Solve the formula for the specified variable.d = rt for r
A. r = 
B. r = 
C. r = d - t
D. r = dt
Answer: B
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If a square measures four inches on each side, what is its area?
A. 8 square inches B. 4 inches C. 4 square inches D. 16 inches E. 16 square inches
Solve the problem.The distance D in feet that an object has fallen after t seconds is given by D(t) = 16t2. (i) Evaluate D(2) and D(5). (ii) Calculate the slope of the secant line through D(2) and D(5) on the graph of D and interpret the answer in terms of an average rate of change of D from 2 to 5.
A. (i) 32, 80 (ii) 112; the object's average speed from 2 to 5 seconds is 112 ft/sec. B. (i) 64, 400 (ii) 48; the object's average speed from 2 to 5 seconds is 48 ft/sec. C. (i) 32, 80 (ii) 48; the object's average speed from 2 to 5 seconds is 48 ft/sec. D. (i) 64, 400 (ii) 112; the object's average speed from 2 to 5 seconds is 112 ft/sec.
Find the indicated matrix.Let A = 
and B = 
. Find AB.
A. 
B. not defined
C. 
D. 
Graph the function.f(x) = -2x3(x - 1)2(x + 2)
A. 
B. 
C. 
D. 