Factor completely. If the polynomial is prime, state this.x3 + 3x2 - 10x
A. x(x + 5)(x - 2)
B. (x2 + 2)(x - 5)
C. x(x - 5)(x + 2)
D. (x2 + 5)(x - 2)
Answer: A
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = - 6 and x = 6. The cross sections perpendicular to the x-axis are semicircles whose diameters run from 
to 
A. 288? B. 576? C. 144? D. 72?
Divide.6617 ÷ 8
A. 828 B. 827 R 7 C. 827 D. 827 R 1
Solve the problem.A building 230 feet tall casts a 100 foot long shadow. If a person looks down from the top of the building, what is the measure of the angle between the end of the shadow and the vertical side of the building (to the nearest degree)? (Assume the person's eyes are level with the top of the building.)
A. 23° B. 67° C. 26° D. 64°
Write the polynomial in descending order and identify its degree.x - 9x2
A. -8x2 ; degree: 2 B. 8x2 - x ; degree: 2 C. -9x2 + x ; degree: 2 D. 9x2 + x ; degree: 2