Factor the expression completely, if possible.r6 + 8t3
A. (r2 + 2t)(r4 - 2r2t + 4t2)
B. (r - 2t)(r2 + 2rt + 4t2)
C. (r + 2t)(r2 - 2rt + 4t2)
D. (r2 - 2t)(r4 + 2r2t + 4t2)
Answer: A
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?
A. May converge or diverge B. Always converges C. Always diverges
Identify the type of surface represented by the given equation.
+ 
= 
A. Ellipsoid
B. Paraboloid
C.
| Hyperbolic paraboloid |
D. Elliptic cone
Solve the problem.A line from the top of a cliff to the ground passes just over the top of a pole 7.0 ft high and meets the ground at a point 8.0 ft from the base of the pole. If the point is 88 ft from the base of the cliff, how high is the cliff? Round to the nearest unit.
A. 6 ft B. 616 ft C. 77 ft D. 4928 ft
Use Cramer's Rule (if applicable) to solve the system of equations.
A. {(-7, 2)} B. {(2, 7)} C. {(7, 2)} D. {(-2, -7)}