PLEASE HELP! I WILL GIVE BRAINLY ALSO SUMMARIZE!! (if u troll ill report!)
A sports medicine major wanted to conduct an experiment to determine if there is a correlation between the members of the soccer team's leg strength and the time it takes for them to sprint 40 yards. He sets up the following test and records the data:

PLEASE HELP! I WILL GIVE BRAINLY ALSO SUMMARIZE!! (if U Troll Ill Report!)A Sports Medicine Major Wanted

Answers

Answer 1
Answer:

The time for 22 leg-press reps is 11.9 seconds.

Step-by-step explanation:

The lines of best fit is the trend line of the dataset.

The equation of line of best fit is y = 0.120x + 9.274The time for 22 leg-press reps is 11.9 seconds(A) The equation of the line of best fit

The table is given as —

(x) : 12 32 7 26 28 15 1

(y) : 8.6 14.6 7.1 8.3 11.9 19.4 9.5

To determine the equation of line of best fit, we make use of a regression calculator.

Enter the above dataset in a regression calculator, the equation is: y = 0.120x + 9.274 (Approximated to Three Decimal Places / Rounded of to the Thousandths Place)

(B) The number of seconds for 22 leg-press reps

This means that x = 22.

So, we have:

y = 0.120 * 22 + 9.274

  = 2.640 + 9.274

  = 11.914

(Approximate to the nearest hundredths)

  = 11.9

Hence, the time for 22 leg-press reps is 11.9 seconds.


Hope my answer helps you.

:)

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Related Questions

explain how you can use proportional reasoning to determine the whole if you know that 21 is 60% of the whole

PLEASE EXPLAIN. DONT GIVE THE ANSWER,, GIVE AN EXPLANATION

Answers

Using a proportion ratio you can make the equation: 21/60=x/100 there you can use the means extremes property to get your answer, hope this helped

Find the lower quartile and upper quartile of the data set. 10, 11, 13,18,19,21,22,25,27,30,32

Answers

i believe the answer is 2

The lower quartile value is 13 and the upper quartile value is 27.

What is a Quartile?

A quartile divides the data set into four equal halves, that is, each set has an equal number of terms. The quartiles are given by Q₁(the lower quartile value), Q₂ (the median), Q₃ (the upper quartile value).

We first arrange the data set in ascending order. Here, the data set is already in ascending order, that is, 10,11,13,18,19,21,22,25,27,30,32.

So we will divide the above set into two equal halves. As the given set has 11 terms,

So the median is [tex]\frac{n+1}{2}[/tex] where n is the number of terms.

We have n=11

⇒ Median= [tex]\frac{11+1}{2}[/tex] th term

                = 6th term

⇒ Median= 21

Now the data to the left side of the median value will give the lower quartile and the data to the right will give the upper quartile.

The data to the left of median value 21 is 10,11,13,18,19.

The median value of this data will give the lower quartile value.

Median = [tex]\frac{5+1}{2}[/tex]th term= 3rd term

              =13

Lower quartile is 13.

The data to the right of the median value 21 is 22,25,27,30,32

The median value of this data will give the upper quartile value.

Median = [tex]\frac{5+1}{2}[/tex]th term= 3rd term

             = 27

Upper quartile is 27.

The correct answer is lower quartile= 13, upper quartile = 27

Learn more about quartiles here:

https://brainly.com/question/29809572

#SPJ2

Find the value of 15+2k when k=3.

Answers

Answer:

15+2k=21

Step-by-step explanation:

When k=3, we can replace k in the formula with (3), giving us

15+2(3) = 15+6 = 21

Answer:

21

Step-by-step explanation:

15 + 2k when k = 3

15 + 2(3)

15 + 6

21

Write your question here (Keep it simple and clear to get the best answer)

Answers

(-3,-5)

The length of the diagonal of the rectangle is 10 units.

29 POINTS TO WHOEVER GETS THIS RIGHT ( NEEDS AN EQUATION AND ANSWER)

Ava bought snacks for her team's practice. She bought a bag of oranges for $2.71 and a 4-pack of juice bottles. The total cost before tax was $6.75. Write and solve an equation which can be used to determine jj, how much each bottle of juice cost.

Answers

Answer: Let j be the cost of each juice bottle.

