MATHEMATICS HIGH SCHOOL

The stopping distance (s) of a car varies directly as the square of its speed (v). If a car traveling 20 mph requires 60 ft to stop, find the stopping distance for a car traveling 40 mph. Round to the nearest tenth.

Answers

Answer 1

Answer:

Answer:

The stopping distance for a car traveling 40 mph is 240 feet.

Step-by-step explanation:

We are given the following in the question:

The stopping distance (s) of a car varies directly as the square of its speed (v)

$s\propto v^2$

Removing the sign of proportionality and adding constant of proportionality, we get

$s = kv^2$

where k is constant of proportionality.

Now, when s = 60 feet, v = 20 mph

Putting values, we get,

$60 = k(20)^2\n\nk = (60)/(400) = 0.15$

Putting value of k in the equation, we get,

$s = 0.15v^2$

We have to find the stopping distance for a car traveling 40 mph.

$s = 0.15(40)^2 = 240\text{ feet}$

Thus, the stopping distance for a car traveling 40 mph is 240 feet.

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Answers

-8+3x < -17x+17
-17x
___________
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________________
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What do you do when your in love with 2 people at once? I'm stuck in the middle I really need help....

Answers

Answer:

Well you think about there pro's and con's and who would be better for you

Step-by-step explanation:

Answer:

Make a list of the two people you like and write down the things you like about them, then whoever, has the most nice things about them, then choose them.

Step-by-step explanation:

Parallel and Perpendicular Line Equations Write the slope-intercept form of an equation of the line that passes through the point (3.2) and is parallel to y = x + 5 yox. 1 X5I need help asap pls

Answers

Answer:

y = x - 1

Step-by-step explanation:

Lines that are parallel have the same slope. The slope of the given equation is 1. This means that the new equation will also have a slope of 1.

Use the point-slope form to find the equation with the given point and slope.

y - y₁ = m(x - x₁)

y - 2 = 1(x - 3)

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(y - 2) + 2 = (x - 3) + 2

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Solve for b and c

2x^3-8x^2-24x=2x(ax+b)(cx+d)

a=1 and d=-6

Answers

Answer:

b = 2, c = 1

Step-by-step explanation:

2x³ - 8x² - 24x == 2x(ax + b)(cx + d)

2x³ - 8x² - 24x = 2x(x² - 4x - 12)

= 2x(x + 2)(x - 6)

Answer:

Step-by-step explanation:

b=2, c=1

Write 9(39) using the Distributive Property. Then simplify.

Answers

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(38x+61y)-(3x-11y) simplify this expression

Answers

━━━━━━━☆☆━━━━━━━

▹ Answer

35x + 72y

▹ Step-by-Step Explanation

(38x + 61y) - (3x - 11y)

38x + 61y - (3x - 11y)

38x + 61 y - 3x + 11y

35x + 61y + 11y

35x + 72y

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

━━━━━━━☆☆━━━━━━━

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