Sara F.

Mechanical Engineering Student

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Trigonometry

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Question:

find the lengths of the sides of a right triangle if the area is 400 and the given lengths are height: 2x base: x and hypotenuse: H.

Sara F.

Answer:

1/2(2x)(x) = 400 x^2 = 400 x = 20 so base = 20, and height = 40 hypotenuse = (20^2 +40^2)^(1/2) = 45

Calculus

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Question:

the limit of x approaches 2 if 3x^2+6x+3

Sara F.

Answer:

3(2^2) + 6(2) +3 =3(4)+12+3 =12+12+3 =27

Algebra

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Question:

5(-3x - 2) - (x - 3) = -4(4x + 5) + 13

Sara F.

Answer:

-15x-10-x+3 = -16x-20+13 -16x-7= -16x -7 0=0

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