Kinetic energy of Usain is 4700kg-m²/s².
Kinetic energy of Usain's brother is 18800kg-m²/s².
If we double the mass kinetic energy get doubled.
What is kinetic energy ?
Kinetic energy of an object is the energy that it possess due to its motion.
It is calculated as [tex]\frac{1}{2}mv^{2}[/tex] where m is mass and v is velocity.
In Usain's case m = 94kg and v = 10m/s.
So, kinetic energy = 4700kg-m²/s².
In Usain's brother case mass is same but velocity is doubled.
So, kinetic energy = 18800kg-m²/s².
From the formula we can see ,
if mass is doubled then kinetic energy get doubled.
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What is the length hypotenuse of a right triangle with legs 8 units and 6 units?; What is the length of the hypotenuse for a right triangle with leg a 8 and leg B 15?; How do you find the length of one leg of a right triangle?; How do you find the length of the legs of a right triangle with the hypotenuse?
The length of the hypotenuse with legs 8 units and 6 units is 10 units and with leg 8 units and 15 units is 17 units. We calculate the length of a leg of the right triangle by using formula [tex]h ^ {2} = p ^ {2} + b ^{2}[/tex]
What is a right-angle triangle?If one of the angles in a triangle is 90 degrees, the triangle is said to have a right angle. The term "right angle" refers to angles in right triangles that are 90 degrees. The side opposite in a 90° angle is the hypotenuse. The hypotenuse is always the longest side. The sum of the other two inner angles is 90 degrees.
What is the Pythagorean theorem for right angle triangle?The Pythagorean theorem, sometimes known as Pythagoras' theorem, is a basic relationship between a right triangle's three sides in Euclidean geometry.
length of legs = 8 units and 6 units
hypotenuse = [tex]\sqrt {8 ^ {2}+6 ^ {2}}[/tex] = 10 units
length of legs = 8 units and 15 units
hypotenuse = [tex]\sqrt {8 ^ {2}+15 ^ {2}}[/tex] = 17 units
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A and B are events defined on a sample space, with P(A) = 0.6 and P(BIA) = 0.3. Find P(A and B)
A and B are events defined on a sample space, with P(A) = 0.6 and P(BIA) = 0.3. then P(A and B) = 0.18
What is conditional probability?Conditional probability is a term used in probability theory to describe the likelihood that one event will follow another given the occurrence of another event.
If A and B are events defined on the sample space with P(A) = 0.6 and P(BIA) = 0.3.
To find P(A and B),
we use the formula of conditional probability,
P( A and B ) = P (BIA) P(A)
P( A and B ) = 0.6 × 0.3
P( A and B ) = 0.18
Therefore, P ( A and B ) is 0.18.
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Which table of values matches the equation y - 3x - 3?
As a result, the second table agrees with the formula y= 3x -3.
What is equation?The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign. A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7.
Here,
-3x - 3 = -6
y= 3x -3
Therefore, the second table matches the equation y= 3x -3.
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Help!
Para determinar el monto del interés de un depósito con cierta tasa de interés , capital inicial
y tiempo , se usa la siguiente expresión: =
∙ (1 +
100)
. Carlos depositó un capital de
$ 1.500.000 durante un año y medio a una tasa de interés mensual del 2,5 %, ¿cuál es el monto que
retirará Carlos después de este período?
The balance of Carlos account after this period, using simple interest, is of:
$2,339,488.08.
How to obtain the balance?This is a simple interest problem, hence the balance of the account can be obtained using an exponential function, defined as follows:
[tex]B(n) = B(0)(1 + r)^n[/tex]
In which the parameters of the exponential function are defined as follows:
B(0) is the initial deposit.r is the interest rate, as a decimal.n is the number of periods.In the context of this problem, the values of these parameters are given as follows:
B(0) = 1500000, r = 0.025, n = 18, as one and a half year = 18 months.
