Mathematics Middle School

A cyclist accelerates from rest at a rate of 7.0 m/s2. How long will it take the cyclist to reach a speed of 18 m/s?
(Its really a subject for science, but I didn't want to put the wrong thing)

Answers

Answer 1

9514 1404 393

Answer:

  2 4/7 seconds

Step-by-step explanation:

Velocity and (constant) acceleration are related by ...

  v = at

Filling in the numbers, we can solve for t:

  18 m/s = (7 m/s²)·t

  t = (18 m/s)/(7 m/s²) = (18/7) s = 2 4/7 s

It takes the cyclist 2 4/7 seconds (about 2.57 seconds) to reach 18 m/s.

_____

Comment on the subject

Problems involving position and its derivatives can reasonably be posted in the Math section. When energy or mass get involved, the Physics section is a better place. The relevant formulas for those are not always covered in algebra classes.

Answer 2
2 4/7 hope this helps.

Related Questions

To read her book report book, Jodi needs to read 365 pages in 10 days. Choose the correct equation and answer for this situation.

Answers

Answer:

Step-by-step explanation:

365/10 = 36.5 pages

i belibe this shoud ber it

Answer: The answer is 365/10=365/10

Step-by-step explanation:

you don’t want negative numbers so you divide 365 from 10 = 36 5/10=36 1/2

Hope this helps :)

Please help and show work thank you!

Answers

Answer:

1)-0.65    2) 28.8   3) 747.6

Step-by-step explanation:

divide the numerator (-13) and the denominator (20)32 x 90= 2880, divide 2880 by 100 equals to 28.8

    3. multiply 12 by 62.3

I hope this helps!

The is tkdb rndnrndnrndnrjdbr r

What purpose do the sanitation systems serve?

Answers

Answer:

Sanitation systems are a combination of different functional units that together allow managing and reusing or disposing the different waste flows from households, institutions, agriculture or industries in order to protect people and the environment.

Answer:

To collect municipal solid waste and transport it to a solid waste treatment facility, such as a landfill, recycling center or transfer station.

Zander bought 8 tickets for a total cost of $104. He had used a coupon code to get $3 off each ticket. Let t be the original cost of each ticket. Which of the following equations correctly represents this situation.
1. 3(t-8)=104
2.8t-3=104
3.8(t-3)=104
4.3t-8=104

Answers

The answer is the 1st one

Answer:

3rd answer

Step-by-step explanation:

Subtract three from each ticket than multiply that by the eight tickets ur buying. Hope this helps!

i need help on this one aswell if anyone wants to help me.

Answers

The equation that represents the linear relationship in slope-intercept form is: y = -4.75x + 211.25

To find the equation of the linear relationship in slope-intercept form, we need to determine the slope (m) and the y-intercept (b).

First, let's calculate the slope (m) using the formula:

m = (change in y) / (change in x)

For the given data points:

(x1, y1) = (25, 92.5)

(x2, y2) = (35, 45)

m = (45 - 92.5) / (35 - 25) = -47.5 / 10 = -4.75

Now, let's find the y-intercept (b) using the formula:

b = y - mx

Using the point (x1, y1):

[tex]b = 92.5 - (-4.75 \times 25) = 92.5 + 118.75 = 211.25[/tex]

This means that for each unit increase in x, the y-value decreases by 4.75 units. The y-intercept of 211.25 indicates that when x is 0, the corresponding y-value is 211.25.

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Write an equivalent expression to -3(6x^2-10x+9)+8x^2(3x+4)

Answers

Answer:

Step-by-step explanation: hope this help :)

Answer: 24x^3 + 14x^2 + 30x - 27

-3(6x^2-10x+9)+8x^2(3x+4)

Distribute the -3.

-18x^2+30x-27+8x^2(3x+4)

Distribute the 8x^2.

-18x^2+30x-27+24x^3+32x^2

Combine Like Terms and Rearrange.

24x^3 + 14x^2 + 30x - 27





Solve the question below

Answers

The answer is $130!

Explanation:


Emma borrows $2,500 from her bank to buy a used car. The loan has a 5.4% annual simple interest rate. If it takes Emma 9 months to pay back the loan, how much interest will she be paying?

