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Afina-wow [57]
3 years ago
11

20 points!! will mark Brainliest if correct!! plz help I need this done today!!

Mathematics
1 answer:
ololo11 [35]3 years ago
6 0

Answer:

1. 15m^7n^2

2. -20m^3n^4

3. 10m^8n^3

Full expression: 15m^7n^2 - 20m^3n^4 + 10m^8n^3

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The areas of two similar triangles have a ratio of 16:49. What is the ratio of their perimeters?
evablogger [386]
The ratio of areas is the square of the ratio of perimeters (or any linear measure). Then the ratio of perimeters is the square root of the ratio of areas:
.. √(16/49) = 4/7

Selection D is appropriate.
4 0
3 years ago
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write a simplified polynomial expression in the standard form to represent the area of the rectangle below x-4 5x+2
Ann [662]

The area of the rectangle is 5x^{2} -18x-8

Explanation:

One side of the rectangle is x-4

The another side of the rectangle is 5x+2

The formula to find the area of the rectangle is length × width

Area = length × width

Substituting the values, we have,

\begin{aligned}\text { Area } &=(x-4)(5 x+2) \\&=5 x^{2}+2 x-20 x-8 \\&=5 x^{2}-18 x-8\end{aligned}

Thus, the area of the rectangle is 5x^{2} -18x-8

3 0
3 years ago
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Find two integers whose sum is -5 andproduct is 4
nirvana33 [79]

Answer:

-1 and -4

Step-by-step explanation:

-1 + -4 = -5

-1 times -4 = 4

give brainiest please!

hope this helps ;)

7 0
1 year ago
A cylinder has a radius of 6 inches and a height of 15 inches. What is the surface area of the cylinder? Express the answer in t
shutvik [7]

Answer:

The surface area for this cylinder is 252*pi square inches.

Step-by-step explanation:

The surface area of a cylinder can be calculated by using the following formula:

surface area = 2*pi*r² + 2*pi*r*h

Applying the data from the problem, we have:

surface area = 2*pi*(6)² + 2*pi*(6)*15

surface area = 2*pi*36 + 180*pi

surface area = 72*pi + 180*pi

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The surface area for this cylinder is 252*pi square inches.

4 0
3 years ago
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(3x+4)(2x+1)

If the question asks you to find roots/solutions:

3x + 4 = 0
3x = -4
x = -1.33333333

2x + 1 = 0
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x = -0.5
4 0
2 years ago
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