You are solving a measurement problem where the numbers 5.2187 x 10−3, 2.05 x 107, and 3.40 x 103 are multiplied. How many significant digits should the product have?

Answers

Answer 1

Answer:

3 because you always know your answer by the smalest number which has a digit of 3

Step-by-step explanation:


Related Questions

If each student in the class drinks
1 cups of juice during the party
and there are 9 students in the
class, how many cups of juice will
be needed?

Answers

Answer:9

Step-by-step explanation:

9 cups of juice because 9 students x 1 cup that they drink=9

whats the slope for (-6,-3) and (0, -1.5) in fraction form?

Answers

The slope of the line segment joining the two points given (-6,-3) and (0, -1.5) expressed in fraction form as required in the task content is; m = 1/4.

What is the slope of the line segment joining the two points given (-6,-3) and (0, -1.5) as required in the task content?

It follows from the task content that the slope of the line segment joining the two points given (-6,-3) and (0, -1.5) be determined.

On this note, it follows from the slope formula that slope;

m = (y2 - y1)/(x2 - x1)

Therefore, the slope of the line segment joining the two points is;

m = (-1.5 - (-3))/(0 - (-6))

m = 1.5/6

m = 1/4.

Ultimately, the slope of the line segment joining the two points given (-6,-3) and (0, -1.5) expressed in fraction form as required in the task content is; m = 1/4.

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Find the measure of each numbered angle. (Lesson 4-2)

m ∠ 6

Answers

The measurement of angle ∠2 is 67.50°.

What exactly do we mean by an angle?In Euclidean geometry, an angle is a figure formed by two rays called the sides of the angle that share a common endpoint called the vertex of the angle.Angles formed by two rays are located in the plane in which the rays are located.When two planes intersect, angles are formed.These are referred to as dihedral angles.

So,

An octagon has 8 sides.Sum of interior angles = 180° x (n-2) = 180° x (8-2) = 180° x 6 = 1,080°1,080° ÷ 8 sides = 135° interior angle.Angle 2 = 135° / 2 = 67.50°

Therefore, ∠2 is 67.50°.

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The correct question is given below:

Given the regular polygon, find the measure of each numbered angle.

m ∠ 2


Simplify by combining like terms. -(3 z-5)+z

Answers

The simplification by combining like terms of -(3z -5) + z is -2z + 5.

According to the given question.

We have an expression -(3z -5) + z.

As we know that, like terms are terms whose variables (and their exponents such as the 2 in x2) are the same.  when we combine like terms, such as 2x and 3x, we add or subtract their coefficients.

Since, we have to combine the like terms of the given expression -(3z - 5)  +z.

Here -3z and z both are the like terms.

So, we subtract coeffcients of z to simplify the given expression.

Therefore, the simplification of the expression -(3z - 5)  +z is given by

-(3z - 5) + z

= -3z + 5 + z

= -3z + z + 5

= -2z + 5

Hence, the simplification by combining like terms of -(3z - 5) + z is -2z + 5.

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Write an algebraic expression that models each situation.
The piggy bank contained 25 , and 1.50 is added each day.

Answers

The algebraic expression of the piggy bank contained $25 and $1.50 is added each days is 25+1.50x

Given,

The piggy bank contained = $25

The amount added in each day = $1.50

Consider number of days as x

Then the algebraic expression = 25+1.50x

Hence, the algebraic expression of the piggy bank contained $25 and $1.50 is added each days is 25+1.50x

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Draw a line representing the rise and representing the run of the line. State the slope of the line in simplest form.

Answers

The slope is -2/3 rise/run

name all the sets of numbers to which each real number belongs.

1. 12
2. -15
3. 1 1/2
4. 3.18
5. square root 48
6. 9.3
7. -2 7/9
8. square root 25
9. square root 3
10. negative square root 64
11. negative square root 12
12. 8/4

Answers

These are the description of the real numbers.

According to the statement

We have to explain all about the real numbers.

So, For this purpose, we know that the

Positive or negative, large or small, whole numbers, fractions or decimal numbers are all Real Numbers.

From the given information:

Real numbers are composed of the subsequent set of numbers : Whole numbers, natural numbers, integers, rational numbers and irrational numbers.

• Natural numbers include all positive numbers which can be used for ordering or counting. They include numbers from 1, till infinity.

• Whole numbers include all positive integer values including 0.

• Integer numbers are the set of all positive and negative integer values including 0. Examples are : (-1, 0, 8)

• Irrational numbers are non-integer values which can't be expressed within the form a/b. like (√5, 1.7171...)

