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kari74 [83]
3 years ago
8

Can u help me simplify -5(a-9)

Mathematics
2 answers:
Oduvanchick [21]3 years ago
7 0

Answer:

the simplified version of -5(a-9) would be -5a+45.

Step-by-step explanation:

What you have to use is the distributive property. You first take -5 and multiply it by each of the numbers inside. So, you do -5*a which is -5a and then you do -5*(-9) which is +45. You finally put everything together and you get -5a+45.

coldgirl [10]3 years ago
6 0

Answer:

− 5 a + 45

Step-by-step explanation:

can i have brainliest?

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Please help me! Giving brainliest!
oksano4ka [1.4K]

Using it's formula, the surface area of the figure is:

A. S=2332 m²

<h3>What is the surface area of a rectangular prism?</h3>

The surface area of a rectangular prism of dimensions l, w and h is given by:

S = 2(lw + lh + wh)

In this problem, the dimensions are:

35m, 9m, 16m

Hence the surface area of the rectangular prism is:

S = 2(35 x 9 + 35 x 16 + 16 x 9) = 2038 m².

<h3>What is the surface area of a cube?</h3>

The surface area of a cube of side length l is given by:

S = 6l².

In this problem, we have that l = 7 m, hence the surface area is:

S = 6 x 7² = 294 m².

<h3>What is the total surface area?</h3>


The total surface area is the sum of the surface areas, hence:

T = 2038 m² + 294 m² = 2332 m².

Which means that option A is correct.

More can be learned about surface area at brainly.com/question/13030328

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Brrunno [24]

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Note that ∠ 3 is an angle of depression

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