/3)

Cross section at x = -1: z^2 = (3y+1)/3; z = sqrt((3y+1)/3) or z = -sqrt((3y+1)/3)

Cross section at x = 0: z = 0;

Cross section at x = 1: z^2 = (3y-1)/3; z = sqrt((3y-1)/3) or z = -sqrt((3y-1)/3)

Step-by-step explanation:

square root equation need answer asap

Answers

R = 28
Step 1: rewrite
Step 2 : remove radicals
Step 3: simplify each side

Step-by-Step Explanation

[tex]5 = \sqrt{r - 3} \\ = > (5) ^{2} = {( \sqrt{r - 3)} }^{2} \\ = > 25 = r - 3 \\ = > r = 25 + 3 = 28[/tex]

Answer

r = 28

Hope it helps.

If you have any query, feel free to ask.

what is the radius,diameter, ad circumference of the area of a circle that is 2289.1ft squared long​

Answers

For the given Circumference, the radius of the circle is 364.50 feet, and diameter is 729 feet.

The circumference of a circle or ellipse in geometry is its perimeter. That is, if the circle were opened up and straightened out to a line segment, the circumference would be the length of the arc. The curve length around any closed figure is more often referred to as the perimeter.

How do you figure out a circle's radius and area?

A circle's circumference is equal to two times its radius or diameter, where r is the radius and d is the diameter. Where r is the circle's radius, the area of a circle is equal to πr2

The Circumference of the circle is 2289.1 sq. feet,

Circumference = 2πr

2289.1 = 2 π r

⇒ 2289.1 = 2 × 3.14 × r

⇒ r = 2289.1 / 6.28

r = 364.50

We know, Diameter = 2 × Radius

Diameter = 2 × 364.50 = 729

To learn more about Circumference from given link

https://brainly.com/question/27447563

#SPJ1

show that the medians of the triangle with (non-colinear) vertices (a1, a2, a3) intersect at a1 a2 a3 3

Answers

The medians of a triangle connect the midpoints of each side and intersect at the centroid of the triangle.

Medians of a triangle are lines that connect the midpoints of each side of the triangle to the opposite vertex. This means that they divide the triangle into two halves, each with an area that is equal to half of the area of the entire triangle. The medians of a triangle with vertices (a1, a2, a3) intersect at a point known as the centroid of the triangle, which is located at the intersection of the three medians. The centroid can be found by taking the average of the three vertices, or by finding the intersection of the three medians. The centroid is the point at which the three medians of the triangle intersect and is the center of gravity for the triangle. In other words, it is the point that all three medians will intersect at.

Learn more about median here

https://brainly.com/question/28060453

#SPJ4

Use Lagrange multipliers to find the maximum and minimum values of the function subject to the given constraint. (If an answer does not exist, enter DNE.)f(x, y) = y2 − x2; 1/4x2 + y2 = 64

Answers

The maximum and minimum value of the function subject to the given constraint is f(0,0) = 0.

What are Lagrange multipliers?

Lagrange's multiplier is a mathematical technique used to find the maximum or minimum value of a function subject to certain constraints. It is named after Joseph-Louis Lagrange, who first introduced the method in the 18th century.

To use Lagrange multipliers to find the maximum and minimum values of the function f(x, y) = y^2 - x^2 subject to the constraint 1/4x^2 + y^2 = 64, we need to first set up the Lagrange function:

L(x, y, λ) = y^2 - x^2 + λ(1/4x^2 + y^2 - 64)

We then find the partial derivatives of L with respect to x, y and λ:

∂L/∂x = -2x + λ(1/2x) = 0

∂L/∂y = 2y + λ(y) = 0

∂L/∂λ = 1/4x^2 + y^2 - 64 = 0

Solving these equations, we find the following solutions:

x = 0, y = 0, λ = -8

x = 8√2, y = 8√2, λ = 4

x = -8√2, y = -8√2, λ = 4

Now, we need to check these solutions to see if they satisfy the constraint 1/4x^2 + y^2 = 64. Only the first solution x = 0, y = 0 satisfies the constraint.

Hence, the maximum and minimum value of the function subject to the given constraint is f(0,0) = 0.