Then the balance of Carlos account is obtained as follows:
B(18) = 1500000(1.025)^18 = $2,339,488.08
TranslationCarlos deposited: $1,500,000.Time of 1.5 years.Interest rate of 2.5% montly.Asks for the balance.More can be learned about simple interest at
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How much money should be deposited today in an account that earns 4% compounded monthly so that it will accumulate to 12000 dollars in three years?
$9483.774 money should be deposited in the account.
Let the amount to be invested be P=$x so that the amount accumulated is A = $12000. We have t=3 years. The rate of interest is r=0.04 per year. n = 2 as interest will be compounded twice a year.
What is interest?
Interest, in its most simple form, is calculated as a percent of the principal.
Interest is the amount of money a lender or financial institution receives for lending out money. Interest can also refer to the amount of ownership a stockholder has in a company, usually expressed as a percentage.
Now,
[tex]x (1 + \frac{0.04}{2} )^{2 * 3}[/tex] [tex]= 12000[/tex]
[tex]x(1.04)^{6}[/tex] [tex]= 12000[/tex]
[tex]x = \frac{12000}{(1.04)^{6} }[/tex]
≈ 9483.774
∴ Amount invested ≈ $9483.774.
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which graph represents the function fx x2 5
In the picture we can see the graph represents of the function f(x)=-x²+5 that is curve graph.
Given that,
We have to find the graph represents the function f(x)=-x²+5.
We know that,
The quadratic function is f(x)=-x²+5.
This is a vertical parabola open downward
The vertex is a maximum
We know,
A vertical parabola's equation in vertex form is equal to
y= a(x-h)²+k
where
a is a coefficient
(h,k) is the vertex
Here
a=-1
(h,k)=(0,5) is vertex
The y-intercept is the point (0,5) is value of y when the value of x is equal to zero (is the same point that the vertex)
The x-intercepts are the points is values of x when the value of y is equal to zero
Therefore, In the picture we can see the graph represents of the function f(x)=-x²+5.
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Based on the 90% confidence interval of (8.21, 11.75) points, which of the following are reasonable 95% confidence intervals for the population mean difference in exam scores before and after taking an exam prep course? Select any that may apply: 83, 12.13) points 53, 11.83) points (8.45, 11.51) points (8.63, 11.33) points Cannot be determined with the information given: Saved
The reasonable 95% confidence intervals for the population mean difference is (7.83, 12.13) , the correct option is (a) .
In the question ,
it is given that ,
90% confidence interval is given as (8.21 , 11.75)
using this interval , we have to find the 95% confidence interval .
Now, [tex]x_{d}[/tex] - E = 8.21
[tex]x_{d}[/tex] + E = 11.75 , where E is the margin of Error .
Solving the equations ,
we get ,
E = 1.77 and [tex]x_{d}[/tex] = 9.98
So , the margin of error E is given as
E = [tex]t_{\frac{0.10}{2},15 } \times \frac{S.D.}{\sqrt{n} }[/tex]
we have to find standard deviation from this ;
given n = 16 and [tex]t_{\frac{0.10}{2},15 }[/tex] = 1.7531
Substituting in the margin of error equation ,
we get ,
S.D. = (1.77 × 4)/1.7531
= 4.0386
So , the 95% confidence interval is given as [tex]x_{d}[/tex] ± [tex]t_{\frac{0.10}{2},14 } \times \frac{S.D.}{\sqrt{n} }[/tex] .
from t table , [tex]t_{\frac{0.10}{2},14 }[/tex] = 2.1314
Substituting ,
we get ,
CI = (9.98 ± 2.1314×4.0386/√16)
= (9.98 ± 2.1519)
= ( 9.98 - 2.1519 , 9.98 + 2.1519)
= (7.83 , 12.13)
Therefore , the correct option is (a) (7.83 , 12.13) .