A. $101.25

B. $2,601.25

C. $3,715.00

D. $10,125.00

Answers

Answer:

$292.78

Step-by-step explanation:

Add the annual interest to the loan. Then divide the total by 9 to get the monthly cost.

Answer:

its c

Step-by-step explanation:

its c because you add 2,500 + 5.4% = 2,635 than it adds 135 to 2,500.

You multiply 135 x 9 = 1215 than you add that than that = 3715.

QUICK I NEED HELP!!
Explain the difference between finding the volume of this right rectangular prism with whole unit cubes and with 1/2 -unit cubes.

Answers

The explanation of the difference between finding the volume of this right rectangular prism with whole unit cubes and with 1/2-unit cubes is given below:

Finding volume by multiplyingFinding volume with unit cubesYou take base one and multiply it by the number it is beside. then multiply by the height

What is the Volume of an object?

The volume of an object is the amount of space it fills. Large volumes are measured in cubic meters (m3).

Hence, the explanation for the calculation of the volume is given above.

Read more about volume here:

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Which graph shows a dilation of the rectangle with a scale factor of 1/2?

Answers

Answer:

theres only one graph uploaded??????

Step-by-step explanation:

helppp im soo confused

Answers

Answer:

a AND d

Step-by-step explanation:

option - a

and

Option-  d

I hope im right !

Answer:

A, D

Step-by-step explanation:ad

A. x = 3

B. x = 3/4

C. x = -9/2

D. x = 3

Sidenote: Hope this helps! :D

Is the given value a solution to the equation?


3(y + 8) = 2y − 6


y = 30

Answers

°

the answer to this question is y = -30

4 students each write an equation which student's equation is true

Answers

Answer:

yes 3

Step-by-step explanation:

thnks

Answer:

c

Step-by-step explanation:

-2/3 divided by (-1/2)

Answers

Answer:

4/3

Step-by-step explanation:

multiply by the reciprocal

[tex]-\frac{2}{3}[/tex] × [tex]-\frac{2}{1}[/tex] = [tex]\frac{4}{3}[/tex]

Answer: +4/3

Explanation: It's important to understand that dividing by a fraction

means the same thing as multiplying by the reciprocal of that fraction.

In other words, we can simply change the division symbol

to multiplication and flip the second fraction.

So we can rewrite this problem as -2/3 · -2/1.

We can't cross-cancel anything.

Before multiplying, take note of your signs.

A negative times a negative is a positive,

so we know that our answer will be positive.

Multiplying across the numerators and denominators, we have +4/3.

What is 5260 written in lowest terms?

Answers

I’m guessing that the answer would be 52.6

choose which word should go to

Answers

First one Because more people in it

Answer:

Power throne

Step-by-step explanation:

It has the most green bars, meaning more wizards.

Please help due today 30 points {Marked brainlist} ONLY EVENS

Answers

Answer:

did you try to figure it out

Step-by-step explanation:

Answer:

2) x=-15
4) x=-9
6) x=1
8) x=-5
10) x=-2
12) x=10
14) x=6
16)x=4.9
18) $10.75 per shirt
20) 53 and 51

A tank of fish has 4 goldfish. 8 downfish, 7 stickerfish, and I minnow. Dylan is cleaning the fish tank and will
take out one fish, not replace it, then take out a second fish. What is the probability that both will be clownfish?

Answers

Answer:

The first one 2/5

Step-by-step explanation:

Is it me or this look so easy

Q: The data set, {85, 70, 91, 73}, represents Connie's test scores for the first four tests of the semester. Connie scored an 75 on the fifth test.

What impact does the 75 have on the mean test score?

Select from the drop-down menu to correctly complete the statement.

The 75 caused the mean test score to (A. Decrease B. Increase C. Stay The same)
THANKSSS! Have a great rest of your day!

Answers

Answer:

A. decrease

Step-by-step explanation:

The mean average number without the fifth test is 79.75 so her score went down. Hope this helped!

