The stopping distance (s) of a truck varies directly as the square of its speed (v). If a truck travelling at 50 mph requires 200 feet to stop, find the stopping distance for a truck travelling at 65 mph.

Answers

Answer 1

Answer:

The distance is 338ft

Step-by-step explanation:

Given

Represent distance with s and velocity with v:

When

[tex]s = 200\ ft[/tex]

[tex]v = 50mph[/tex]

Required

Determine the distance when velocity is 65mph

From the question, we understand that:

[tex]s\ \alpha\ v^2[/tex]

Convert to equation

[tex]s\ = kv^2[/tex]

Substitute 200 for s and 50 for v

[tex]200 = k * 50^2[/tex]

[tex]200 = k * 2500[/tex]

Make k the subject:

[tex]k = \frac{200}{2500}[/tex]

[tex]k = \frac{2}{25}[/tex]

To get s when v = 65.

Substitute 65 for v and 2/25 for k in [tex]s\ = kv^2[/tex]

[tex]s = \frac{2}{25} * 65^2[/tex]

[tex]s = \frac{2}{25} * 4225[/tex]

[tex]s = \frac{8450}{25}[/tex]

[tex]s = 338\\[/tex]

Hence, the distance is 338ft


Related Questions

need help with math ​

Answers

2) no solution

3) x=3

what is the sum of the exterior angles of a decagon

Answers

Answer:

10 exterior angles of 36° , 10 interior angles of 144° , and 10 vertices

Step-by-step explanation:

what is 12x − y = 10 in slope form equation?

Answers

Y=12x-10


Explanation:

You basically what to get y by itself so-

12x-y=10

You will add y to both sides

12x=y+10

Then subtract ten from both sides

12x-10=y or y=12x-10

Janet collected 4 times as many bags of cans as her friend. If her friend collected 0.87 of a bag,
how much did Janet collect?

Answers

Answer:

Janet collected 3.48 bags of cans

Step-by-step explanation:

The answer is 3.48 because 0.87 multiplied by 4 is 3.48

Answer:

.384

hope this helps!

I accidentally fell asleep in math, I just need yes and no's please help me out!

Answers

Answer:

No, yes, yes, yes, no, no, yes, no, yes, no, no, yes

Step-by-step explanation:

Explanation is in the comments by the way.

What is the equation of the line with a slope of 3 and a y-intercept of -2, written in slope intercept form?

Answers

Answer:

y=3x-2

Step-by-step explanation:

Slope intercept form is

y=mx+b

m=slope

while

b=y-intercept

So you replace the variable with the number that is equal to it:

(A variable is a letter that is unknown like m and b)

y=3x-2

Hope this helps!

Answer:

y = 3x -2

Step-by-step explanation:

formula: y =mx+b, m is slope

2/5 divided by 1/8. Simplest form

Answers

Answer:

1/20 or in a decimal 0.05

Step-by-step explanation:

Hope This helps :)

Answer:

The correct answer is 3 and 1 over 5 also written as 3 1/5

Step-by-step explanation:

HAVE A GOOD DAY!

What is the slope of the lined graphed above?
-2
-1
-1/2
1/2
2

Answers

(0,1), (2,0)
(0-1)/(2-0) = -1/2
The slope is -1/2

Answer: D. 1/2

Step-by-step explanation:

The radius of a circle is 12 in. Find its area in terms of \piπ.

Answers

Answer:

pi144

Step-by-step explanation:

square the radius but dont multiply by pi because the question wants you to leave it out.

help!!! which is the correct answer ​

Answers

Answer:

There are no solutions

Step-by-step explanation:

Answer:

the answer is B;

Step-by-step explanation:

5x-4≥12

c.l.t

5x≥12+4

5x≥16

X≥16/5

or

3,1/5

which is still 16/5

x≥16/5

Did I do this right? Pls help thx

Answers

I am sure your right!!!

Answer:

yes that is correct

Step-by-step explanation:

Which of these triangle pairs can be mapped to each other using a single reflection?

Triangles F E G and F G L are congruent. Triangle F E G is reflected across line F G to form triangle F G L.
Triangles F E G and G L M are congruent. Triangle E F G is rotated about point G to form triangle G L M.
Triangles F E G and L M N are congruent. Triangle F E G is shifted down and to the right to form triangle L M N.
Triangles L M N and E F G are congruent. Triangle F E G is reflected across a line to form triangle L M N. Triangle L M N is also slightly higher and to the right of triangle E F G.

