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mafiozo [28]
3 years ago
8

Add. 7x2 - 5x+3 + 2x2 +7x-8

Mathematics
1 answer:
harina [27]3 years ago
4 0

Answer:

5(4x-1)

Step-by-step explanation:

14x+2x-5+4x

16x-5+4x

20x-5

5(4x-1)

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If a car goes around a turn too quickly, it can leave tracks that form an arc of a circle. By finding the radius of the circle,
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I just encountered this question. Here's my answer. 

Given:
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I think that I'll be using the Pythagorean Theorem in finding the value of r. r will be the hypotenuse

Segment CE = (r - 70 feet)

r² = a² + b²
r² = 130² + (r-70)²
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r² = 16,900 + r² - 70r - 70r + 4900
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