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2 years ago

A rectangle is 3 feet long by 4 feet wide

Mathematics

2 answers:

egoroff_w [7]2 years ago

7 0

Answer:

20ft^2

Step-by-step explanation:

The length is currently three feet, if you add two feet to three that makes five feet. Five times four is twenty.

I hope this helps!

igomit [66]2 years ago

3 0

Answer:

$20 ft^{2}$

Step-by-step explanation:

A rectangle's formula for area is:

$Area=L(w)$

Let's use the formula to find the area first.

Multiply the Length and Width:

3 · 4 = 12.

12 is our area for the previous rectangle.

Our new rectangle has a length of 3+2, and a width of 4.

Let's use the formula again to find the area of our new rectangle.

Multiply 5 by 4:

5 · 4 = 20.

The area of the new rectangle is $20ft^{2}$

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A car braked with a constant deceleration of 16ft/s2, producing skid marks measuring 200 feet before coming to a stop. How fast

Llana [10]

Answer:the car was traveling at a speed of 80 ft/s when the brakes were first applied.

Step-by-step explanation:

The car braked with a constant deceleration of 16ft/s^2. This is a negative acceleration. Therefore,

a = - 16ft/s^2

While decelerating, the car produced skid marks measuring 200 feet before coming to a stop.

This means that it travelled a distance,

s = 200 feet

We want to determine how fast the car was traveling (in ft/s) when the brakes were first applied. This is the car's initial velocity, u.

Since the car came to a stop, its final velocity, v = 0

Applying Newton's equation of motion,

v^2 = u^2 + 2as

0 = u^2 - 2 × 16 × 200

u^2 = 6400

u = √6400

u = 80 ft/s

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3 years ago

What does - 12/s - 5 - 9w use s =4 and w = 3 equal

qwelly [4]

Your answer would be -35.

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3 years ago

Which expression can be used to solve 3/5 divide by 7/10

kramer

Answer:

$\frac{3}{5} *\frac{10}{7}$

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3 years ago

Types of circle geometry concepts

SOVA2 [1]

Answer:

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3 years ago

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34kurt

Answer:

-17

Step-by-step explanation:

-3 - 14 = -17

I hope this helps!

6 0

3 years ago