The given question is incomplete , the complete question is
Based on the 90% confidence interval of (8.21, 11.75) points, which of the following are reasonable 95% confidence intervals for the population mean difference in exam scores before and after taking an exam prep course? Select any that may apply:
(a) (7.83, 12.13)
(b) (7.53, 11.83)
(c) (8.45, 11.51)
(d) (8.63, 11.33)
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Ball A is dropped from the top of a building. At the same instant, ball B is thrown vertically upwards from the ground. When the balls collide, they are moving in opposite directions and the speed of A is twice the speed of B. At what fraction of the height of the building did the collision occurs? B. 2/3
The fraction of height at which the collision occured is , y/y₀ = 1/2 + v₀²/(2 g y₀) .
For ball A
Given that the ball is dropped and its initial velocity is zero, the equation is
= - 2 g (y₀-y)
For ball B
v {B}^2 = v₀² - 2 g y
We swap out
2v {B}^2 = -2 g (y₀ -y)
g y0 + 2 g y = -v B2
v {B}^2 = v₀² - 2gy
It can be solved because it is a system of two equations with two unknowns. Let's add and multiply by -1.
0 = g y₀ + v₀² -2gy
Bypassing the height
y = (g yo plus v02) / 2g
y = yo / 2 + v₀² / 2g
In this exercise, we'll assume that the building's height and ball B's initial velocity are both known.
The percentage is
y/yo
= 1/2 + v₀²/(2gyo) (2gyo)
Velocity and speed describe how quickly or slowly an object is moving. We frequently encounter circumstances when we must determine which of two or more moving objects is going faster.
If the two are travelling on the same route in the same direction, it is simple to determine which is quicker.
It is challenging to identify who is moving the fastest when their motion is in the other direction.
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sorry for asking to much its cause i dont understand please help. whats the answer
The difference between the numbers 4.7 and 2.3 is 2.4
what is number line ?
The visual representation of numbers on a straight line is called a number line. On an endless line that extends on both sides, either horizontally or vertically, this line is used to compare numbers that are spaced at equal intervals. The numbers on a horizontal number line grow as we approach towards the right side and drop as we move towards the left.
Between 4 and 5 , there are 10 divisions. Each division shows the value 0.1.
So, 4.7 is marked as shown in the figure.
To find the difference 4.7 - 2.3 , reverse the direction by 2.3 units from 4.7, will give us 2.4..
So, the difference between 4.7 and 2.3 is 2.4
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Russell Slater bought 700 shares of Disney stock at $106.50 per share. Assume a commission of 4% of the purchase price. What is the total cost to Russell?
77532 is the total cost to Russell
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given,
Russell Slater bought 700 shares of Disney stock at $106.50 per share
The amount for 700 shares is 700×106.5
74550
commission of 4% of the purchase price.
We have to convert 4% to decimal value by dividing 4 by 100
0.04
Now multiply 0.04 with 74550 to get the commission
0.04×74550
2982
Now add this commission amount with 74550 to find total cost,
2982+74550
77532
Hence, 77532 is the total cost to Russell
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Question A zoo sells 43 adult tickets and 80 child tickets in one day. Each adult ticket costs $20 and each child ticket costs $13.
The total amount of ticket sales on this day is $1900.
What is meant by an algebra?Math has several different subfields, including algebra. Algebra, a common thread that runs through nearly all of mathematics, is the study of mathematical symbols and the rules for using them in formulas.
Elementary algebra is crucial for all mathematical applications since it deals with the manipulation of variables, which are frequently represented by Roman letters, as though they were numbers. The study of algebraic structures such as groups, rings, and fields is known as abstract algebra, mostly in education (the term is no more in common use outside educational context). In contemporary presentations of geometry, linear algebra—which deals with linear equations and linear mappings—is used.
Given,
Number of adult tickets sold by zoo=43
And number of child tickets sold by zoo=80
Also given that,
The cost of each adult ticket=$20
And the cost of each child ticket=$13
20 x 43 = 860
80 x 13 = 1040
860 + 1040 = 1900
Therefore, the total amount of ticket sales on this day is $1900
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The complete question is:
"Question A zoo sells 43 adult tickets and 80 child tickets in one day. Each adult ticket costs $20 and each child ticket costs $13.