Answers

Answer:

the first answer (A)

Step-by-step explanation:

took it on edge 2020 (:

Answer:

A

Step-by-step explanation:

I took it on edg 2020 and got it wrong so I thought I would help you

Based on the equation 6x + 2y = 30, what is the missing value in the table?

x
y
?
0
3
5
15
30

Answers

Answer:

5

Step-by-step explanation:

Answer:

the answer is b on edge

Step-by-step explanation:

ok

If Kara cuts 2 pounds of cheese into blocks that each weigh
1
3
pound, how many blocks of cheese will she make?
blocks

Answers

The answer would be 6 blocks of cheese

After 6 hours, 4 inches of snow have fallen. Assume it continues just know at a constant rate complete the table to show how much snow have fallen after 1,2,6 and 8 hours

Answers

Answer:

Step-by-step explanation:

For 6 hrs and 4 inches that's 2/3 an inch for every hr

1 hr  2/3 inches

2 hrs 1.3 or 1 1/3 inches

6 hrs 4 inches

8 hrs 5.3 or 5 1/3 inches

The scale on a map is 1 inch= 2.5 miles. Two towns on the map are 6 inches apart. What is the actual distance between the towns in miles

Answers

Answer:

15 miles

Step-by-step explanation

After setting up a ration you multiply the 2.5 by 6 to get 15.

Identifying the domain and range of the relation.

Answers

Answer:

1. The domain is (-2, -1, 0, 1) the rage is (4,2,0,2) 2. It is a function

Step-by-step explanation:

The domain in a pair is always the first number. The range is always the second number in the ordered pair.

Answer:

Domain: {−2,−1,0,1}

Range: {0,2,4}

Step-by-step explanation:

The domain is all the x-coordinates, but NEEDS TO BE ORDERED, which are {−2,−1,0,1} and you also need to include the curly brackets { }.

The range is all the y-coordinates and also NEEDS TO BE ORDERED, which are {0,2,4} and you also still need to include those curly brackets { }.

Hope this helps and answers your question! :)

Write an algebraic expression to represent the following:

The product of 7 and the sum of a number, y, and 3.

Answers

Answer:(7+x)(y+3)

Step-by-step explanation: 7 plus X times Y plus 3

H E L P!


Your brother has a bag of marbles. He has 8 green marbles, 3 blue marbles, 7 red marbles, and 2
yellow marbles.

What is the ratio of blue and yellow marbles to red marbles?

(Write your ratio as a
fraction)

Answers

Answer:

3+2:7

Step-by-step explanation:

Answer:

1/5

Step-by-step explanation:

Blue mables: 3

green and red marbles: 8 + 7 = 15

then, the radio blue:(green+red) is:

3 : 15

simplified unit rate is:

3/3 = 1

15/3 = 5

then:

3:15

is equal to:

1:5

=

1/5

explain why n(n-1) must be an even number

Answers

Whether n is an even or odd number, you will always have an even number and an odd number multiplying each other. An even number times an odd number is always an even number.

x equal??


helppp plssss

Answers

Answer:

ngghhjjhgifiufigfigiufuff

Answer:

X=4

Step-by-step explanation:

Which graph shows a function where f(2)= 4?

idk i guessed and got it right :)

Answers

Answer:

The 4th graph.

Step-by-step explanation:

Answer:

The first one

Step-by-step explanation:

f(2)=4 means when x=2. F(x) or you may call it y, equals 4, so find the one that when x=2, y=4, then its your answer.

answer with work plus it's the bottom one

Answers

4x+7=23 is the equation
4x=16
x=4
the number is 4

Twenty people each had 36 carrots. How many carrots are there altogether?

Answers

You know that there are 25 people and each person had 36 carrots. To find how many carrots everyone has in total, you have to multiply 25 by 36.

25 times 36 is 900.

There are 900 carrots altogether.

Find the area of the trapezoid,
6 in.
4 in.
8 in.
7
The area is
square inches

Answers

Answer:

I think the answer is 8 inches

Emily has a babysitting job that pays $11 per hour. She wants to know how many hours she has to babysit to afford a
new iPad that is $165. Which equation will represent this situation with h representing the number of hours Emily
has to babysit?

165 = 11 -
165 = 11 +h
165 = 11/h
165 = 11h
с
Od
Review Answers
Saved at 7:52 am

Answers

Answer: 165=11h

Step-by-step explanation:

I believe it would be 165=11h because you have to multiply the number of hours she worked times 11 to get the amount that would equal 165!

(PLEASE ANSWER!) Two distinct lines, L and M, are each perpendicular to the same line N. What is the measure of the angle where line L meets line N? What is the measure of the angle where line M meets line N?

Answers

Answer:

90 and 90

Step-by-step explanation:

If they are perpendicular it means they cross at a 90 degree angle so since both L and M are perpendicular to N both the answers would be 90

Hope This Helps :)

The measure of the angle where line L meets line N is 90° ;

and the measure of the angle where line M meets line N is 90°.

What are perpendicular lines?