Using the definitions above :

• 12 = Natural, integer , integer and rational (12/1)

• -15 = Integer, rational (-15/1)

• 1 1/2 = 3/2 = Rational

• 3.18 = rational (terminating decimal)

• root 48 = √48 = 6.928... = irrational(non-terminating and non-repeating)

• 9.3 = rational (terminating decimal)

• -2 7/9 = -25/9 = rational (a/b)

• root 25 = √25 = ±5 = integer, rational (5/1)

• root 3 = √3 = 1.732... real (non-terminating and non-repeating) .

• negative root 64 = - √64 = - 8 = integer, rational (-8/1)

• negative root 12 = - √12 = - 3.464... = irrational (non - terminating)

• 8/4 = 2 = natural, number, rational, integer

So, These are the description of the real numbers.

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5
y≥--x-3
2

how do i graph this?

Answers

The given inequality can be graphed by solving the inequation first.

What is an inequality?

Inequality is defined as an equation that lacks an equal sign. Inequality is a phrase that defines the relative magnitude of a statement and may be used to compare these two statements.

The given inequality can be solved as

[tex]5y\geq -x-32[/tex]

[tex]for, x=1, 5y\geq -1-32[/tex]

[tex]or, 5y\geq -33[/tex]

[tex]or, y=\frac{33}{5}[/tex]

Solve for two more values of x and then plot the inequality on the graph

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A meeting room is set up with 16 rows of seats. The number of seats in a row increases by two with each successive row. The first row has 12 seats. What is the total number of seats?
a. How can you find the number of seats in each row using an explicit formula?

Answers

The most commonly used explicit of an arithmetic sequence is given as,

an = a + (n - 1) d

Each term in the sequence can easily be solved/computed without knowing the other terms in the sequence. Now by using the given information, we can say that,

2nd row seat = 12+ 1x2

3rd row seat = 12 + 2 x2

nth seat = 12 + (n-1) x 2

16th row seat = 12 + (16–1) x2 = 42

Since the number of seats is increasing at a constant rate, we can calculate the average number of seats in each row by taking the average of the first and last rows

Average number of seats per row = (12 +42)/2= 27

So total seats = average per row x number of rows

= 27 x 16 = 432.

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A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). There are two production methods it could use. With one method, the one-time fixed costs will total $44,714, and the variable costs will be $11.50 per book. With the other method, the one-time fixed costs will total $17,174, and the variable costs will be $20 per book. For how many books produced will the costs from the two methods be the same?

Answers

The number of books published by a small publishing company is 3240.

Given that, a small publishing company is planning to publish a new book. The production costs will include one-time fixed costs and variable costs.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Let the number of books be x.

With one method, the one-time fixed costs will total $44,714, and the variable costs will be $11.50 per book.

That is, 44,714+11.50x

With the other method, the one-time fixed costs will total $17,174, and the variable costs will be $20 per book.

That is, 17,174+20x

Now, the number of books produced will the costs from the two methods be the same.

So, 44,714+11.50x=17,174+20x

⇒ 44,714-17,174=20x-11.50x

⇒ 8.5x = 27540

⇒ x=3,240

Therefore, the number of books published by a small publishing company is 3240.

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Please help!!!
For questions 10-13 use f(x)=4(1/2)^x

Answers

This is for part one


Find the eighth term of each geometric sequence. 3,9,27, . . . . .

Answers

Answer:

6561

Step-by-step explanation:

You multiply by 3 each time.


Simplify the expression.
16-12 / 15-11

Answers

The simplified expression for (16-12 / 15-11) is 1 .

The given expression is,

( 16-12 / 15-11 )

First we need to solve the numerator which is (16-12) and on simplifying the numerator we can write,

Numerator = ( 16 - 12 ) = 4                         equation 1

Similarly, now we can proceed to solve the denominator which is (15 - 11) and on simplifying the denominator we write,

Denominator  = (15 - 11) = 4                       equation 2

Now we can substitute the value of numerator and the denominator from equation 1 and equation 2 in the given expression ( 16-12 / 15-11 ) as,

(Numerator / Denominator) = (16-12 / 15-11) = (4/4) = 1

The simplified expression for (16-12 / 15-11) is 1 .