What is the total amount of ticket sales on this day?
Enter your answer in the box.
$="
Houa works at an electronics store as a salesperson. Houa earns a 9% commission on the total dollar amount of all phone sales she makes, and earns a 6% commission on all computer sales. Houa made a total of $1700 in sales and earned $135 in commission. Write a system of equations that could be used to determine the dollar amount of phone sales Houa made and the dollar amount of computer sales she made. Define the variables that you use to write the system.
The required amount for phone and computer sales is $1100 and $600 respectively.
Given that,
Houa works at an electronics store as a salesperson. Houa earns a 9% commission on the total dollar amount of all phone sales she makes and earns a 6% commission on all computer sales. Houa made a total of $1700 in sales and earned $135 in commission.
What are simultaneous linear equations?
Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.
here,
Let the number of phone sales be x and the number of computer sales be y,
According to the question,
0.09x+0.06y=135, - - - - - (1}
x+y=1700 - - - - - - - (2)
Solving equation 1 and 2
Gives, x = $1100 and $600
Thus, the required amount for phone and computer sales is $1100 and $600 respectively.
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What is the slope of a line parallel to the line whose equation is 2x y =- 7?; What is the slope of a line parallel to the line whose equation is Y =- 1 2x 3?; How do you find the slope of a parallel line?; Which is the equation of a line parallel to the line with the equation y 3x 5?
The slope of the line parallel to the given lines are as follow:
a. Slope of the line parallel to 2x + y = -7 is -2.
b. Slope of the line parallel to y = (- 1 + 2x) 3 is 6.
c. Slope of the parallel lines are always equal.
d. Equation parallel to the given line y = 3x -5 are y = 3x + c , c may have any real value.
As given in the question,
Slope of two or more parallel lines are always same.
Equation in the form y = mx + c ,
here 'm' is the slope.
a. Slope of the line parallel to 2x + y = -7
y = -2x -7
Slope of the line is -2.
Slope of the line parallel to the given line is -2.
b. y = (- 1 + 2x) 3
⇒ y = 6x -3
Slope of the line is 6 .
Slope of the line parallel to the given line is also 6.
c. Slope of the parallel lines are always equal.
d. Equation of the line parallel to the given line y = 3x -5 is given by:
y = 3x + c , here slope remain same only c value get change.
Therefore, slope of the given lines are:
a. Slope of the line parallel to 2x + y = -7 is -2.
b. Slope of the line parallel to y = (- 1 + 2x) 3 is 6.
c. Slope of the parallel lines are always equal.
d. Equation parallel to the given line y = 3x -5 are y = 3x + c , c may have any real value
The complete question is:
a. What is the slope of a line parallel to the line whose equation is
2x + y =- 7?
b. What is the slope of a line parallel to the line whose equation is
Y = (- 1 + 2x) 3 ?
c. How do you find the slope of a parallel line?
d. Which is the equation of a line parallel to the line with equation y=3x- 5?
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Which value of n makes the equation true? -1/2 n = -8
Answer:
n = 16
Step-by-step explanation:
-1/2 n = -8
(-1/2 * n = -8) * 2 ==> multiply the equation by 2 to remove fractions
-1 * n = -16
-n = -16 ==> simplify
n = 16
Answer: 16
Step-by-step explanation:
-1/2n=-8
Divide by -1/2
n=16
:) anything helps. I dont understand
The values of x in the triangles are (a) 15 and (b) 4
How to determine the values of x in the figures?From the question, we have the following parameters that can be used in our computation:
Triangle 1 and Triangle 2
Solving triangle 1
In this triangle, we can see that the side lengths of the triangles are congruent
This means that the triangles is an equilateral triangle
The individual angles in an equilateral triangle are 60 degrees
So, we have the following representation
4x = 60
Divide both sides of the equation by 4
x = 15
So, the value of x is 15
Solving triangle 2
In this triangle, we can see that the length KM of the triangle divides the length JL into congruent parts
This means that the JM and LM are congruent
So, we have the following representation
x + 1 = 5
Subtract from both sides of the equation by 1
x = 4
So, the value of x is 4
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bro just help me pks
Answer:
6
Step-by-step explanation:
3 is 3/5 of 5 therefore 6 would be 3/5 of 10 and the triangles are similar so
McDonald’s Corp (MCD) stock is selling for $90.24 per share. They offer a dividend of $2.80 per share. What is the stock yield? (Round to nearest tenth.)
