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Studentka2010 [4]
2 years ago
15

A rectangle has a perimeter of 18. The height of the rectangle is 4 cm. What is the area of the rectangle?

Mathematics
2 answers:
Lunna [17]2 years ago
6 0
20 cm, I think
The perimeter is 18 and the height is 4 cm.

4 cm x 2 = 8
We are multiplying it by two because there are two side in a rectangle that are the same height

18 - 8 = 10
We are finding the length of the rectangle
10\2 = 5
The length of the rectangle is 5

5 x 4 = 20
That is the area
Snezhnost [94]2 years ago
5 0

Answer:

20

Step-by-step explanation:

Perimeter of rectangle= 2l+2h so 2l+2(4)=18. SO 2l=10. l=5

Area=bh

(5)(4)=20cm

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3 years ago
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3 0
2 years ago
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eduard

If you would like to solve (g ° f)(x), you can calculate this using the following steps:<span>

(g ° f)(x) = g(f(x))

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5 0
2 years ago
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Gnoma [55]

Answer:

The correct option is D.

Step-by-step explanation:

The linear regression equation is in the form of

y=bx+a

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a=\frac{(\sum y)(\sum x^2)-(\sum x)(\sum xy)}{n(\sum x^2)-(\sum x)^2}

The formula of r is

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3 0
3 years ago
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2 years ago
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