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3 years ago

This is a complemntary angle. Solve for X

Mathematics

1 answer:

just olya [345]3 years ago

7 0

Answer:

x = 30

Step-by-step explanation:

We start off with 90 degrees

2x + x = 90

Add all like terms

3x = 90

Divide 3 on both sides

$\frac{3x} {3} = \frac{90} {3}$

x = 30

To check your answer:

Let x be 30

2x + x = 90

2 (x 30) + 30 = 90

60 + 30 = 90

90 = 90

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Answer:

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Step-by-step explanation:

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2 years ago

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2 years ago

Helena had a balance of $14.48 left on a gift card. She bought a muffin each for her, and five of her friends. The cost of each

Ivenika [448]

She spent $6.12 on the muffins for her and her friends, and she has $8.36 left on her gift card. By multiplying 6 by $1.02, you get the amount she spent, and by subtracting $14.48 by $6.12, I find how much she has left on her gift card.

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2 years ago

How to find the area of a square ABC D

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Answer:

The answer to your question is 13 u²

Step-by-step explanation:

We know that the small triangle is surrounded by right triangles so we can use the Pythagorean theorem to find the lengths of the small triangle

AD² = 3² + 2²

Simplify

AD² = 9 + 4

AD² = 13

AD = $\sqrt{13}$

Find the area of the square

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Area = AD x AD

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6 0

3 years ago

PLease help me solve this

Mnenie [13.5K]

Answer: 729

Step-by-step explanation:

$\frac{1}{3^{-2} * 3^{-4} * (-1)^{2} }$

3^-2 = 1/9

3^-4 = 1/81

(-1)^2 = 1

1/(1/9 * 1/81 * 1)

1/ 1/729 = 729

4 0

1 year ago