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2.
lons that are made of more than
one atom are called
A ionic compounds
B crystals
C polyatomic atoms
D ionic bonds

Answers

Answer:

C polyatomic atoms

Step-by-step explanation:

I'll give brainliest
What values of x and y satisfy the system of equations {x=−2y+13x+8y=11?
Enter your answer as an ordered pair, like this: (42, 53)
If your answer includes one or more fractions, use the / symbol to separate numerators and denominators. For example, if your answer is (4253,6475), enter it like this: (42/53, 64/75)
If there is no solution, enter "no"; if there are infinitely many solutions, enter "inf."

Answers

The solution of the simultaneous equation is given by (-7 , 4) .

A pair of simultaneous equations is the most common representation of a pair of straight lines in the cartesian plane.

For solving a pair of simultaneous equation we can use various procedures such as the matrix method, substitution or the method of elimination.

The given pair of simultaneous equation is given as:

x=−2y+1

3x+8y=11

Let us solve the equations by the method of substitution:

From the first equation we take the value of x and put it in the second equation:

3x + 8y = 11

or, 3 ( -2y + 1 ) + 8y = 11

or, -6y +3 +8y = 11

or, 2y + 3 = 11

or, 2y = 8

or, y = 4

Substituting the value of y as 4 in the first equation we get:

x = − 2y + 1

or, x = - 2 × 4 +1

or, x = -8 +1

or, x = -7

Therefore the solution set of the pair of equations is given by (-7 , 4) .

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Put the following numbers in order from least to greatest
1/2, -2, √5, -7/4, -24

Answers

Answer:

-24 < -2 < -7/4 < 1/2 < √5

Step-by-step explanation:

Negative integers are always less than 0 and positive integers. More the magnitude (numerical value) of a negative integer, lesser is that number.Hence the order of negativeintegers will be -24 < -2 < -7/4. 1/2 is 0.5 and root 5 is around 2.236. Hence, 1/2 < √5. The final order is -24 < -2 < -7/4 < 1/2 < √5

Three integers have a mean of 8, a median of 8 and a range of 4.

Answers

Answer:

The 3 integers are 6 8 and 10

Step-by-step explanation:

Comment

Start with the median. That's the middle number of an ordered set of numbers.

a 8 b               is what you have so far.

Now the range between a and b is 4 which means that a and b differ by 4.

a + 4 =  b

The mean will solve this quickly. Put a + 4 for b

[(a + 8  + a + 4)]/3 = 8            Combine like terms

(2a + 12)/3 = 8                       Multiply both sides by 3

3 (2a + 12)/3 = 8 *3              

2a+12 = 24                            Subtract 12 from both sides

2a + 12 - 12 = 24-12               Combine

2a = 12

a = 6

but we know that the range between a (which is 6 ) and b is a + 4 = 10

So b must equal 10

Mean: average number
Median: middle number
Range: largest - smallest

Mean: ? + ? + ? = ? / 3 = 8, so 8x3=24, the equation is now ?+?+?=24

Median: ?,8,? Because median is 8

Range: 10,8,6. 10-6=4

Double check:
Mean: 10 + 8 + 6= 24/3= 8✔️
Median: 10,8,6= 8✔️
Range: 10,8,6. 10-6=4✔️
Numbers: 10,8,6

factorise and hence evaluate :
2,014^2-2,012^2

Answers

Answer:

8,052

Step-by-step explanation:

(2,014 - 2,012) x (2,014 +2,012)

2 x 4,026

8,052

Find the volume of a cone that has a diameter of 10 inches and height of 2 inches in terms of pi. (PLEASE SHOW WORK IF POSSIBLE)

Answers

The volume of a cone that has a diameter of 10 inches and height of 2 inches in terms of pi 50/3pi cubic inches

Volume of a cone

The formula for calculating the volume of a cone is expressed according to the formula

V = 1/3 pir²h

where

r is the radius of the cone = 10/2 = 5in

h is the height = 2in

Substitute to have;

V = 1/3pi(5)² × 2

V = 50/3pi

Hence the volume of a cone that has a diameter of 10 inches and height of 2 inches in terms of pi 50/3pi cubic inches

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Determine if 21 ​ is rational or irrational and give a reason for your answer.

Answers

21 is a rational. A rational number is any integer, fraction, terminating decimal, or repeating decimal.

Can someone provide a justification?

Answers

The piecewise function that best models her weekly pay h(t) is given by:

h(t) = 12t, 0 ≤  t ≤ 40.h(t) = 480 + 18t.

What is a piecewise-defined function?

A piecewise-defined function is a function that has different definitions, depending on the input of the function.

For this problem, we have that:

The input is the number of hours worked.The output is the weekly pay.

