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3 years ago

Answer pls im desperate (10 pts) (how many solutions does this have)

Mathematics

1 answer:

makvit [3.9K]3 years ago

6 0

Answer:

Step-by-step explanation:

Left side

4x + 2x - 10

6x - 10

Right side

6x - 12

Eventually when you equate these sides, you will get an absurd answer because the 6x term will be subtracted out on both sides

that means you get -10 = - 12

which destroys the whole concept of equality. There is no solution.

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Step-by-step explanation:

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2 years ago

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2 years ago

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Answer:

Step-by-step explanation:

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3 years ago

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xz_007 [3.2K]

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2 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)

The perimeter is equal to

$P=3b$

where

b is the length side of the equilateral triangle

we have

$P=48\ cm$

substitute

$48=3b$

solve for b

$b=48/3\\b=16\ cm$

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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

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

$sin(60^o)=\frac{\sqrt{3}}{2}$

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

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

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2 years ago