An experiment was conducted by some students to explore the nature of the relationship between a person's heart rate (measured in beats per minute) and the frequency at which that person stepped up and down on steps of various heights. Three rates of stepping and two different step heights were used. A subject performed the activity (stepping at one of the three stepping rates at one of the two possible heights) for three minutes. Heart rate was then measured at the end of this period. The variables "stepping rate" and "step height" are the

A. factors.
B. levels.
C. controls.
D. units.
E. response variables.

Answers

Answer 1

Answer:

A. factors.

Step-by-step explanation:

The correct option is - A. factors.

Reason -

The variables "stepping rate" and "step height" are the factors because a activity is performed in which stepping at one of the three stepping rates at one of the two possible heights for three minutes.

The activity is based on both the variables stepping rate and step height.


Related Questions

Can somebody help with question 5.

Answers

17 i think
wxh/v=L
hope this help

Simplify the expression: 20x − 6 − 13x + 19
A. 13x − 6

B. 7x + 13

C. 5x − 7

D. 10x + 11

Answers

Answer: B

Step-by-step explanation:

20x-13x-6+19

=7x+13

Find the equation of a line that is perpendicular to 4x+6y=1 that has a greater y intercept compared to 2x+3y=18



Answers

Answer:

4y = 6x + 40

Step-by-step explanation:

The general equation of a straight line is y = mx + b

m is the slope and b is the y-intercept

let us write both equations in this form;

we have this as;

6y = -4x + 1

y = -4x/6 + 1/6

and;

2x + 3y = 18

3y = -2x + 18

y = -2x/3 + 6

So firstly we want to find an equation that is perpendicular to the first

When two lines are perpendicular, their slopes has a product of -1

The slope of the first line is -4/6

let the slope of the line we want be m

As per they are perpendicular;

-4/6 * m = -1

-4m/6 = -1

-4m = -6

m = 6/4

So now, we want the y-intercept greater than that of the second equation which is a y-intercept of 6

we can choose 10

and we have the equation as:

y = 6x/4 + 10

multiply through by 4

4y = 6x + 40

What is the equation of the line shown in the graph?

Answers

Answer:

-1/5

Step-by-step explanation:

I couldn't tell whether or not your question was asking for either the slope intercept form or just the slope.

Your answer would be: y = -1/5x + 3   [if your question is asking for the slope intercept form]

OR

Your answer would be: -1/5   [if your question is asking for just the slope]

3a=a+36 find the value of a

Answers

Answer:

a=18

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

Step 1: Write out your equation

3a=a+36

Step 2: Subtract a on both sides

2a=36

Step 3: Divide by 2 on both sides

a=18

Hope I helped

A CD usually sells for $18.00. If the CD is 10% off, and sales tax is 7%, what is the total price of the CD, including tax?
A. $18.30
B. $17.33
C. $17.46
D. $17.50

Answers

Answer:

b

Step-by-step explanation:

Which of the following units is most likely to be used to measure the
length of a tennis court?
A. millimeters
C. feet
B. centimeters
D. kilograms

Answers

Feet so the answer is c

Three friends are sharing 4 cups of lemonade. If they share the lemonade equally, how many cups will each friend get?

Answers

Answer:

3/4 of a cup or .75 of a cup

Step-by-step explanation:

1.3 bc you divide 4 by 3

BRAINLY TO WHOEVER CAN HELP ASAP

Answers

Answer:

D

Step-by-step explanation:

Dilating something makes it become bigger. Leading to a larger area and perimeter

help help help help help
A=√18-√8+√50
Write A in the form m√2 where m is an integer​

Answers

Answer:

6√2

Step-by-step explanation:

A=3√2-2√2+5√2

A=6√2

Answer:

6√2

Step-by-step explanation:

A=√18-√8+√50 = √9√2 - √4√2 + √2√25, or A = (√2)(3 - 2 + 5) = 6√2

which equation represents the tape diagram?