The total cost of the juice bottles is 4j. The total cost of the oranges and juice bottles is $6.75.

Thus, the equation that represents the given information is: 4j + $2.71 = $6.75. Subtract $2.71 from both sides to get: 4j = $4.04. Divide both sides by 4 to get: j = $1.01.

Therefore, each juice bottle costs $1.01.

Step-by-step explanation:

Total cost = cost of a bag of oranges + cost of 4-pack juice bottles

$6.75=  $2.71 + (4 x jj)

$6.75 = $2.71 + 4jj

take similar terms: $6.75 - $2.71 = 4jj

Add similar terms: $4.04 = 4jj

Divide both sides of the equation by 4: jj =  $4.04 / 4=

jj = $1.01

A four-part spinner is spun once.

spinner with four parts labeled W, X, Y, and Z

List the sample space for the experiment.

S = {X, Y, Z}
S = {W, Z, Z}
S = {W, Y, Y, Z}
S = {W, X, Y, Z}

Answers

Answer:

the probability of each letter to be chosen is 1/4%.

S= {W, X, Y, Z}

Step-by-step explanation:

Is probably the answer S={W,X,Y,Z}

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.

The coordinate plane shows the positions of different places in a town. Each unit on the graph is equal to 1 block. Match the paths with their distances.

13 blocks
9 blocks
7 blocks
16 blocks
10 blocks

from school to the supermarket
from the park to the supermarket
to the baseball field
from home to the baseball field
from home to the park
to the supermarket

Answers

Answer:

a) 7 blocks

b) 16

c) 10

d) 13

The manager of fast food restaurant collected data to study the relationship between the number of employees working registers and the amount of time customers waited in line to order. He made a scatter plot of the data and credited a trend line with the equation y= -70x+300, where y is the total amount of time waited in seconds and x is the number of employees working registers.
1. Did the scatter plot of data positive, negative, or no association? Explain your reasoning.​
2. Maria went to the restaurant and waited 90 seconds to place her order. Use the trend line equation to predict how many employees were working.
3. Kiara went to the restaurant and waited 3.5 minutes. Use the trend line to predict how many employees are working.
4. Ashton walked into the restaurant and 4 employees are working registers. Use the trend line equation to predict how long he will wait to place his order.

Answers

Answer:

Step-by-step explanation: "no association because depending on how many people are working and how many people are coming in at the same tome"

Please help me ASAP thanks

Answers

They can buy 8!!


After taking away 2.75 from 98.75 they are left with exactly 96 dollars which you can divide by 12 to get 8
8
I don’t rlly feel like explaining mb

can anyone help me out with this?

Answers

Answer:

Q1-4 = Solutions are found in attachment; Q5 = 24; Q6 = 8; Q7 = 7; Q8 = 3; Q9 = 45; Q10 = 24; Q11 = 15; Q12 = 18; Q13 = 3, 6, 9, 12, 15; Q14 = 7, 14, 21, 28, 35; Q15 = 8, 16, 24, 32, 40

Step-by-step explanation:

Solution for 1 to 4 are shown in the graph in the attachment.

Bold = Answer

Equivalent fractions

5.

6/8 = x/32

32/8 = 4

x = 6 * 4 = 24

6.

4/6 = x/12

12/6 = 2

x = 4 * 2 = 8

7.

1/8 = x/56

56/8 = 7

x = 1 * 7 = 7

8.

9/12 = x/4

12/4 = 3

x = 9/3 = 3

9.

5/9 = 25/x

25 / 5 = 5

x = 9 * 5 = 45

10.

5/6 = 20/x

20 / 5 = 4

x = 6 * 4 = 24

11.

36/45 = 12/x

36/12 = 3

x = 45 / 3 = 15

12.

20/36 = 10/x

20/10 = 2

x = 36/2 = 18

Multiples

13.

3 * 1 = 3

3 * 2 = 6

3 * 3 = 9

3 * 4 = 12

3 * 5 = 15

3, 6, 9, 12, 15

14.

7 * 1 = 7

7 * 2 = 14

7 * 3 = 21

7 * 4 = 28

7 * 5 = 35

7, 14, 21, 28, 35

15.