Multiple Choice
3.1%
.031%
5.8%
.059%
The value of the stock yield will be;
⇒ 3.1%
What is mean by Percentage?
A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
Given that;
McDonald’s Corp (MCD) stock is selling for $90.24 per share.
And, They offer a dividend of $2.80 per share.
Now,
Since, McDonald’s Corp (MCD) stock is selling for $90.24 per share.
And, They offer a dividend of $2.80 per share.
Hence, The value of the stock yield is;
⇒ 2.80/90.24 × 100
⇒ 0.0310 × 100
⇒ 3.1%
Thus, The value of the stock yield will be;
⇒ 3.1%
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A true-false quiz with 10 questions was given to a statistics class. Following is the probability distribution for the score of a randomly chosen student. Find the mean score and interpret the result. Round the answers to two decimal places as needed. 5 6 7 8 9 10 P(x) 0.06 0.18 0.37 0.22 0.11 0.06 Send data to Excel The mean is If we were to give this quiz to more and more students, the mean score for these students would approach :
The mean score is 6.48. If we were to give this quiz to more and more students, the mean score for these students would approach 6.48.
Probability is a measure of the likelihood of an event occurring. It is a number between 0 and 1, with 0 representing an impossible event and 1 representing a certain event. The probability of an event is calculated by dividing the number of ways the event can occur by the total number of possible outcomes.
To find the mean score, we need to calculate the expected value of the score. The expected value is calculated by multiplying the score by its probability and summing over all possible scores.
The expected value is:
(5 * 0.06) + (6 * 0.18) + (7 * 0.37) + (8 * 0.22) + (9 * 0.11) + (10 * 0.06) = 6.48
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Determine which integers in the set S: {−2, −3, −4, −5} will make the inequality 2p − 8 < 5p + 4 true.
S:{−2, −3}
S:{−3, −4}
S:{−4, −5}
S:{−2, −5}
Answer:
A
Step-by-step explanation:
2p - 5p < 8 + 4
- 3p < 12
-3/-3 p > 12/-3
p > -4
-2, - 3
HELP ME QUICICICKCKC
Answer:
A.
Step-by-step explanation:
Multiply the x like terms than multiply the other like terms
A circle with a radius 7 cm long is centered at an angle's vertex, and the angle's rays subtend an arc length of 15 cm along the circle. The subtended arc is how many times as long as the circle's radius? 07 _ 15 = 8 O15 _ 7 = 8 7 0.467 15 15 0.341 2T0 15 2.143
The subtended arc is 2.14 times as long as the circle's radius.
What is radius of circle?
A circle or sphere's radius is any line segment that connects the object's center to its perimeter in classical geometry; in more contemporary usage, it also refers to the length of those line segments. The word "radius" is derived from Latin and means "ray" as well as "the spoke of a chariot wheel."
Given:
A circle with a radius 7 cm long is centered at an angle's vertex, and the angle's rays subtend an arc length of 15 cm along the circle.
The radius of the circle is 7 and length of the subtend are is 15 cm. The required value is given by:
Subtended arc / Radius = 15 / 7 = 2.14
Therefore, option (e) is the correct answer.
Hence, the subtended arc is 2.14 times as long as the circle's radius.
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What are all the real zeros of y=(x-12)3-7?
The real zeros in the given equation y = (x-12)³ - 7 will be x = 13.912.
For the real solutions, we know that a real zero is a real number which makes the value of the function zero. By the question, let
y = 0 ..........(1)
Put values of 'y' in equation (1), and we get.
