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Novay_Z [31]
3 years ago
7

Solve: negative 1 over 2 x + 2 = −x + 7 (5 points)

Mathematics
1 answer:
anzhelika [568]3 years ago
6 0

Answer:

x = 10

Step-by-step explanation:

-\dfrac{1}{2}x+2=-x+7\qquad\text{Given}\\\\\dfrac{1}{2}x=5\qquad\text{add x-2}\\\\x=10\qquad\text{multiply by 2}

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What’s the answer to 2(4+9w)
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Read 2 more answers
Plz answer question in screen shot
liberstina [14]

Answer:

tan theta = 2 sqrt(5) /15

Step-by-step explanation:

sin theta = opp / hypotenuse

sin theta = 2/7

We can use the Pythagorean theorem to find the length of the adjacent side

a^2 + b^2 = c^2

2^2 +adj^2 = 7^2

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adj = sqrt(45) = sqrt(9*5) =sqrt(9) sqrt(5) = 3 sqrt(5)

The tan theta = opp/ adj

tan theta = 2 / 3 sqrt(5)

Multiply by sqrt(5) / sqrt(5)

                = 2 sqrt(5) / 3 *5

                 = 2 sqrt(5) /15

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