To learn more about the Lagrange multiplier, visit:

https://brainly.com/question/4609414

#SPJ4

Factor this:
(will mark the brainliest

Answers

Answer: [tex]a^{n}(n^{2}+n+1)[/tex]

Step-by-step explanation:

Since the equation a^n+a^n+1+a^n+2

= a^n+n*a^n+n^2*a^n

= a^n*(n^2+n+1)

Answer:

[tex] {a}^{n} ( {a}^{2} + a + 1)[/tex]

Step-by-step explanation:

Remember exponent product rule: [tex]a^{n+m}=a^n*a^m[/tex]

Rewritten: [tex]{a}^{n} + ( {a}^{n}* {a}^{1}) + ({a}^{n} * {a}^{2})[/tex]

factor the common factor [tex] {a}^{n} [/tex] to get

[tex] {a}^{n} (1 + a + {a}^{2} )[/tex]

reorder from highest exponent to get answer.

Karl was attempting to calculate economic figures. He found the following equation to be true:fp-w=10000If f=5 and w=5+125i, what is p?

Answers

The value of p = (125i + 10005)/5

=> p = 25i + 2001

Now, According to the question:

Let's know:

In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

Karl was attempting to calculate economic figures.

The given equation is:

fp - w = 10000

f = 5 and w = 5 + 125i

To solve for the value of p.

(-125i - 5) + 5 p = 10000

Add 5 + 125i to both sides:

5 p + ((-125 i - 5) + 125 i + 5) = 125 i + 5 + 10000

(-125 i - 5) + (125 i + 5) = 0:

5 p = 10000 + 5 + 125 i

10000 + 5 + 125 i = (10000 + 5) + 125 i = 10005 + 125 i:

5 p = 125 i + 10005

Divide both sides of 5 p = 125 i + 10005 by 5:

(5 p)/5 = (125 i + 10005)/5

p = (125i + 10005)/5

Hence, The value of p = (125i + 10005)/5.

Learn more about Equation at:

https://brainly.com/question/13108644

#SPJ4

Plsssss help number one and two!!!!!!!

Answers

According to the Pythagorean Theorem 1. b = 122. a = 1/4 for more detail scroll down.

What is the Pythagorean Theorem?

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. The theorem can be written as an equation: c^2 = a^2 + b^2, where c is the length of the hypotenuse and a and b are the lengths of the other two sides.

1. To use the Pythagorean theorem to find the length of side b, you can use the equation: c^2 = a^2 + b^2. In this case, c = 15 and a = 9, so you can substitute those values into the equation and solve for b:

15^2 = 9^2 + b^2

225 = 81 + b^2

b^2 = 225 - 81

b^2 = 144

b = sqrt(144)

b = 12

2. In the second case a is unknown and the other two sides are in fraction form, so we can use Pythagorean theorem to find the value of a.

The equation is c^2 = a^2 + b^2

(5/12)^2 = a^2 + (4/12)^2

25/144 = a^2 + 16/144

a^2 = 9/144

a = sqrt(9/144)

a = sqrt(1/16)

a = 1/4

To learn more about Pythagorean theorem Visit :

brainly.com/question/343682

#SPJ1

There were seven serving lines at the
annual pancake breakfast. The total
number of people served at each of
the seven lines were 126, 118, 127, 134,
98, 132, and 121. What was the median
number of people served?

Answers

Answer: 126

Step-by-step explanation: Given that the median is the middle number in a sorted, ascending, or descending list of numbers and can be more descriptive of that data set than the average. We know that we need to put the numbers in order from greatest to least or least to greatest first.

Step 1: Ordering the numbers (from least to greatest)

98,118,121,126,127,132,134

Step 2: Finding the value in the middle

98,118,121,  126  ,127,132,134

We now know that 126 is the median number of people served.

Answer: 126 is the median number of people served.

Step-by-step explanation:

The median is found by arranging the data points in a set from lowest to greatest. Once this is done, if there are an odd number of data points, simply find the number in the middle. If there is an even number, find the average of the two middle numbers. Here, you would arrange the numbers as such, 98,118,121,126,127,132,134. Once this is done, since there are seven lines (an odd number of data points, therefore), figure out which number is in the middle, and here it is 126. Hence, the median is 126 (people)

Answer all 3 as soon as any can

Answers

The domain of the expression is all real numbers except where the expression is undefined.