(x-12)³ - 7 = 0 .........(2)
Adding '7' on both sides of equation (2), we get
(x-12)³ = 7
Taking the cube root on sides, the resulting equation will be:
[tex]\sqrt[3]{(x-12)^{3} }[/tex] = [tex]\sqrt[3]{7}[/tex]
x - 12 = 1.912
By adding '12' on both sides.
x = 13.912
So the only real zeros for the given equation will be 13.912. Other solutions are imaginary zeros.
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Blood pressure in a population of very at risk people has expected value of 195 and a standard deviation of 20. Suppose you take a random sample of 100 of these people: There would be a 68% chance that the average blood pressure would be between Select one: 155 to 235 193 to 197 175 to 215 191 to 199 200 to 230
There would be a 68% chance that the average blood pressure would be between 193 to 197.
The subset chosen from the larger set to make assumptions is known as a random sample. A range of values is a confidence interval.
We know that,
E = z ( α / 2 ) × σ / √n → 1
As per the given question,
Blood pressure in a population of very at risk people has an expected value ( x ) = 195Standard deviation ( σ ) = 20Number of random samples ( n ) = 100For 68% confidence,
z ( α / 2 ) = 0.9944
Substitute the values in 1,
E = z ( α / 2 ) × σ / √n
= 0.9944 × 20 / √100
= 0.9944 × 20 / 10
= 0.9944 × 2
E = 1.9888 ≅ 1.99
Let us consider,
⇒ x - E < μ < x + E
⇒ 195 - 1.99 < μ < 195 + 1.99
⇒ 193.01 < μ < 196.99
⇒ 193 < μ < 197 ( ∵ 193.01 ≅ 193 and 196.99 ≅ 197 )
⇒ μ = ( 193 , 197 )
Therefore, A 68% chance that the average blood pressure lies between 193 to 197. Hence Option b is correct.
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The complete question is
Blood pressure in a population of very at risk people has an expected value of 195 and a standard deviation of 20. Suppose you take a random sample of 100 of these people. There would be a 68% chance that the average blood pressure would be between Select one:
a.) 155 to 235
b.) 193 to 197
c.) 175 to 215
d.) 191 to 199
e.) 200 to 230
what's 1+1 wrong answers only if you guess 2 or 11 your done
Answer: 2
Step-by-step explanation:
Molly bought 4 band shirts and 3 pair of pants for 159.99 Christian bought 3 band shirts and 2 pair of pants for 113.00. How much is 5 band shirts and 5 pair of pants
Total $234.95 is the cost of 5 band shirts and 5 pair of pants.
What is the system of equation?One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.
Given, Molly bought 4 band shirts and 3 pair of pants for $159.99.
And Christian bought 3 band shirts and 2 pair of pants for $113.00.
Let x be the band shirts and y be the pair of pants.
So, according to the question;
4x + 3y = 159.99 equation 1
3x + 2y = 113 equation 2
Now, we have the system of the equations.
In order to solve the system of equations:
Multiply 4 to the equation 2 and multiply 3 to the equation 2.
12x + 9y = 479.97
12x + 8y = 452
Subtracting the transformed equation 2 to transformed equation 1.
y = 27.97
Then 12x = 479.97 - 251.73
12x = 228.24
x = 228.24 / 12
x = 19.02.
To find the amount of 5 band shirts and 5 pair of pants:
5x + 5y
= 5 (19.02) + 5(27.97)
= 95.1 + 139.85
= 234.95
Therefore, 5 band shirts and 5 pair of pants cost $234.95.
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Write the equation of the transformed graph of tangent with period 4 that has
y = 3 + tan (π/4)x , this is the equation of transformed graph of tangent with period 4 that has been shifted vertically up 3 units.
Our parent function:
y = tan x
Let's apply the vertical shift now:
y = 3 + tan x
Now the period. This is a little tricky because we have to remember that the period is equal to π/b, because tangent functions normally have a period of π, and the b is the value placed in front of the x.
