A group of students is timed while sprinting 100 meters. Each student’s speed can be found by dividing 100 m by their time. Is each statement true or false?

Select the correct choice for each statement then explain your reasoning.

1. Speed is a function of time.
2. Time is a function of distance.
3. Speed is a function of number of students racing.
4. Time is a function of speed.

Answer:

The true statements are (a) and (d)

Step-by-step explanation:

(a). Speed is a function of time : As seen from equation (1) Speed of the students varies according to the value of time. So, This a true statement.

(b). Time is a function of distance : Distance is not varying in the equation (1), it is fixed to be 100. So, time is not a function of distance because here the distance is made constant. So, This is false statement.

(c). Speed is a function of number of students racing : Speed is not depending on the number of students racing so sped is independent of the number of the students racing. Therefore, Speed is not a function of number of students racing. This is False statement.

(d). Time is a function of speed : As seen from equation (1) Time of the students varies according to the value of their speed. So, This a true statement.

The true statements are (a) and (d).

Find the amount of sales tax if the sales tax rate is 5% and the cost of the winter coat is $40. Hint: this question is only asking for the sales tax.

Which of the following best matches a part of a living cell with the function it performs? (1 point)
Vacuole: directs all of the cell's activities
Cytoplasm: directs all of the cell's activities
Vacuole: stores food, water, nutrients, and waste
Cytoplasm: stores food, water, nutrients, and waste

Students in a political science course were asked to describe their politics as "Liberal", "Moderate", or "Conservative." Here are the results: Politics Liberal Moderate Conservative Total Female 40 34 14 88 Male 48 50 26 124 Total 88 84 40 212 Given that the student is male what is the probability that he considers himself to be a "Liberal"? Round your answer to three decimal places if necessary. a. 0.226 c. 0.387 b. 0.415 d. 0.455 Please select the best answer from the choices provided A B C D

The intersection of parallel lines b and c and transversal line d form several special angle relationships, as shown in the image below.



Which pairs of angles are vertical angles? Select all that apply.

2 and 3
5 and 8
7 and 2
4 and 5

Scatter plots

pls actually help

A net for a rectangular prism with dimensions of 1 centimeter, 2 centimeters, and 5 centimeters is given.

What is the surface area of this rectangular prism?

Enter your answer in the box.

cm²
The figure contains a net of a solid. The net is made up of 6 rectangles. The first rectangle has a length of 5 centimeters and a width of 2 centimeters. Each side of this rectangle shares a side with one other rectangle. The rectangles above it and below it each have a length of 5 centimeters and a width of 1 centimeter. The rectangles to its left and right each have a length of 1 centimeter and a width of 2 centimeters. The sixth rectangle shares its bottom side with the top side of the upper 5 centimeter by 1 centimeter rectangle. The length of the sixth rectangle is 5 centimeters, and its width is 2 centimeters.

i saved the best for last :]

2[tex]^{2}[/tex] + 5 + 50 ÷ 2(5)

So, this is hard for me ;(( But can you guys help me???

how is water vapor different from other gases that make up air?

y'all better hurry up, I don't got no time for this TvT

A restaurant customer left $1.35 as a tip. The tax was 4% and the tip was 15% of the after tax cost.....

The graph shows the number of sprays an automatic air freshener dispenses, y, in x minutes

Which expression can be used to calculate the rate per minute at which the air freshener dispenses sprays?

A) 30 over 6
B) 24 over 30
C) 30 over 24
D) 6 over 30

Last year there were 205 ducks living on the pond. This year there are 20% more ducks living on the pond. How many ducks are living on the pond this year? *

Solve the equations:
1. 9x - 5 = 5x + 7
2. 8x - 2 = x - 16
3. 8x + 5 = 2x + 23
4. 2x + 8 = 5x + 20
5. 5(2x + 6) = 3x - 5

Plz help me plz I give you brainliest

The initial to rent a bike is $5. Each hour the bike is rented costed $2.25. Liz is going to rent a bike and can spend at most $11.75. Write and solve an inequlity to find how long she can rent the bike.

Please help ASAP <3 Correct answer gets brainliest :3

I need to find the area, what is it?

Which is an equivalent expression of:
−2(5r+ 3) + 9r?
A) −19r – 3
B) −10r – 6
C) −10r + 3
D) −r– 6

100 points, (1-7, I need help with all of them please, you can explain stuff too)
1. "The number of years from the start of the Great Depression to the first presidential election of Richard Nixon is six years less than three times Raul's age. Nixon's first presidential election happened 39 years after the Great Depression. Using the given information, write an equation to find Raul's age, r."

2. "Rewrite the equation from part A by factoring the side that contains the variable r."

3. "Solve the two previous equations for r. What value does each equation give for Raul's age. Are the two values the same?"

4. "Raul's grandfather is Miguel, and Raul's sister is Paula. Raul's age is the same as his grandfather's age minus 60 times the age of his sister. Miguel is 65 years old. Using the results from question 2, write an equation to find Paula's age, p, in years."

5. "Rewrite the equation from question 4 by factoring the side that contains the varible p."

6. "Solve the equation for p to find Paula's age. Express her age in years as a fraction."

7. "How many months old is Paula?"

Please help. Will give brainliest

A 150- pound person burns 5.1 calories per minute when walking at a speed of 4-miles per hour. While walking, this person easts a snack that has 50 calories. This snack subtracts from the calories burned while walking. a. How long must the person walk at this speed to burn at least 180 calories? b. Describe when values the person could change so the amount of time spent walking would be less. Please help me if you can

I will mark best answer!!

a florist sells a dozen roses for $29.88. what is the cost of 1 rose

Can someone help me find the area of this thx

Pls help worth 20 pts

Describe the graph of the equation y = 0. Is the equation a function?


A. horizontal line; no

B. horizontal line; yes

C. vertical line; no

D. vertical line; yes

What is the length of segment PQ in units?

An apartment building that is 51 feet tall casts a 90 foot shadow. At the same time, a tree casts a shadow that is 48 feet long. How tall is the tree?

please help ill give brainliest