Answers

Answer:

25= 10+w

Step-by-step explanation:

Ten and w add up to 25 so yeah

Answer:

A and C

Step-by-step explanation:

25-w=10

and

25-10=w

I dont know why its both but it is

A score of at least 92 on the test is considered an A.

Answers

Answer:

Yes that is correct. 89 and below. Is a B. 90 or higher is a A.

Step-by-step explanation:

what is the slope of the line below?

Answers

Answer:

1/2

Step-by-step explanation:

To find slope just compare two points on the graph and then put them into fraction form like so y/x

Rachel makes spirit bows for game day. She uses 48 feet of ribbon for 12 bows. If she uses the same amount of ribbon for each bow, how much ribbon would she need for 10 bows?

Answers

Answer:

40 ribbon

Step-by-step explanation:

We need to idenify the ratio which is 1 bow to 4 ribbons, so we times that by ten and we get 10:40 so its 40 ribbons. (Hope it helps)

The amount of ribbon she needs for 10 bows will be 40 feet.

What will be the quantity of ribbons for 10 rows?

It is given that

As she uses 48 feet of ribbon for 12 bows.

So for one bow, the ribbon will be

[tex]\dfrac{48}{12} =4[/tex]

So now if the size of the ribbon should be the same for the new 10 bows then

Size =[tex]10\times 4=40\ feet[/tex]

Thus the amount of ribbon she needs for 10 bows will be 40 feet

To know more about fractions follow

https://brainly.com/question/78672

The ratio of boys to girls in a class is 3 to 5. There are 35 boys in the class. what is the total number of students

Answers

there are 51 students in total
3:5, 6:10, 9:15, 12:20, 15:25, 18:30, 21:35
21+35= 51

Do 5/15 and 4/10 form a proportion?
Explain why or why not.

Answers

Answer:

No because they are not equal to each other.

Step-by-step explanation:

We can simplify 5/15=4/10 to this

1/3=2/5 They are not equal, and therefore don't form a proportion.

2x2 – 5xy – 6 + 4x2 – 3xy + 1 – x2y

Answers

Answer:

− x 2 y − 8 x y + 6 x 2 −5

Step-by-step explanation:

was i support to simplify? bc that's what i did

Write a positive or negative integer that represents the situation. You earn $15 raking leaves. The integer represents the situation.

Answers

Answer:

+$15

Step-by-step explanation:

Amount earned for raking leaves = $15

Representing the amount earned above. As a positive or negative integer will depend on what the money is used for or stands for.

Amount earned for working adds to one's wealth while expenses will be represented as negative as it decreases the amout one has ;

Hence, integer ; +$15

This is my question for now

Answers

Answer:

V = 540cm3 (E)

Step-by-step explanation:

Area of a square:

A = a2

Perimeter of a Square

P = 4a

Polygon diagonals of a square

q = √(2a2) = a√2

Side of a Square

a = √A

a = P/4

a = q / √2

Square Calculations

Calculate q, P, A | Given a

Given the length of a side calculate the diagonal, area and perimeter

q = a√2

A = a2

P = 4a

Calculate a, P, A | Given q

Given the diagonal length calculate the side length, perimeter, and area

a = q / √2

P = 4a

A = a2

Calculate a, q, A | Given P

Given the perimeter calculate the side length, diagonal, and area

a = P/4

q = a√2

A = a2

Calculate a, q, P | Given A

Given the area calculate the length of the sides, diagonal, and the perimeter

a = √A

q = a√2

P = 4a

x + 8 > 10 plss help

Answers

Answer:x=2

Step-by-step explanation:8x2=16 and 16 is greater than 10.. hope this helps and gets brainliest

Answer:

x > 2

Step-by-step explanation:

Given

x + 8 > 10 ( subtract 8 from both sides )

x > 2

Alternate interior angles are always congruent. TRUE OR FALSE

Answers

Answer:

false

Step-by-step explanation:

Answer:

False.

