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laila [671]
3 years ago
15

Subtract. What is the difference (9 * 10"") - (4 * 10 ") in scientific

Mathematics
1 answer:
Nady [450]3 years ago
8 0

Answer:

(5 * 10")

Step-by-step explanation:

9-4 = 5

I don't understand the "" part but im pretty sure this is what you meant

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Edward has several missing assignments in his math class with a total of 274 problems to complete. His goal is to complete 4 pro
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5 0
3 years ago
An equilateral triangle has a perimeter of 48 cm. What is the area?
KiRa [710]

Answer:

A=64\sqrt{3}\ cm^2

Step-by-step explanation:

we know that

An <u><em>equilateral triangle</em></u> has three equal sides and three equal interior angles (each interior angle measure 60 degrees)

so

The perimeter is equal to

P=3b

where

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we have

P=48\ cm

substitute

48=3b

solve for b

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Find the area

The formula of area applying the law of sines is equal to

A=\frac{1}{2}b^2sin(60^o)

substitute the value of b

A=\frac{1}{2}(16)^2sin(60^o)

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A=\frac{1}{2}(16)^2(\frac{\sqrt{3}}{2})

A=64\sqrt{3}\ cm^2

6 0
2 years ago
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