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nlexa [21]
2 years ago
14

Devaughn's age is two times sydney's age. the sum of their ages is 30 . what is sydney's age

Mathematics
1 answer:
Anton [14]2 years ago
6 0
20 and 10, 20 is 2 times 10 and if you add them together its 30

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Factor polynomial -3x^2-16x-5
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Answer:

-(3x^2 + 16x + 5)

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-1(3x^2+15x+x+5)

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Answer:

95 square units

Step-by-step explanation:

Surface area of pyramid = 4(side area) + base

Solve for the base first.

Area of base = s*s = 5*5 = 25

Next solve for one of the sides.

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Step-by-step explanation:

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