Solve the system of equations – 8x + 3y = -17 and 3x – y = 7 by combining theequlations.

Solve the system of equations - 8x + 3y = -17 and 3x - y = 7 by combining the
equlations.

9. Find the area of a circle having a circumference of 382. Round to the nearest tenth. Use 3.14 for 1. a. 1133.5 units b. 1078.6

1. Expert says:

Yes you are correct
$What is x and y when the angles are 90,60 and 30 and the right angle side is 8?$

2. Expert says:

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° = $\frac{ab}{bc}$

but bc = 20 feet.

⇒ tan 55 ° =   $\frac{ab}{20}$

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

3. jessixa897192 says:

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Step-by-step explanation:

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