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3 years ago

5

What is the value of x ?

2 answers:

Lisa [10]3 years ago

5 0

8, you want to have a right angle = 90 deg, clear?

andre [41]3 years ago

3 0

I will see that 12x-6 will equivalent to 90° because both angle add together to get 180° and each of them has 90° each which is complementary angel, so here is the equation:
12x-6=90
Add 6 to each side
12x-6+6=90+6
12x=96
Divided both side by 12
12x/12=96/12
x=8
To prove x is correct, I will give you another way to et the same answer. We see that 12x-6 and 90° formed the straight line which add up to total of 180°, so
12x-6+90=180
12x+84=180
Subtract 84 to each side
12x+84-84=180-84
12x=96
Divided both side by 12
12x/12=96/12
x=8. As a result, the correct answer is 8. Hope it help!

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2 years ago

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What is average unit rate for 200/12.54

Nadusha1986 [10]

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Step-by-step explanation:

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3 years ago

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SCORPION-xisa [38]

Answer:

3 $\sqrt{141}$

Step-by-step explanation:

Use the Pythagorean Theorem.

$37^{2}$ = $x^{2}$ + $10^{2}$

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-100 -100

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3 0

3 years ago

(Number 5)help plzzz

EleoNora [17]

Answer:

See below.

Step-by-step explanation:

So we want to prove that:

$\sqrt8+\sqrt2=3\cdot 2^{\frac{1}{2}}$

First, simplify √8. This is the same as:

$\sqrt8=\sqrt{4\cdot 2}=\sqrt4\cdot\sqrt2=2\sqrt2$

Therefore, our equation is now:

$2\sqrt2+\sqrt2=3\cdot2^{\frac{1}{2}}$

Combine like terms on the left:

$3\sqrt2=3\cdot 2^\frac{1}{2}}$

The square root of something is the same as taking that number to the one-half power. Thus:

$3(2)^\frac{1}{2}}=3\cdot 2^\frac{1}{2}}$

Rewrite:

$3\cdot2^\frac{1}{2}}\stackrel{\checkmark}{=}3\cdot2^\frac{1}{2}}$

And we're done!

6 0

2 years ago