In this case, that value would have to be π/4
π/(π/4) = 4
Therefore, our b-value is π/4 and our final equation is as follows:
y = 3 + tan (π/4)x
The question is :
write the equation of the transformed graph of tangent with period 4 that has been shifted vertically up 3 units
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The following graph shows a top-opening parabola.
What is the vertex form of the equation that represents this parabola?
Responses
y=(x−9)2−1y is equal to open paren x minus 9 close paren squared minus 1
y=(x+1)2−9y is equal to open paren x plus 1 close paren squared minus 9
y=(x+9)2−1y is equal to open paren x plus 9 close paren squared minus 1
y=(x−1)2−9
Answer:
(b) y=(x+1)²−9
Step-by-step explanation:
You want the vertex form equation of the graphed parabola, which opens upward and has its vertex at (-1, -9).
Vertex formThe vertex form equation for a parabola with vertex (h, k) is ...
y = (x -h)² +k
The vertex of the parabola shown is (h, k) = (-1, -9). Using these values in the equation gives ...
y = (x +1)² -9
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Additional comment
The equation may include a scale factor that multiplies the square. Here, the curve rises 1 unit for 1 unit either side of the vertex, so the scale factor is 1. (The rise at ±1 from the vertex is the scale factor.)
Steps: (1) read the vertex coordinates from the graph; (2) put those coordinates in the vertex form equation; (3) check to see that the vertical scale factor is 1.
A line includes the points (4, 4) and (0, 3). What is its equation in slope-intercept form?
The required slope-intercept form of the equation of the line is y = x/4 + 3.
To determine the equation of the line in slope-intercept form passing through the points (4, 4) and (0, 3).
What is the slope of the line?The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.
here,
m = (y₂ - y₁) / (x₂ - x₁)
Substitute the points,
m = [3 - 4] / [0 - 4]
m = 1 / 4
Standard equation of the line
y - y₁ = m (x - x₁)
Substitute one point and m in the above equaiton
y - 3 = 1/4 [x - 0]
y = x/4 + 3
Thus, the required slope-intercept form of the equation of the line is y = x/4 + 3.
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1. Let N be set of New England states {ME, NH, VT, MA, CT, RI }. (See map provided.) (Note that Maine is abbreviated as ME and Massachusetts as MA.) For each of the following parts, either give an example of a relation on the set of New England states N that has the noted properties, or else show that no such relation exists. (a) A relation R on N that is reflexive and symmetric but not transitive. (b) A relation S on N that is reflexive and transitive but not symmetric. (c) A relation T on N that is transitive and symmetric but not reflexive.
A relation R on N that is reflexive and symmetric but not transitive of example is { N , ME , MA } .
Given :
Let N be set of New England states {ME, NH, VT, MA, CT, RI }. (See map provided.) (Note that Maine is abbreviated as ME and Massachusetts as MA.) For each of the following parts, either give an example of a relation on the set of New England states N that has the noted properties, or else show that no such relation exists.
a )
A relation R on N that is reflexive and symmetric but not transitive of example is { N , ME , MA } .
b )
A relation S on N that is reflexive and transitive but not symmetric is { MA , CT , RI } .
c )
A relation T on N that is transitive and symmetric but not reflexive is { ME , NH , VT } .
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Show and explain how replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions as the one shown.8x + 7y = 394x - 14y = -68
Answer:
Solution of the given equation by elimination method is x=0.5 and y=5.
Step-by-step explanation:
8x + 7y = 39 --------------(1)
4x - 14y = -68 ------------(2)
Multiply the equation 2 by -2, then add the equations along.
Equation (2) multiply by -2 : -8x +28y = 136
8x + 7y = 39 --------------(1)
-8x +28y = 136-----------(2)
Add these equations to eliminate x:
0x+35y=175
35y=175
y=5
Substitute y=5 in 8x+7y=39:
8x+(7)(5) =39
8x+35=39
8x=39-35
8x=4
X=8/4
x=0.5
Solution of the given equation by elimination method is x=0.5 and y=5.
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