Please Hurry !!

The speed s (in miles per hour of a car driving on wet asphalt can be given by s = 3 square root d, where d is the stopping distance (in feet). What is the approximate stopping distance of a car traveling 80 miles per hour? Round your answer to the nearest hundredth.

Answers

Answer 1

Answer:

d = 711 miles

Step-by-step explanation:

The speed s of the car is given by :

[tex]s=3\sqrt{d}[/tex] ...(1)

Where

d is the stopping distance

We need to find the stopping distance of a car travelling at 80 mph.

Rearranging equation (1) for d.

[tex]s^2=9d\\\\d=\dfrac{s^2}{9}\\\\d=\dfrac{80^2}{9}\\\\d=711.1\ miles[/tex]

or

d = 711 miles

So, the required stopping distance is 711 miles.


Related Questions

Are the ratios 2:4 and 5:10 equivalent?

Answers

Answer: Yes they are

Yes, they are because when you simplify both of them, they both give you 1:2 which proves they are equivalent.

2:4-->1:2

5:10-->1:2

Hope this helps you!

Answer:

Yes they are

Step-by-step explanation:

i
x+2y=-1
y=-3x - 8
Help please

Answers

Answer:

x= -3 y =1

Step-by-step explanation:

Someone help me with this question

Answers

Answer: Yes, when they each but 4 shirts they will both have a total of 129$

Step-by-step explanation:

The volume of the cylinder is 84 pi inches squared What can be concluded about the volume of the cone? Check all that apply.
The volume of the cone is One-third the volume of the cylinder.
The volume of the cylinder is 2 times the volume of the cone.
The volume of the cone is less than the volume of the cylinder.
The expression 84 pi over 3 finds the volume of the cone.
The expression 84 pi over 2 finds the volume of the cone.

Answers

The correct statements about the volume of the cone are:

- The volume of the cone is One-third the volume of the cylinder.

- The expression 84 pi over 3 finds the volume of the cone.

- The volume of the cone is less than the volume of the cylinder.

What is the volume of cylinder?

[tex]V=\pi\times r^2\times h[/tex]

where 'r' is the radius of the base of the cylinder and 'h' is height of the cylinder

What is the volume of the cone?[tex]V=\pi\times r^2\times \frac{h}{3}[/tex]

where 'r' is the radius of the base of the cone and 'h' is height of the cone

For given example,

The volume of the cylinder is 84 pi inches cubed.

Let [tex]V_1[/tex] represents the volume of the cylinder.

[tex]V_1=84~~cu.in.[/tex]

Using the formula of the volume of the cylinder,

[tex]V_1=\pi\times r^2\times h[/tex]

where 'r' is the radius of the base of the cylinder and 'h' is height of the cylinder

Let [tex]V_2[/tex] be the volume of the cone.

Assume that the base radius 'r' and height 'h' of the cone and the cylinder are equal.

Using the formula of the volume of the cone,

[tex]\Rightarrow V_2=\pi\times r^2\times \frac{h}{3}\\\\\Rightarrow V_2=\frac{1}{3}\times( \pi\times r^2\times h) \\\\\Rightarrow V_2=\frac{1}{3}\times V_1[/tex]

This means, the volume of the cone is One-third the volume of the cylinder.

[tex]\Rightarrow V2=\frac{1}{3}\times 84[/tex]

This means, the expression 84 pi over 3 finds the volume of the cone.

[tex]\Rightarrow V_2=28~~cu.in.\pi \\\\\Rightarrow V_2 < V_1[/tex]

This means, the volume of the cone is less than the volume of the cylinder.

Therefore, the correct statements about the volume of the cone are:

- The volume of the cone is One-third the volume of the cylinder.

- The expression 84 pi over 3 finds the volume of the cone.

- The volume of the cone is less than the volume of the cylinder.

Learn more about the volume of the cylinder and the volume of the cone here:

https://brainly.com/question/16007458

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This is supposed to be a easy math assignment but I don’t pay attention in class so yeah any help is great!

Answers

Answer:

2(n)+9

Step-by-step explanation:

N is 9 btw

Plz help me with this!??????