How do you find the domain and range?

In order to identify the values of the independent variable x and acquire the domain, we simply solve the equation y = f(x). Simply put, x=g(y) will calculate the function's range after we identify g's domain (y).

Mathematical procedures are comparable to those of a soda vending machine. You can choose from a variety of sodas after you deposit a particular sum of money.

Similar to how we enter different numbers into functions, we also receive new numbers as the outcome. The two essential characteristics of functions are domain and range. A soda can be purchased using quarters and one dollar bills. If pennies are put into the machine, no soda flavour will be provided.

To learn more about domain and range refer to  :

https://brainly.com/question/2264373

#SPJ1

Which of the following tables represents a proportional relationship between x and y?

Answers

The numbers in table are in proportion. Therefore, option B is the correct answer.

What is a proportional relationship?

Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is known as the "constant of proportionality".

Here,

From the table A:

1/5 = 3/15 = 5/20 = 7/28

1/5 = 1/5 ≠ 1/4 = 1/4

Here, numbers are not in proportion.

From the table B:

3/9 = 5/15 = 7/21 = 8/24

1/3 = 1/3 = 1/3 = 1/3

The numbers are in proportion.

From the table C:

4/12 = 6/18 = 7/28 = 9/36

1/3 = 1/3 ≠ 1/4 ≠ 1/4

The numbers are not in proportion.

From the table D:

2/8 = 3/12 = 4/16 = 5/30

1/4 = 1/4 = 1/4 ≠ 1/6

The numbers are not in proportion.

Therefore, option B is the correct answer.

To learn more about the proportional relationship visit:

brainly.com/question/12917806.

#SPJ1

For a system to be closed under an operation, and when any two elements in the system are combined using the operation, the result must still be an element of that system. For instance, when any two natural numbers (1, 2, 3, . . .), are added together, the result will always be a natural number. When answering the following questions, consider the system of all polynomial equations and the system of all rational equations.

Part A
Which systems are closed under addition? If either system is not closed under addition, provide a counterexample
Part B
Which systems are closed under subtraction? If either system is not closed under subtraction, provide a counterexample.
Part C
Which systems are closed under multiplication? If either system is not closed under multiplication, provide a counterexample.
Part D
Which systems are closed under division? If either system is not closed under division, provide a counterexample.
Part E
Based on which operations the system of polynomial equations is closed under, which system of numbers is most similar to the system of polynomial equations? Explain your answer, and provide any needed counterexamples.
Part F
Based on which operations the system of rational equations is closed under, which system of numbers is most similar to the system of rational equations? Explain your answer, and provide any needed counterexample

Answers

The answers to all parts is shown below.

What are Numbers?

An arithmetic value used to indicate amount is called a number. A number is a mathematical concept that is used for counting, measuring, and labelling. Thus, mathematics is built on numbers.

1. Real numbers are "closed" under addition Integers are "not closed" under division. Irrational numbers are "not closed" under multiplication. Rational numbers are "closed" under subtraction.

2. Rational numbers are "closed" under subtraction. If an operation is closed under a set of numbers that means that the result of the operation will always be within that same set of numbers.

3. The  closure property of multiplication holds for natural numbers, whole numbers, integers and rational numbers.

4. Rational numbers are closed under division as long as the division is not by zero. Irrational numbers are not closed under addition, subtraction, multiplication or division.

5. The whole number system and the polynomial system are nearly identical. Actually, there are not many differences between polynomial functions and our whole number system. We employ a base-10 (decimal) approach for counting. The above-mentioned polynomial is an example of a "base x" system.

6. The system of polynomials is almost the same with the system of whole numbers.

Learn more about Number here:

https://brainly.com/question/4262258

#SPJ1

what is the value of -6 ^ 3​

Answers

Answer:

-216

Step-by-step explanation:

[tex]-6^3\\-6*-6*-6 = -216[/tex]

Your answer would be -216

Find the recursive formula for the geometric sequence. Then find a5,
2, 14, 98, 686, ...
A) an = an - 1 . 7; 33,614
B) an = an - 1 . 7; 693
C) an = an - 1 . 7; 4,802
D) an = an - 1 . 7; 98

Answers

an = an - 1 . 7; 4,802 is the recursive formula for the geometric sequence.

