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enyata [817]
2 years ago
10

What are the x-intercepts for the function f(x)=x2 + 2x - 15?

Mathematics
1 answer:
Sholpan [36]2 years ago
3 0

Answer:

D) (-5,0),(3,0)

Step-by-step explanation:

f(x)=x^2+2x-15\\\\0=x^2+2x-15\\\\0=(x+5)(x-3)\\\\x=-5,x=3\\\\(-5,0),(3,0)

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The sum of the lengths of the bases (b1+b2) for the given trapezoid is 10 meters.

<u>Step-by-step explanation:</u>

The given information are,

  • The height of the parallelogram = 7 meters
  • The area of the parallelogram = 35 square meters.

It is given that the height and area of the trapezoid is same as the height and area of the parallelogram.

<u>To find the sum of the lengths of the bases of trapezoid :</u>

Substitute height, h of the trapezoid as 7 meters and Area of trapezoid as 35 square meters.

Area of the trapezoid = 1/2 × h × (b1+b2)

35 = 1/2 × 7 × (b1+b2)

70/7 = (b1+b2)

(b1+b2) = 10

Therefore, the sum of lengths of the bases of trapezoid is 10 meters.

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3 years ago
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Answer:


Step-by-step explanation:

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