Multiply.9113 × 7
A. 63,791
B. 63,891
C. 63,801
D. 63,691
Answer: A
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Solve the problem.Ken is 6 feet tall and is walking away from a streetlight. The streetlight has its light bulb 14 feet above the ground, and Ken is walking at the rate of 1.3 feet per second. Find a function, d(t), which gives the distance Ken is from the streetlight in terms of time. Find a function, 
, which gives the length of Ken's shadow in terms of d. Then find 
.
A. (S ? d)(t) = 0.72t B. (S ? d)(t) = 2.2t C. (S ? d)(t) = 1.24t D. (S ? d)(t) = 0.98t
Decide if the given equation is a solution of the given differential equation.2xyy' + x2 = y2, x2 + y2 = -3x
A. Yes B. No
Simplify the exponential expression.(-10x3y8)2
A. 100x6y16 B. -100x6y16 C. 100x5y10 D. -10x6y16
Solve using matrices. x + y = -2
A. (-6, -4, -7) B. (6, -4, 3) C. (2, 4, 1) D. (2, -4, 1)