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castortr0y [4]
3 years ago
13

Solve by quadratic formula: 3x^2 - 10x - 20= 0

Mathematics
1 answer:
Arlecino [84]3 years ago
5 0

this is your answer, i hope this helps you

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Find the height of a square pyramid that has a volume of 75 cubic feet and a base length of 5 feet.
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Answer:

9 ft

Step-by-step explanation:

Let's begin with the formula for the volume of a square pyramid.  If s is the base length, then the area of the base is s^2.  The volume of the pyramid is then V = (1/3)(base area)(height).  We know the volume and the base length (s), and want to find the height.  Solving V = (1/3)(base area)(height)

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base area

Substituting 75 ft^3 for V and (5 ft)^2 for base area, we get:

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