In geometry, perpendicular lines are defined as two lines that meet or intersect each other at right angles (90°).

Now it is given that,

Two distinct lines, L and M, are each perpendicular to the same line N.

Line L is perpendicular to line N.

Since angle between two perpendicular lines =  90°.

So, angle between line L and line N = 90°

Similarly, Line M is also perpendicular to line N.

Therefore, angle between line M and line N = 90°

Thus, The measure of the angle where line L meets line N is 90° ;

and the measure of the angle where line M meets line N is 90°.

To learn more about angles :

https://brainly.com/question/13524681

#SPJ6

need help asap dont know how to do it​

Answers

Division. Divide 45 by -3
Would you be asking for help with Question 13 or 14?

A bottle of water contains 450ml. How many litres of water are there in 8 of these bottles

Answers

Answer:

3.6 litres

Step-by-step explanation:

1 bottle = 450ml

8 bottles = 450 × 8

               = 3600ml

1000ml = 1 litre

3600ml = 3.6 litres (3600÷1000)

Answer:

3.6 litres

Step-by-step explanation:

1 bottle = 450ml

8 bottles = 450 × 8

              = 3600ml

1000ml = 1 litre

3600ml = 3.6 litres (3600÷1000)

PLZ HELP ASAP!!!!!!!!

Answers

Answer:

Step-by-step explanation:

formula for cylinder:V=πr2h

shape of the base: circle

formula for circle: A=πr2

radius: 6.5cm

height: 16cm

V=3.14x6.5^2x16

2122.64cm^3

Answer:

Step-by-step explanation:

The formula for volume a a cylinder is V=pi*r²h

The shape of the base is circular

the formula for area of a circle is A=pi*r²

The radius is 6.5 cm

The height is 16 cm

V=pi x 6.5² x 16

The volume of the cylinder is 2123.72

Hope this helps:)

Other Questions
Please help ASAP Ill give top rating How many solutions can you get out of this equation 4(x3)=12(x2+5) When considering time management techniques, it is important to remember that ________. a. The more techniques used, the better off you will be b. You have to try strategies that dont make sense for your type of work c. Not all techniques work well for all people in all situations d. Each strategy can work for everyone Please select the best answer from the choices provided A B C D 2. What is the thickness of the sediment along the east coast of NorthAmerica? I HIiii. Hope y'all having a great day... so... i have a question...who's your favorite..rapper...singer....etcu have 5 minutes GO! 10. A) Based on the information in the article, what kind of changes have taken place in the red blood cells of a person with sickle-cell anemia? (Give at least two changes.) (2 points) Why did ancient Hebrews spread throughout the world? What is the area of the garden 9/10 de las razas aliengenas piensan que invadir la Tierra es una mala idea. Qu porcentaje de razas aliengenas piensa que invadir la Tierra es una mala idea? Identify seven capitalization and punctuation rules that should be applied to this sentence.toms independence day holiday wasnt spent in californiaCapitalize the first word of the sentence.Use a hyphen between certain compound words and special expressions.Use italics for the title of a book.Capitalize people's names and titles used with their names.Use parentheses around incidental expressions.Use quotation marks for the title of short works.Capitalize the names of particular places.Capitalize the names of languages.Capitalize names of days of the week, months, and holidays.Use quotation marks around direct quotes.Use inside punctuation with direct quotes.Punctuate entire sentences outside question marks as indicated by meaning.Use correct end punctuation for the type of sentence.Use an apostrophe in contractions to indicate the missing letter(s).Use an apostrophe to correctly indicate singular or plural possession.Capitalize words in a title except for articles and prepositions.Use a comma before a direct quote. Find the magnitude of the buoyant force on the block. The acceleration of gravity is 9.8 m/s 2 . Answer in units of N. Examine the diagram. It is not drawn to scale. What is the m3? m3 =_____ A sea turtle wasswimming 80 feet belowsea level. If it swims to thesurface for air, what is itsnew position? HELPPPPPPP: write 1 page about the similarities and differences beliefs of aristotle, plato, and socrates. Write an equation for the line? Which changes of state occur between solids and gases? Check all that apply.vaporizationdepositionfreezingmeltingsublimation If a country is taking action to make sure all its citizens who want work can find jobs, it is perusing which economic goal help is this ABC or D COMPLETEIn addition to paying debts and promoting industry, Hamilton wanted to-Establish a national bank-promote farming-reduce manufacturing A 20.0 cm wrench is used to generate a torque at a bolt. A force of 50 N is applied at the end of the wrench at an angle of 60.0 degrees to the wrench. The torque generated at the bolt is A. 4.9 Nm. B. 5.7 Nm. C. 6.0 Nm. D. 7.5 Nm. E. 8.7 Nm.