Complete.15 wk = ___ hr
A. 2520
B. 15
C. 360
D. 105
Answer: A
Mathematics
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Find the conjugate of each complex number.-2 + 4j
A. 2 - 4j B. 4 - 2j C. -2 - 4j D. 2 + 4j
Mathematics
Use a calculator to verify the value found by using the double-angle formulas.Find cos 298° directly and by using functions of 149°.
A. -0.8999 B. -1.7144 C. 0.4695 D. -0.8572
Mathematics
Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = -2x - 1, [0, 2], left-hand endpoint
A. 
B. 
C. 
D. 
Mathematics
Evaluate the improper integral.
A. 64 B. -8 C. 8 D. -64
Mathematics