Answer:

A. Decrease

Step-by-step explanation:

Have a fantastic day :)

Ben baked brownies in the brownie pan shown below. Each day, he is going to eat 30 square centimeters of brownie from the pan.
For how many days does Ben have brownies before they run out? 30days

Answers

Answer: 30 cm/ day

Step-by-step explanation:

theres no picture so thats a bad thing

Two times one number added to three times a second number is 21. Five times the first number added to three times the second is 30. What are the numbers?

Answers

Answer:

d. 3 and 5

Step-by-step explanation:

the first number will be x and the second number will be y

2x + 3y = 21

2(3) + 3(5) = 21

6 + 15 = 21

5x + 3y = 30

5(3) + 3(5) = 30

15 + 15 = 30

Answer:

The answer is D

Step-by-step explanation:

NEED HELP!!!!!!!!!!! I WILL MARK YOU BRAINLYIST

Answers

Answer:

Its the red set

I did the test

Answer:

Step-by-step explanation:

igneous-Metamorphic

Sedimentary-metamorphic

Metamorphic rocks underground melt to become magma. When a volcano erupts, magma flows out of it. (When magma is on the earth's surface, it is called lava.) Therefore, the rocks must get heated to turn into metamorphic

During two games, the number of points scored by a basketball team increased from 75 to 87. By what percentage did the number of points scored increase?
A - 12%
B - 14%
C - 86%
D - 16%

Answers

Answer:

D 16% increase

Step-by-step explanation:

This is ez

just did this stuff in pre algebra

The solution is Option D.

The percentage of increase in number of points is 16 %

What is Percentage?

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %

Given data ,

The number of points scored by the basketball team = 75

The increased points scored by the basketball team = 87

The increase in points =

increased points scored by the basketball team - number of points scored by the basketball team

The increase in points = 87 - 75

                                      = 12 points

So , the percentage increase in points = ( increase in points / number of points scored by the basketball team ) x 100

The percentage increase in points = ( 12 / 75 ) x 100

                                                          = 0.16 x 100

                                                          = 16 %

Therefore , the percentage increase is 16 %

Hence , the percentage of increase in number of points is 16 %

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I just wanted to see if I got my answers correct, please explain your answer so I can check up with mine.

Answers

B because you need to do 2/6 which is the probability of getting a number above 4 times 1/2 the probability of getting heads. 2/6 x 1/2 = 2/12 = 1/2
Hxchdisiijfifofi. 828727272Yes

pls pls pls answer/question

Answers

Answer:

31 - 12=p

p= 19

Step-by-step explanation:

Answer 18 I believe

Step-by-step explanation:

Given the plane DGF in the diagram, which points are collinear?

1. H, G, and D
2. G, E, and F
3. D, E, and F
4. G, D, and E

Answers

Answer: Yup ⬆️

Explanation: because there collinear

C. Points D,E and F are co-linear

What are co-linear points ?

When two or more than two points lie on the same line they are called co-linear points.Co-linear points can be on any subsets of a line they can be in a line or in a line segment or they can be in a ray lying onto a single line or line segment or a ray in count of two or more than two.

According to the given question

The plane DFG has four points D,E,F,G but G is not in the same line  as DEF

Here the points D,E and F are co-linear because they line on the same line on the given 2D plane.

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Can someone help ASAP

Answers

Es hora de comer !!!!

Can someone just help me!

Answers

Answer: C

Step-by-step explanation: use calculator soup, you can do anything with fractions

Todd swam 10 laps around the pool and walked on the treadmill a total of 5.2 miles. It took him 2.3 minutes to swim each lap and 45.4 minutes to work on the treadmill. How long did it take him to swim and walk?

Answers

Answer:

Step-by-step explanation:

Was so she just wanted

Answer:

23 minutes in the pool

Step-by-step explanation:

Cassandra works at the local pizza parlor. Her earnings per day can be determined using 1.17 + h^2, where h is the number of hours she works. If Cassandra works 3 1/2 hours on Tuesday, how much money will she earn on that shift?

Answers

Answer:

13.42 dollars

Step-by-step explanation:

subsitute h with her hours (3 1/2) and we get

1.17 + 3.5^2

1.17 + 12.25

13.42

hope this helps!

13.42 will be the answer
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