Solve the problem.Jeff studied math for 
history for 
and physics for 
How long did he study?
A. 1
hr
B. 
hr
C. 
hr
D. 5
hr
Answer: D
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Find a value of a so that f is continuous at c, or indicate this is impossible.Let f(x) = (sin x)x, x ?0. Extend the definition of f to x = 0 so that the extended function is continuous there.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
The function s = f(t) gives the position of a body moving on a coordinate line, with s in meters and t in seconds.s = 7t - t2, 0 ? t ? 7Find the body's speed and acceleration at the end of the time interval.
A. 21 m/sec, -14 m/sec2 B. 7 m/sec, - 2 m/sec2 C. 7 m/sec, -14 m/sec2 D. -7 m/sec, - 2 m/sec2
Name the property illustrated by the statement.(4 ? 4) ? 7 = 4 ? (4 ? 7)
A. commutative property of multiplication B. identity element for multiplication C. distributive property D. associative property of multiplication
Divide, when possible.
A. 728 B. 728 r2 C. 728 r1 D. 727 r6