What exactly is a geometric series?

A geometric sequence is a set of integers that follows a pattern where each term is multiplied by a fixed number called the common ratio, or r, to find the following term.

                             2, 4, 8, 16, 32, 64,..., which has a common ratio of 2, is an illustration of a geometric sequence.

2, 14, 98, 686, ...

as shown in total

2 * 7 = 14             14 * 7 = 98          98 * 7 =   686

So   aₙ = aₙ₋¹

     a₅   =   a₄  . 7

           =    686  . 7  =  4802

Learn more about the geometric sequence.

brainly.com/question/12687794

#SPJ4

     

greatest common factor of 12 and 60

Answers

Answer:

12

Step-by-step explanation:

There are 6 common factors of 12 and 60, that are 1, 2, 3, 4, 6, and 12. Therefore, the greatest common factor of 12 and 60 is 12.

HELPPPP I NEED HELP!!!!

Answers

Answer:

مرتم باشگاه ورزشی خیلی علاقه داشتم خیلی قشنگ بی که خیلی تخفیف فایل که خیلی خوعه بچه آخر بی

Answer:
After four bites, Alice would be 256 inches tall.

An exponential function that models this growth would be f (x) = 64.22 where x is the number of bites she takes.

If Alice doesn't take any bites (zero bites), her height would be 64 inches.

are true statements.

If Alice takes two bites, she will be 256 inches tall. is false and After three bites, Alice would be 192 inches tall is also false.

hite at
Examine the linear graph. Determine
the y-intercept and write it as an
ordered pair.
180-
160-
140-
120-
100-
80
60
40-
20
-10%
(42, 148)
10 20 30 40 50 60 70

Answers

The y-intercept of the given line is 100.

What is the y-intercept?

The y-intercept is the point at which the line crosses the y-axis, which occurs when x = 0. To find the y-intercept, we can plug in x = 0 into the equation of the line.

We can write the equation of the line in the form y = mx + b, where m is the slope of the line and b is the y-intercept.

We can find the slope m using the point slope formula:

m = (y2 - y1) / (x2 - x1) = (148-100)/(42-0) = 48/42 = 4/3

Now we can substitute the point (0,100) into the equation of the line:

y = (4/3)x + b

100 = (4/3) * 0 + b

b = 100

So the y-intercept is (0,100)

Hence, the y-intercept of the given line is 100.

To learn more about the y-intercept, visit:

https://brainly.com/question/10606087

#SPJ1

melissa is younger than natalie and is older and shorter than jason. natalie is taller and younger than ken, but ken is taller than jason. list the ages of the four people in order, starting with the oldest. list the heights of the four people in order, starting with the tallest.

Answers

Ages in order starting with the oldest : ken , natalie , melissa ,  jason.

Heights in order starting with the tallest : natalie, ken , jason , melissa.

by descending order.

From the information given in the question :

natalie (N) is older than melissa (M)

melissa (M) is older than jason (J)

ken (K) is older than natalie (N)

So , similarly ken is the oldest among those 4. and then order follows as natalie older than melissa older than jason.

                        K>N>M>J

jason (J) is taller than melissa (M)

natali (N) is taller than ken (K)

ken (K) is taller than jason (J)

So, similarly natali is the tallest among all 4, and then order follows as

ken taller than jason taller than melissa.

                        N>K>J>M

learn more about the descending order here :

https://brainly.com/question/23938305

#SPJ4

which of the following is the taylor series centered at \(\displaystyle 0\) for \(\displaystyle e^x\)?

Answers

ex=1+x2+x3/2!+x4/3!  is the Taylor series centered.

The function itself evaluated at a = 0 as well as the first three derivatives are therefore required to determine the first four terms using this formula (because the 0t h derivative equals the function itself).

The fourth derivative can be used to determine the next term as the fourth derivative is required to obtain four non-zero terms using this function and the 0th term is zero. This is likely why the first four derivatives were chosen.

f(0)=0(e0)=0

ex=1+x+x2/2!+x3/3!

ex=x(1+x+x2/2!+x3/3!)

ex=1+x2+x3/2!+x4/3!

