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3 years ago

Find the value of x? Enter your answer in the box.

Mathematics

1 answer:

8090 [49]3 years ago

5 0

Answer:

x = 21

Step-by-step explanation:

We know that a triangle equals to 180 degrees.

Combine like terms. (x + 3x) and (-4 + 100)

x - 4 + 3x + 100 = 180

Subtract 96 on both sides.

4x + 96 = 180

-96 -96

Divide 4 on both sides.

4x = 84

--- -----

4 4

And you get a solution of 21.

x = 21

<u>Check:</u>

Substitute 21 into x.

Add/Subtract from left to right.

21 - 4 + 3(21) + 100 = 180

17 + 63 + 100 = 180

80 + 100 = 180

180 = 180

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saveliy_v [14]

Answer:

a) 7

Step-by-step explanation:

a+b = 12

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2 years ago

What is the greatest common factor of 9x^2<br> 2<br> and 6x?

zheka24 [161]

Answer:

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Step-by-step explanation:

In this question we will factorize the expressions given and select the common factors among all.

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3 years ago

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Step-by-step explanation:

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2 years ago

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DENIUS [597]

Step-by-step explanation:

the answer is E

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3 years ago

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allochka39001 [22]

Answer:

b = 7 $\sqrt{3}$

Step-by-step explanation:

Since the triangle is right use the tangent ratio to solve for b

and the exact value

tan30° = $\frac{1}{\sqrt{3} }$ , thus

tan30° = $\frac{opposite}{adjacent}$ = $\frac{7}{b}$ and

$\frac{7}{b}$ = $\frac{1}{\sqrt{3} }$ ( cross- multiply )

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3 years ago