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2 years ago

A falling object accerlates from -10.0m/s to -30.0m/s how much time does that take

Mathematics

1 answer:

Leya [2.2K]2 years ago

5 0

Answer:

2.04 seconds

Step-by-step explanation:

Falling objects near the surface of the earth have an acceleration of -9.81 m/s².

Acceleration is the change in velocity over change in time:

a = (v − v₀) / t

-9.81 = (-30.0 − (-10.0)) / t

-9.81 = -20.0 / t

t = 2.04

It takes 2.04 seconds.

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5(X-Y) in english meaning (word form)

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A number x minus a number y multiplied by 5

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2 years ago

The ratio of red cars to blue cars in a parking lot was 5:3. If there were 40 red <br> cars

Mars2501 [29]

Answer:

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3 years ago

Solve the system using substitution method <br> 3x+y=6<br> 2x-4y=10

Andreyy89

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$\boxed{\left\{\begin{array}{ccc}x=\dfrac{17}{7}\\\\y=-\dfrac{9}{7}\end{array}\right}$

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2 years ago

Read 2 more answers

Is (4,9) a solution to this system of inequalities? y < x + 3 and y > 2x + 1

Setler79 [48]

No

Put (4,9) in equation 1

Mark brainliest please

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2 years ago

The slope of a line perpendicular to the line whose equation is y = 3x - 4 is

trapecia [35]

Answer:

m = -1/3

Step-by-step explanation:

y = 3x-4

This is in slope intercept form

y = mx+b m is the slope and b is the y intercept

The slope is 3 and the y intercept is -4

We want the slope of a line that is perpendicular

Perpendicular lines have slopes that multiply to -1

Let m be the slope of the line that is perpendicular

3 * m = -1

Divide each side by 3

3m/3 = -1/3

m = -1/3

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2 years ago