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Blizzard [7]
3 years ago
9

What is the solution to the following system of equations?

Mathematics
1 answer:
Vinvika [58]3 years ago
6 0
The answer is (1,-10)

You solve this by equating the two equations:
-x2 -5x -4 = -x2 +9x -18
-14x = -14
x =1

You then substitute 1 to either of the equations to find y:
y = -(1)2 -5(1) -4
y = -10

Therefore, the solution is (1,-10)
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Hey there! :)

Answer:

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Step-by-step explanation:

Begin by finding the circumference of the circle. Use the formula:

C = 2rπ

C = 2(9)π

C = 18π.

Since ∠AQB equals 50°, set up a ratio to find the length of arc AB:

\frac{50}{360}  = \frac{x}{18\pi }

Cross multiply:

50 · 18π = 360x

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Divide both sides by 360:

x = 2.5π in, or ≈7.85 in.

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Fifteen more than z times 6 is 11 less than y times 2
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<h3>Given:</h3>

Fifteen more than z times 6 is 11 less than y times 2

<h3>Solution:</h3>

Fifteen more than z times 6 = 6z + 15

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<h2>Answer:</h2>

6z + 15 = 2y - 11

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