The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds).s = -7 + 11 cos tFind the body's acceleration at time t = ?/3 sec.
A. 
m/sec2
B. - 
m/sec2
C. 
m/sec2
D. - 
m/sec2
Answer: D
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Compute the gradient of the function at the given point.
A. ?f = 160i - 30j B. ?f = 40i - 30j C. ?f = 80i - 30j D. ?f = 40i + 10j
Decide whether or not matrix A and matrix B are inverses.A = 
and B = 
A. Yes B. No
Provide an appropriate response.Two species of monkey, A and B, live in one enclosure at the zoo where they are fed two vitamin supplements. Each day they receive 350 grams of the first supplement and 700 grams of the second supplement. Each monkey of species A requires 25 g of the first supplement and 50 g of the second supplement. Each monkey of species B requires 15 g of the first supplement and 30 g of the second supplement. How many of each species of monkey will the enclosure support so that all of the supplements are consumed each day?
What will be an ideal response?
Solve the system.
A. x = 0, y = -6, z = 1 B. x = 0, y = 6, z = -1 C. x = 3, y = 0, z = -4 D. x = -3, y = 0, z = 4