8 * 1 = 8

8 * 2 = 16

8 * 3 = 24

8 * 4 = 32

8 * 5 = 40

8, 16, 24, 32, 40

1 of many ALEKS questions
(screenshot)

Answers

8/7 simplified is 1 1/7

I'm super confused about this

Answers

The answer should be n<-0.6 but I might be wrong
I think the answer is n<-0.6

Similar figures review 2

Answers

Answer:

a) 48.28 inches

b) 12.5

c) 7.2 cm

d) 16

Hope It Helps!

Please Mark Me Brainliest!

a) 48.28 inches

b) 12.5

c) 7.2 cm

d) 16

Angelina has taken 27 of the 36 exams she needs to take to become a nurse. What percent of the exams has she taken?

Answers

Answer:

Step-by-step explanation:

75

She has completed 75% of her exams

Which equation represents the graph?

A: y equals negative 2 x plus one half
B: y equals negative one-half x plus one half
C: y = −2x − 2
D: y equals negative one-half x minus 2

Answers

Answer:

D: y equals negative one-half x minus 2

Step-by-step explanation:

slope

THE ANSWER IS D !!!!!

Sid has a baseball cap collection. 65% of his caps have sports team symbols. If 26 of the caps have the team symbols, how many total caps does Sid have?

39
40
73
91

Answers

B. 40

As we know Sid has 26 Caps

we also know that 26 is 65% of total

so let total caps = x

to calculate x

we know that percent = (Values*100)/total Values.......... i

and here Value = 26 caps

percentage = 65

So we have

65 = (26*100)/x---------------- (As we know that per = fraction*100)..... from i

65x= 2600x = 2600/65x=40 caps

Hence Answer is 40

Learn more about percentages: https://brainly.com/question/24877689

B. 40 because the way I found it which was weird was I figured out which number had 26 out of 65%. Which is 40.

60+108b
I'm mad clueless:(

Answers

your answer would be: 168

Answer:

168

Step-by-step explanation:

I need the answers to all of them please :(

Answers

Answer:

2) 0.081

3) 0.741

4) 71.3

5) 0.0422

6) 79.9971

7) 0.00265

8)0.0935

Answer:

1 - 89.974

2 - 0.081

3 - 0.741

4 - 71.3

5 - 0.0422

6 - 79.9971

7 - 0.00265

8 - 0.0935

Describe the pros and the cons of using the standard form of a line to graph an equation.

Answers

Answer:

The standard form of a line is expressed as Ax + By = C, where A, B, and C are constants and x and y represent the variables. One advantage of using the standard form to graph a line is that it is relatively easy to determine the slope and y-intercept of the line from the constants A and B. This can be particularly useful when trying to analyze the behavior of the line.

Another advantage of using the standard form is that it allows you to easily determine the equation of the line when given a set of points. For example, if you are given the points (2,4) and (3,6), you can use the standard form to find the equation of the line that passes through these points by substituting the coordinates into the form and solving for the constants.

One potential disadvantage of using the standard form is that it can be more difficult to interpret the meaning of the constants A, B, and C in terms of the context of the problem. For example, if the line represents the cost of a product, it may be more intuitive to express the equation in terms of the variables x (the number of units) and y (the cost). In this case, it may be more useful to use the slope-intercept form of the equation, which is expressed as y = mx + b, where m is the slope and b is the y-intercept.

Step-by-step explanation:

https://www.math.net/standard-form

Step-by-step explanation:

I honestly think that - ' jphhendell13 ' is correct.

You have $30 to spend on in-app purchases for a game. Sets of extra lives cost $3 each, and bags of coins cost $5 each. You buy a total of 8 items in the game. How many sets of extra lives and bags of coins do you buy?

Answers

Answer: The answer is B which is 5 sets of Extra lives and 3 bags of coins

Step-by-step explanation:

1) Work out all the answers from a,b,c,d and b are exactly 30 dollars and 8 items.

2)I used trial and error due to the fact that there are 4 options.

Answer: hope this helps ♡

B) 5 sets of extra lives and 3 bags of coins

Step-by-step explanation:

Money = $30

A) 3 sets of extra lives = $9     5 bags of coins = $25      9+25 = 34  (34>30)

B) 5 sets of extra lives = $15     3 bags of coins = $15      15+15 = 30  (30=30)

A box 2 m by 4 m by 8 m is filled with cubes of volume 8 cm³. If these
cubes were lined up, how long a line would that be?