Her weekly pay is calculated differently according to the number of hours worked, divided into two cases as follows:

Standard hours: t ≤ 40.Overtime hours: t > 40.

For up to 40 hours, she receives the standard wage of $12, hence:

h(t) = 12t, 0 ≤  t ≤ 40.

For more than 40 hours, she receives $12 x 40 = $480 plus 1.5 x $12 = $18 per hour worked, hence:

h(t) = 480 + 18t.

Hence the piecewise function that best models her weekly pay h(t) is given by the following definition, from the equations that we found prior in this problem:

h(t) = 12t, 0 ≤  t ≤ 40.h(t) = 480 + 18t.

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Which is an equivalent expression for (5^2 • 3^4)^3?

15^18
5^6 • 3^12
5^2 • 3^12
5^5 • 3^7

Answers

Answer:

answer 2

Step-by-step explanation:

3*4=12

Answer:

B.  5^6 x 3^12

Step-by-step explanation:

(5^2 x 3^4)^3 =

5 x 5 x 3 x 3 x 3 x 3 =

25 x 81 =

2025

2025^3 =

8,303,765,625

Option B is correct because,

5^6 x 3^12 =

5 x 5 x 5 x 5 x 5 x 5 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 x 3 =

15,625 x 531,441 =

8,303,765,625


Determine the probability of following event, flipping a coin and not landing on heads

Answers

According to the question, to calculate the probability of an event which states that flip a coin and not landing on head. That means P = {H,T}

Therefore, the probability can be written as:

Probability of getting tail = [tex]\frac{no of favorable events}{total number of outcomes} = \frac{1}{2}[/tex]

Therefore, the probability of a coin in which head is not landing is [tex]\frac{1}{2}[/tex].

What is Probability?

The term probability means the study of the occurrence or the outcomes of the event. It is the measurement of the events that occurred during events. And many uncertain events cannot be measured.

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In a bag, the ratio of purple counters to green counters was 3:4. 8 more purple counters were then added to the bag, and the ratio of purple counters to green counters became 5 : 4. How many green counters are in the bag?​

Answers

Answer:16

Step-by-step explanation:

since the increase is 2 units for purple counters

8 ÷ 2 = 4

4×4=16

how can changing fractions to decimals make them easier to compare?

Answers

Answer:

They are easier to compare because you don't have to simplify in your head or change denominators to make two fractions comparable.

Step-by-step explanation:

A diver is 7.5 meters above water. she takes her dive 1.7 meters below the surface. how far does the dive take her.

Answers

The diver take her at a distance of 9.2 meters.

What is distance?

A resultant displacement can be used to quantify distance. It involves measuring the coordinate values of the beginning and ending positions. The distance is measured in quantities like meters, centimeters, kilometers, etc.

A diver descends 1.7 meters below the surface of the water while suspended 7.5 meters above it, according to the question.

According to fundamental mathematics, values that are less than zero can be represented as negative values.

She will thus descend (-1.7) meters as she dives below the surface.

The formula may now be expressed as follows: Total Distance = 7.5 - (-1.7) = 9.2 meters.

As a result, the diver descends 9.2 meters below the surface with her.

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Which expression is equal to this expression, according to the associative property? 5+(3-1)

Answers

Answer:7

Step-by-step explanation:

3-1= 2

5+2=7


Use summation notation to write each arithmetic series for the specified number of terms. Then evaluate the sum. 21+19+17+ . . . ; n=8

Answers

The summation notation for given arithmetic series is ∑21-2n , where n starts from 0.

The given series is 21+19+17+ . . .

On looking at the series we can easily notice that there is an decrease of 2 from one term to the next successive term.

So the formula will be (-2n +/- something).

Our first term is 21 and then decrease of 2, So we can say that the formula will be (21 - 2n) and n starts from 0.

So if n=0, our first term is 21

If n=1, our second term is 19

If n=2, our third term is 17

and so on.

So, we have the expression (21 - 2n).

The summation notation for given arithmetic series is ∑21-2n , where n starts from 0.

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Evaluate the function at each specified value of the independent variable and simplify.

f(x) = x² + 1

a) f(1) =
b) f(-3) =
c) ƒ (6³) =
d) f (x - 1) =​

Answers

The answer is bbbbbbbb


List all the 4-digit even numbers
that can be created by
rearranging
these number tiles.
3472

Answers

I think it’s
3472
3742
3724
3274
7342
7324
7234
7432
2374
2734
4732
4372
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