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3 years ago

What's the perimeter of a rectangle with length 12 m and width 5 m?

Mathematics

2 answers:

maks197457 [2]3 years ago

5 0

Perimeter = 2*(L + W) = 2*(12 + 5) = 2*17 = 34

Perimeter = 34 m

Option D.

Dmitry_Shevchenko [17]3 years ago

5 0

<span>The answer is D. 34 m...Hope this helps.</span>

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PLEASE HELP!!!

AlekseyPX

Answer:

Step-by-step explanation:

Find the average rate of change of each given function over the interval [-2, 2]]:

✔️ Average rate of change of m(x) over [-2, 2]:

Average rate of change = $\frac{m(b) - m(a)}{b - a}$

Where,

a = -2, m(a) = -12

b = 2, m(b) = 4

Plug in the values into the equation

Average rate of change = $\frac{4 - (-12)}{2 - (-2)}$

= $\frac{16}{4}$

Average rate of change = 4

✔️ Average rate of change of n(x) over [-2, 2]:

Average rate of change = $\frac{n(b) - n(a)}{b - a}$

Where,

a = -2, n(a) = -6

b = 2, n(b) = 6

Plug in the values into the equation

Average rate of change = $\frac{6 - (-6)}{2 - (-2)}$

= $\frac{12}{4}$

Average rate of change = 3

✔️ Average rate of change of q(x) over [-2, 2]:

Average rate of change = $\frac{q(b) - q(a)}{b - a}$

Where,

a = -2, q(a) = -4

b = 2, q(b) = -12

Plug in the values into the equation

Average rate of change = $\frac{-12 - (-4)}{2 - (-2)}$

= $\frac{-8}{4}$

Average rate of change = -2

✔️ Average rate of change of p(x) over [-2, 2]:

Average rate of change = $\frac{p(b) - p(a)}{b - a}$

Where,

a = -2, p(a) = 12

b = 2, p(b) = -4

Plug in the values into the equation

Average rate of change = $\frac{-4 - 12}{2 - (-2)}$

= $\frac{-16}{4}$

Average rate of change = -4

The answer is D. Only p(x) has an average rate of change of -4 over [-2, 2]

3 0

3 years ago

factor each expression: 4n^2-8n+3, 4p^2+7p+3, 6r^2-23r+20, 5z^2+19z-4, 2k^2-13k-24, 6t^2+7t-5, 3x^2+23x-36, 4w^2-5w-6, 4d^2-4d-

Rashid [163]

(2n-3)(2n-1), (4p+3)(p+1), (3r-4)(2r-5), (5z-1)(z+4), (2k+3)(k-8), (3t+5)(2t-1), (3x-4)(x+9), (4w+3)(w-2), (2d-7)(2d+5)

these are the answers in order, hope I helped :) please choose my answer as the best xx

4 0

3 years ago

The seventh-grade class is building target areas for a PE activity. The bases for the game will be in a circular shape. The diam

muminat

Answer:

7.1 feet^2

Step-by-step explanation:

The base is made of a circular shape, so to solve this question we need to know how to calculate the circle area. The formula for the circle area is π * r^2 so we need to find the radius(r). Radius equal to half of the diameter and the diameter needed is 3 feet, then the area of the circle will be:

area = π * r^2

area = 3.14 * (3/2 feet)^2

area = 7.065 feet^2 = 7.1 feet^2

4 0

3 years ago

Which expression is the simplest form of 2x^3 - x^2 + 3 (x^3 - 4x^2)

jolli1 [7]

The simplest form of the given expression is 5x^3-5x^2.

We have given that

$2x^3 - x^2 + 3 (x^3 - 4x^2)$

We have to determine the simplest form of the given expression.

<h3>What is the distributive property?</h3>

The distributive property of binary operations generalizes the distributive law, which asserts that equality is always true in algebra. elementary.

Use the distributive property we get,

$2x^3 - x^2 + 3 (x^3 - 4x^2)\\=2x^3 - x^2 +3x^3-12x^2\\$

Add like terms we get,

Therefore we get,

$=5x^3-5x^2$

Therefore the simplest form of the given expression is 5x^3-5x^2.

To learn more about the expression visit:

brainly.com/question/723406

#SPJ1

5 0

2 years ago

Please help! I will give Brainliest!

lubasha [3.4K]

Answer:

A. 44/625

Step-by-step explanation:

There are 25 marbles total. To first calculate the probability of picking a yellow marble first can be represented as 11/25, the probability of picking blue is 4/25. We multiply these to figure out the probability of finding a yellow marble and then a blue one.

11/25 x 4/25 = 44/625

7 0

3 years ago