Answers

The total line length of cubes lined up would be approximately 1.6 x 10^7 cm.

To find the total line length of cubes lined up, we need to find the total number of cubes in the box and then multiply it by the side length of a cube.

We can find the total number of cubes in the box by dividing the volume of the box by the volume of a cube:

Volume of the box = 2 m * 4 m * 8 m = 64 m³

Volume of a cube = 8 cm³ = 8 x 10^-6 m³ (converting the cm³ to m³)

Number of cubes = 64 m³ / 8 x 10^-6 m³ = 8 x 10^6

Then we can multiply the total number of cubes with the side length of a cube to find the total line length of cubes lined up :

Therefore, Line Length = 8 x 10^6 * 8 cm

= 6.4 x 10^7 cm

= 1.6 x 10^7 cm.

Learn more about arithmetic at,

https://brainly.com/question/28369191

7y+5z-2y+z

grade 7 math

Answers

Answer:

Step-by-step explanation:

7y+5z-2y+z

Group the two y and the two z together

7y-2y = 5y

5z+z= 6z

(a variable with out a number is = to 1)

so it would be  5y+6z

Hope this helps

The answer would be 5y+6z.
The reason for this is because only like terms can be added and subtracted.
(7y-2y) and (5z+z)

is this right hurryyyyyyyyyy please

Answers

Answer:

its wrong

Step-by-step explanation:

cause first of all i have no i dea second of all it looks to hard for me

it’s correct good job!!

(465+235+286)-89 equals?

Answers

Pemdas means you have to do the parentheses first.
465+235+286=986
Then comes the subtraction
986-89=897

So the answer is 897

Answer: 897

Step-by-step explanation:

(465+235+286)-89= ?

(700 + 286)-89

986-89

897

In each equation, select an operation to make the equation true by making the operation happen where the question mark appears.



PLEASE HELP ME

Answers

Answer:
The first one is +
The second one is x (multiply)
The third (I am not sure)
Forth is a - (minus)
Fifth is a - (minus)
And last (I am not sure)
Sorry
What is the questions it's wroooooooooon

Can I please have help

Answers

The correct answer is 154°
the correct is 154* GIVE BRAINLIEST

plsss help meee i need my grade to go up

Answers

Answer:

First column:

E: 35

i :51

A: 168

Y: 18

T: 140

E: 7

P: 19

Step-by-step explanation:

I used order of operations / PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, and Subtraction), and plugged in the values for a, b, n, and m. For letter E, add and subtract the values first then divide, it's easier. That's all I got for now. I'll solve the rest and answer as soon as possible. :)

The phrase at the bottom ends up being HEWANTSTOWAKEUPOILY
so in order the answers are
First section 35, 51, 70, 18, 43, 7, 19
Second section 6, 60, 16, 20, 1, 41, 24
Third section 11, 72, 8, 30, 10, 0

What is the solution to this system of equations? What is x & y??

Answers

Answer: (2,3)

Step-by-step explanation:

solve by setting both equations equal to each other

1/2x+2=x+1 and then solve for x to get x=2

then plug x back into the equation to get y=3

the answer would be (2/3)

what is 3/4 times (4,4) also what is 3/4 times (8,4)

Answers

Answer:

1.  (3,3)

2. (6,3)

Step-by-step explanation:

1.  [tex]\frac{3}{4}[/tex] × (4,4)

step 1. divide by the denominator

4 ÷ 4 = 1

step 2. multiply by the numerator

1 × 3 = 3

2.  [tex]\frac{3}{4}[/tex] × (8,4)

step 1. divide by the denominator

8 ÷ 4 = 2

step 2. multiply by the numerator

2 × 3 = 6

Hope this helps! ( * ^▽^)/

1) 12/16 or 3/4 simplified


Explanation—3x4 is 12 4x4 is 16 (12/16) to simplify 12 and 16 can both be divided by 4 so (3/4)


2) 24/16 or 1 1/2 simplified






Explanation— 3x8=24 4x4=16 (24/16)
These numbers can both be divided by 4 so 6/4 then create a mixed number to get 4 1/2 or 4.5!

Is y = 6x - 4 proportional

Answers

It’s not cuz if we substitute 0 for x y wont be
Y=6x-4 is not proportional
Other Questions
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