Answers

Answer:

X-290

X=70

Step-by-step explanation:

which term is a perfect square of the root 3x4?

Answers

Answer:

2√3

Step-by-step explanation:

√3x4 = √12 = 2√3

Answer:

9x^8

Step-by-step explanation:

good luck!!

Please help y’all I need this Rn

Answers

I can’t see you the picture provided

George bought 7 quarts of cleaning fluid: x quarts at $3.00 per quart & y quarts at $2.00 per quart. Find x & y if the total cost was $16.00. First type the equation for the total cost. Now, type the equation for the cost of each

Answers

Answer:

3x + 2y = 16

x = 2 , y = 5

Step-by-step explanation:

Given that George bought x quarts at $3.00 per quart & y quarts at $2.00 per quart and he bought 7 quarts for $16.00

Considering the total cost

3x + 2y = 16

For the cost of each

x + y = 7

solving the 2 equations simultaneously be substitution

x = 7 - y

3(7 - y) + 2y = 16

21 - 3y + 2y = 16

-3y + 2y = 16 - 21

-y = - 5

Divide both sides by -1

y = 5

x = 7 -y

x = 7 - 5

= 2

this question has still not been answered people just want points

Answers

Answer:

t= 41.2 minutes

Step-by-step explanation:

[tex]16=290(0.5)^{\frac{t}{10} }[/tex]

Divide by 290 to get the exponential expression alone

[tex]\frac{16}{290} \\\frac{8}{145}=(.0.5)^{t/10}[/tex]

Use Logs to solve

[tex]x=a^{y}[/tex] is equal to [tex]y=log_{a} x[/tex]

[tex]\frac{t}{10} =log_{0.5} \frac{8}{145}[/tex]  (put in calculator)

[tex]\frac{t}{10} = 4.18[/tex]

t= 41.2 minutes

This is due today PLSS help!

Answers

Answer: sorry I dont know!

Step-by-step explanation:

What is the area of the trapezoid?

Answers

Answer:

256 m^2

Step-by-step explanation:

An aluminum cube measures 8 cm on
each edge. Aluminum weighs 2.7 grams
per cubic centimeter. How much does
the cube weigh?
Please help fast this is due in the morning

Answers

Answer: 1380 g

Step-by-step explanation: volume of cube is 8 ·8 · 8 cm³ = 512 cm³.

Weight m = density × volume = 2.7 g/cm³ x 512 cm³= 1382.4 g

Les is measuring the border of her bulletin

board. She measures around the entire outside

of the bulletin board and finds the distance is

32 units.

Which measurement does 32 units

represent?

Choose 1 answer:

^

Perimeter

®

Length

©

Area

Answers

Answer:

Perimeter of the board

Step-by-step explanation:

That measurement of "the border of her bulletin board" is actually the perimeter of the board.

1) Mrs. Kramer is packing 36 kilograms of plums into containers to sell at her farm stand. If
she fills 80 containers, about how many grams of plums does each container hold?
grams

Answers

Answer:

450 grams of plums per container

Step-by-step explanation:

Since you have to convert the 36 kilograms to grams, it will make it 36,000 grams.  You have to divide it into 80 boxes, so 36,000/80 is 450, so 450 it is.

Store A sells a box of 8 pencils for $0.89. Store B sells a box of 12 pencils for $1.25. Which store sells the better deal? Tell the unit rate for each store (rounding to nearest cent)

Answers

Answer:

Should be store B :) The unit rate for store A (rounded) is 0.11 and the rounded unit rate for store B is 0.10

Step-by-step explanation:

Answer:

Store B has the better deal

Unit rate:

Store A = $0.11

Store B = $0.10

Step-by-step explanation:

Store A :

8pencils = $0.89

1 pencil = $0.89/8 = $0.111

Store B:

12pencils = $1.25

1 pencil = $1.25/12 = $0.104

Store B sells 1 pencil at $0.104 and store A at $0.111

Therefore Store B sells the better deal.

Given the following polygon, find the sum of the interior angles and the value of x,
pls help

Answers

Answer:

sum of interior angles - 540

x = 112

Step-by-step explanation:

Hello There!

