Simplify. Assume variables represent nonnegative values.
A. xy
B. 8xy
C. 8xy
D. 8xy
Answer: D
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Add or subtract horizontally.Add -5x4 - 6x3 - 3x2 + 6x - 9, -5x2 + 4x, and -5 + 3x2 + x3 - 2x4.
A. -7x4 - 5x3 + 5x2 + 10x - 14 B. -7x4 - 5x3 - 5x2 - 10x - 14 C. -7x4 - 5x3 - 5x2 + 10x - 14 D. -7x4 - 5x3 - 5x2 + 10x + 14
Sketch the graph of the function.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Find an equation for the tangent to the curve at the given point.h(x) = t3 - 16t + 5, (4, 5)
A. y = 32t + 5 B. y = 37t - 123 C. y = 5 D. y = 32t - 123
Solve the problem. Round your answer, if appropriate.One airplane is approaching an airport from the north at 183 km/hr. A second airplane approaches from the east at 297 km/hr. Find the rate at which the distance between the planes changes when the southbound plane is 35 km away from the airport and the westbound plane is 23 km from the airport.
A. -632 km/hr B. -474 km/hr C. -316 km/hr D. -158 km/hr