Know more about the Taylor series

https://brainly.com/question/28168045

#SPJ4

Use technology to find the surface area S of the surface generated when the plane curve defined by the equations æ(t) = = -6e-t, y(t) = 7e-t, on the interval 1

Answers

The surface area S is given by the definite integral of the function :

|r(t) X r'(t)| over the interval [1], which can be approximated by numerical integration methods.

To find the surface area of the surface generated by the given equations, we need to first find the cross-sectional area of the surface at every point of t and then integrate it over the interval. To do this, we need to find the vector r(t) = (x(t),y(t)) and its derivative r'(t) = (x'(t),y'(t)) which gives the tangent vector to the curve at t. The cross-sectional area of the surface at t is given by the magnitude of the vector cross product of the vectors r(t) and r'(t) and is written as |r(t) X r'(t)|. Then the surface area S is given by the definite integral of this cross-sectional area over the interval [1].

The definite integral can be solved analytically or numerically, however, the final answer would be the integration of the function |r(t) X r'(t)| over the interval [1], which is not possible to solve analytically, so we use numerical integration methods.


Read more about Calculus:

https://brainly.com/question/29200987


#SPJ4

Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2, and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's profits last month, where x is the number of sandwich lunch specials sold and y is the number of wrap lunch specials sold. Describe how you would graph this line using the slope-intercept method. Be sure to write using complete sentences. Write the equation in function notation. Explain what the graph of the function represents. Be sure to use complete sentences. Graph the function. On the graph, make sure to label the intercepts. You may graph your equation by hand on a piece of paper and scan your work or you may use graphing technology. Suppose Sal's total profit on lunch specials for the next month is $1,593. The profit amounts are the same: $2 for each sandwich and $3 for each wrap. In a paragraph of at least three complete sentences, explain how the graphs of the functions for the two months are similar and how they are different.

Answers

Answer:

2x+3y=1470

Step-by-step explanation:

What is the answer for these expressions

Answers

Answer:

a.7a-ab+b

=7×3-3×5+5

=21-15+5

=11

b.10a÷(2b)

=10×3÷(2×5)

=30÷10

=3

C.4ab-6b+5a

=4×3×5-6×5+5×3

=60-30+15

=45

*Mark me brainliest

A project should take no more than 60 hours. If John can spare 7.5 hours per day to work on the project, what is the maximum number of days it will take him to finish

Answers

Answer:

8 days

Step-by-step explanation:

We know

A project should take no more than 60 hours, which means the number of hours should [tex]\leq[/tex] 60 hours.

John can spare 7.5 hours per day to work on the project.

Let x represent the number of days; we have the equation

7.5x [tex]\leq[/tex] 60

x [tex]\leq[/tex] 8

So, the maximum number of days it will take him to finish is 8 days.

PLEASE HELP
For the three-part question that follows, provide your answer to each part in the given workspace. Identify each part with a coordinating response. Be sure to clearly label each part of your response as Part A, Part B, and Part C.

Use the equation -10 + 6( h - 8 ) = -4( 2h + 3 ) to answer Parts A, B, and C below.

Part A: What property can be used to eliminate the parentheses in the equation?

Part B: Solve the equation. Show all work.

Part C: Verify the solution. Show all work.

Answers

The distributive property is used eliminate the parentheses in the equation and the solution of the equation is not correct.

What property can be used in the equation?

Part A: The distributive property can be used to eliminate the parentheses in the equation.

Part B: Using the distributive property, we get:

-10 + 6h - 48 = -8h - 12

6h + 8h = 48 + 10 -12

14h = 70

Now we divide both sides by 14:

h = 70/14

h = 5

Part C: To verify the solution, we can substitute 5 back into the original equation and see if both sides are equal.

-10 + 6(5 - 8) = -4(2(5) + 3)

-10 + 6(-3) = -4(10 + 3)

-10 - 18 = -4(13)

-28 = -52

Thus, the solution is not correct.

Learn more about distributive property on:

https://brainly.com/question/2807928

#SPJ1

Answer:

Part A: The distributive property can be used to eliminate the parentheses in the equation.