Geometry

The sum of the interior angles can be found using this formula

let x = sum of interior angles and n = number of sides

x = ( n - 2 ) * 180

there are 5 sides so we plug in 5 to n

5 - 2 = 3

3 * 180 = 540 so the sum of the interior angles is 540

Now to solve for x

Remember the sum of the interior angles is 540 so we use this equation to solve for x

Simple Algebra

540 = x + 118 + 105 + 75 + 130

step 1 combine like terms

118 + 105 + 75 + 130 = 428

now we have 540 = 428 + x

step 2 subtract 428 from each side

540 - 428 = 112

we're left with x = 112

Lexi and Ann went shopping. Ann wondered how much tax she would have to pay on her purchase of $76. Lexi said, "They just charged me $17 in taxes when I bought these outfits for $200." How much will Ann pay in taxes?

Answers

I think the answer would be 76 but someone already told you it!

Ann will pay in taxes on her purchase of $76, if Lexi paid a charge of  $17 in taxes when she bought these outfits for $200, is $6.46.

What is division?

It is the basic arithmetic operation, in which you are separating the number into some parts.

Given:

Lexi paid a charge of  $17 in taxes when I bought these outfits for $200,

Calculate the charge in one dollar = 17 / 200

Now, calculate the charge for $76 dollar = 17 / 200 × 76

The charge for $76 dollar = $6.46

To know more about division:

https://brainly.com/question/27566440

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Which answer is it? Btw thx

Answers

Answer:

B

Step-by-step explanation:

I need help this is due Thursday, show your work and answer the question

Answers

Don’t click that link please !

EMERGENCY PLEASE HELP

Answers

Step-by-step explanation:

here <D+<B=180

sum of two opposite angle of the cyclic quadrilateral is 180

x+28=180

x=180-28=152°

angle A=x-36=152-36=116°

(4 - x)(3+ 2x) = .................... ​

Answers

Answer:

-2x^2+5x+12

Step-by-step explanation:

(4-x)(3+2x)

12-3x+8x-2x^2

12+5x-2x^2

-2x^2+5x+12

Mr.Eastman drew triangle JKL,with a height of 12 inches and a base of 12 inches, and triangle XLZ, with a height of 8 inches and a base of 16 inches.Which trangle has the greater area?

Answers

Answer:

Step-by-step explanation:

Area of triangle = 1/2 × Base × Height

Mr.Eastman drew triangle JKL,with a height of 12 inches and a base of 12 inches

Area of JKL = 1/2 × 12 inches × 12 inches

= 72 Square inches

triangle XLZ, with a height of 8 inches and a base of 16 inches. Which triangle has the greater area?


1. There are 130 boys. 100. girls, and 20 adults. Write the ratio of the
number of girls to the number of adults. *

Answers

Answer:

100:20 or 100/20 or 100 to 20

2 of 5
Given that a = 2.6 cm, and b = 10.8 cm, work out 2.
Give your answer rounded to 1 DP.
b
a
The diagram is not drawn accurately.
==
cm

Answers

What is 2?

the question is not clear

David bought 26 boxes of crayons for $38.48. How much did he pay for each box of crayons?

Answers

Answer:

740.48

Step-by-step explanation:

multipky

what is the answer to this question?

Answers

qeta ssbeni rpnedjo e  

adwdaee  icsoch

HELP WILL GIVE BRIANLY AND PLS WORK IT OUT!

Kim chose a certain number, she multiplies it by 2 then subtract 60. she the divide the result by 11. Her result was 4. What number did Kim choose at the beginning? Show Working.​

Answers

Answer: 52.

Step-by-step explanation:

52x2=104

104-60=44

44/11=4

(brainliest to the right answer) log9 (3b-6)=log9 (4b+3) please show work thank you

Answers

Answer: b=-9

Step-by-step explanation:

1. divide both sides

2.move the terms

3.collect like terms, calculate

4.change the signs

can anyone solve this ?? I have been trying for so many hours

Answers

Answer:

Yes. it is 509/56

Step-by-step explanation:

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