Evaluate the expression, if possible.811/2
A. 9
B. 4.5
C. 18
D. 36
Answer: A
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Convert the units.321 g = 
kg
A. 321,000 kg B. 0.321 kg C. 32,100 kg D. 0.0321 kg
Solve the problem.The speed of a ball dropped from a tower is given by the linear function y = 32x where y is in feet per second and x is the number of seconds since the ball was dropped. Find and interpret the slope and y-intercept of the linear equation.
A. m = 32; The speed of the ball is 32 feet per second. b = 0; When the ball is dropped at x = 0, the ball has fallen 0 feet. B. m = 0; The speed of the ball does not increase as time passes. b = 32; At time x = 0, the ball has fallen 32 feet. C. m = 32; The speed of the ball increases 32 feet per second every second. There is no y-intercept to interpret. D. m = 32; The speed of the ball increases 32 feet per second every second. b = 0; The speed of the ball was 0 the moment it was dropped.
Factor.x2 - 8x + 64
A. (x + 8)2 B. (x - 8)2 C. (x + 8)(x - 8) D. Prime
Find the indicated matrix.Let A = 
and B = 
. Find AB.
A. not defined
B. 
C. 
D. 