Part B: Using the distributive property, we get:

-10 + 6h - 48 = -8h - 12

6h + 8h = 48 + 10 -12

14h = 70

Now we divide both sides by 14:

h = 70/14

h = 5

Part C: To verify the solution, we can substitute 5 back into the original equation and see if both sides are equal.

-10 + 6(5 - 8) = -4(2(5) + 3)

-10 + 6(-3) = -4(10 + 3)

-10 - 18 = -4(13)

-28 = -52

Thus, the solution is not correct.

Step-by-step explanation:

Vita wants to center a towel bar on her door that is 27 inches wide.
end of the door is 9 inches. Write and solve an equation to find the length
She determines that the distance from each end of the towel bar to the
of the towel bar.

Answers

The length of the towel bar is 9.5 inches.

How to solve the equation?

Length is used to measure distance, In the International System of Quantities, a quantity with the distance dimension is referred to as length. The majority of measurement systems select a base unit for length from which all other units are derived. The metre serves as the International System of Units' fundamental unit of length.

Suppose, the length of the towel bar is x inches

The distance from each end of the towel bar to the end of the door is 9

inches. So, the total width of the door will be:[(x+(9*2)]=(x+18) inches

Given that, the width of the door is 27 inches 27.5 So, the equation will be.

x+18=27.5

x=27.5-18=9.5

Thus, the length of the towel bar will be 9.5 inches.

To learn more about length refers to;

brainly.com/question/9032191

#SPJ1

consider the tetrahedron with base being the triangle with vertices (0,0), (1,0) and (0,1). the fourth vertex lies above the point (0,0) at height 1. see the picture below a tetrahedron as described in the problem setup an integral the represents the volume of the tetrahedron then evaluate it.

Answers

The volume of the tetrahedron with base being the triangle with vertices (0,0), (1,0) and (0,1) and fourth vertex lying above the point (0,0) at height 1 can be found by evaluating the triple integral $\int_0^1 \int_0^{1-x} \int_0^{1-x-y} 1\,dz\,dy\,dx$, which evaluates to $\frac{1}{6}$. Therefore, the volume of the tetrahedron is $\frac{1}{6}$.

The integral that represents the volume of the tetrahedron is given by:

$$\int_0^1 \int_0^{1-x} \int_0^{1-x-y} 1\,dz\,dy\,dx$$

Evaluating the integral, we get:

$$\int_0^1 \int_0^{1-x} \int_0^{1-x-y} 1\,dz\,dy\,dx = \int_0^1 \int_0^{1-x} (1-x-y)\,dy\,dx = \int_0^1 \frac{1}{2} (1-x)^2\,dx = \frac{1}{6}$$

Therefore, the volume of the tetrahedron is $\frac{1}{6}$.

We first set up the integral that represents the volume of the tetrahedron. The integral is a triple integral, so it can be written as $\int_0^1 \int_0^{1-x} \int_0^{1-x-y} 1\,dz\,dy\,dx$. This integral is the volume of a 3-dimensional region enclosed by the limits $x \in [0,1]$, $y \in [0,1-x]$, and $z \in [0,1-x-y]$. This region is exactly the same as the volume of the tetrahedron because it is the same 3-dimensional region.

Next, we evaluate the integral. First, we integrate with respect to $z$, which gives us $\int_0^1 \int_0^{1-x} (1-x-y)\,dy\,dx$. Then, we integrate with respect to $y$, which gives us $\int_0^1 \frac{1}{2} (1-x)^2\,dx$. Finally, we integrate with respect to $x$, which gives us $\frac{1}{6}$. Therefore, the volume of the tetrahedron is $\frac{1}{6}$.

The volume of the tetrahedron with base being the triangle with vertices (0,0), (1,0) and (0,1) and fourth vertex lying above the point (0,0) at height 1 can be found by evaluating the triple integral $\int_0^1 \int_0^{1-x} \int_0^{1-x-y} 1\,dz\,dy\,dx$, which evaluates to $\frac{1}{6}$. Therefore, the volume of the tetrahedron is $\frac{1}{6}$.

Learn more about volume here

https://brainly.com/question/16134180

#SPJ4

List all the vertices, edges, and faces in the figure below.

Answers

The 3 dimensional figure has 6 vertices , 9 edges and 5 faces.