Step-by-step explanation:

Alternate interior angles are congruent only when the two lines intercepted are parallel.

Write this word sentence as an equation. 82 is the difference of a number b and 24

Answers

Answer:

106 - 24 = 82

Step-by-step explanation:

b = 106, solve 106 - 24 and you get 82.

Hope this helped.

Answer:

b/24=82

Step-by-step explanation:

Since the difference of an equation is the outcome of division we place 82 as the answer.  

Also, since 82 is greater than 24 we can assume that the variable "b" is larger than both 82 and 24.

Please answer I will mark brainliest

Answers

Answer:

Should be 63 degrees

Step-by-step explanation:

I can't tell if that's one of your options.

Two chords, AC and DE, intersect inside of circle O at point X. AX=15 cm, CX= 12 cm, and EX= 21 cm. Find DE​

Answers

Answer:

Do you have a picture or something?

Step-by-step explanation:

Since multiplication is implied algebra we often don't need to actually write the times symbol ‘×'. Re-write this algebraic equation without the times symbol. a × b = 4 × c

Answers

Answer:

ab=4c

Step-by-step explanation:

Since a and b are being multiplied, we can just right ab. Since 4 and c are being multiplied, we ca just right 4c.

Answer:

ab=4c

Step-by-step explanation:

Basically, if you see any variables that are together like that or numbers side by side with letters, it means it's just being multiplied! This doesn't however, work with numbers next to numbers. So for example:

Say you have a x b = 5 x 5c

It would be ab = 5 x 5c Because only letters get put next to each other. That's really the only way I know how to explain it. Have a great day and good luck!

Show all your work. Simplify the expression: 2x + 5 - 6x​

Answers

Answer: =−4x+5

Step-by-step explanation: Hope this help :D

Answer:

-4x+5

Step-by-step explanation:

You have to add like terms together to simplify it.

-6x+2x=-4x

3s+2t−3 =c
−7s−5t =4

Answers

Answer:

c=

−4

3

s−t+

−4

3

Step-by-step explanation:

Let's solve for c.

3s+2t−3c−7s−5t=4

Step 1: Add 4s to both sides.

−3c−4s−3t+4s=4+4s

−3c−3t=4s+4

Step 2: Add 3t to both sides.

−3c−3t+3t=4s+4+3t

−3c=4s+3t+4

Step 3: Divide both sides by -3.

−3c

−3

=

4s+3t+4

−3

c=

−4

3

s−t+

−4

3

Please answer correctly !!!!!!!!! Will mark Brianliest !!!!!!!!!!!!

Answers

Line NM is 9 and the measure of angle MLN is 58 degrees. This is because both triangles are equal in length, size, and angle measures. The triangle to the right is just rotated and reflected.
Since the triangle is congruent the angles equal each other.
Angles:
P=N
Q=M
R=L
Which means line segment NM is equal to PQ (9 units)
Angle MLN is equal to angle QRP (58 degrees)

I GOT A FAKE ANSWER ON THE LAST ONE SO PLEASE HELP FOR REAL NOT FOR THE POINTS
This is your chance to demonstrate your basketball skills! You have been chosen to participate in a paper-ball throwing contest.
Directions:
1. Use the scrap paper to make 10 paper balls per group. (Wad the paper balls up tightly so they are easier to aim.)
2. Place a trash can (or other large container) 5 feet away.
3. Predict how many paper balls you will be able to get into the basket. Type your prediction.
4. Type your results as a fraction.
5. Type your results as a decimal.

Answers

Answer: 3/5 or 0.6

Step-by-step explanation: It would take 2 shots for me to fine tune the force I need to get a perfect shot.  If you divide 3 by 5 you get 0.6.

Milton purchases a 7-gallon aquarium for his bedroom. To fill the aquarium with water, he uses a container with a capacity of 1 quart.

How many times will Milton fill and empty the container before the aquarium is full?

Milton will fill and empty the container __ times.

Answers

The answer is 28 times
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