Find the exact value of the expression using the provided information. Find cos (? + ?) given that cos ? = 
and cos ? = 
and that ? and ? are between 0 and ?/2.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Subtract in the indicated base.
A. 9684 B. 3124 C. 3034 D. 3214
Mathematics
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 = - t3 + 2t2 - 2t, 0 ? t ? 2Find the body's speed and acceleration at the end of the time interval.
A. 2 m/sec, 0 m/sec2 B. 6 m/sec, -2 m/sec2 C. -6 m/sec, -8 m/sec2 D. 6 m/sec, -8 m/sec2
Mathematics
Insert <, >, or = to make the statement true.2.2 
4.6
A. > B. = C. <
Mathematics
Estimate the product or quotient by first rounding each decimal to the indicated place value.54.81 × 33.13
round each to the nearest ten
A. 150 B. 1500 C. 15 D. 1510
Mathematics