What Are Vertices, Faces And Edges?

Vertices in shapes are the points where two or more line segments or edges meet (like a corner). Edges are the line segments that join one vertex to another and are also where the shape’s faces meet. Faces are the flat surface of a solid shape.

Given here: A figure with 3 rectangular faces and 2 triangular faces.

We know, Vertices are the corners of the three-dimensional shape, where the edges meet. Faces are flat surfaces and edges are the lines where two faces meet.

The vertices of the figure are A,B,C,D,E,F And edges as AB,BC,CF,FA,EB,DC,AE,FD,ED

And the faces are as follows

rectangular faces- AFDE, ABCF, EDCB

Triangular faces- EAB, DFC

Hence, The 3 dimensional figure has 6 vertices , 9 edges and 5 faces.

Learn more about a rectangle here:

https://brainly.com/question/20693059

#SPJ1

Other Questions
Why do you think body composition focuses on the ratio of fatty tissue to other body tissue? why is body composition not related to weight? which do you feel is a more accurate representation of a person's health? explain your reasoning. Wally want to determine the height of a tatue that cat a 164-inch hadow by comparing it to hi own height and hadow length. If Wally, who i 69 inche tall, cat a hadow that i 41 inche in length, what i the height of the tatue? A. 276 inche B. 300 inche C. 97 inche D. 252 inche 29. Higher Order Thinking If thenumerator and denominator of a fractionare both odd numbers, can you writean equivalent fraction with a smallernumerator and denominator? Give anexample to explain. When a customer buys a family-sized meal at a certain restaurant, they get to choose 3 side dishes from 9 options. Suppose a customer is going to choose 3 different side dishes.How many groups of 3 different side dishes are possible? Convert 25 dollars to dimes 150g of 80% pure ZnCO3 is completely reacted with excess HCI to produce ZnCl2, CO, and HO. i. Which one is limiting reactant? ii. Calculate the mass of ZnCl formed? iii. How many molecules of water are produced? iv. What volume of CO2 are produced if the reaction is carried out at 27C and 760 mm of Hg pressure? stimulates cells to break down glycogen into glucose What is the value of X based on the income statement belowe, how much net operating profit after taxes (nopat) does the firm have? sales $2,000.00 costs 1,200.00 depreciation 100.00 ebit $ 700.00 interest expense 200.00 ebt $ 500.00 taxes (35%) 175.00 net income $ 325.00 group of answer choices $390.11 $370.60 $455.00 $410.64 Change into passiveWe are doing nothing Which of the following was the main interest of the Social Gospel movement?answer choicesreligious reformpolitical reformsocial reformeconomic reform Two lines that make right angles at their intersection are? Anaconda is an installation program that's used by Fedora, RHEL, and other distributions. Which of the following does Anaconda perform? (Select 3.)Choose matching termA.Identifies the computer's hardware.Creates a file systemProvides a user interface with guided installation steps.B.Provides a single file that archives all the files that make up an OVF using TAR.C. Container imageD. virsh refers to the state of being part insider and part outsider in the social structure, such as that of immigrants who simultaneously share the life and traditions of two distinct groups. group of answer choices anomie social marginality stigmatization alienation Vincent makes handcrafted dining tables, and he is trying to decide how many tables to produce. He can sell each dining table for $1,000. The cost of the first table is $900, for the second it's $1,100. For each additional table he produces, the marginal cost of each table increases by $200. How many dining tables should Vincent produce, and what is the total cost of his production? The assassination of Archduke Franz Ferdinand started World War I because:A) Sarajevo was an international city with French, British, and Russian zones.B) he was a British envoy to the Ottoman Empire.C) the Black Hand had groups all over Europe.D) Serbia was backed by Russia and Austria-Hungary was backed by Germany. HELP ASPP PLEASE AND THANK YOU help me please or i get pizdy there are three sets of sketches below, showing the same pure molecular compound (hydrogen chloride, molecular formula ) at three different temperatures. the sketches are drawn as if a sample of hydrogen chloride were under a microscope so powerful that individual atoms could be seen. only one sketch in each set is correct. use the slider to choose the correct sketch in each set. you may need the following information: melting point of : boiling point of : What is the magnitude of vector AxB?.