Express the given complex number in polar form.2.41e0.008jr
A. 2.41 ( cos 138.1° + j sin 138.1°)
B. 0.008 ( cos 138.1° + j sin 138.1°)
C. 2.41 ( cos 0.5° + j sin 0.5°)
D. 0.008 ( cos 0.5° + j sin 0.5°)
Answer: C
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Solve the problem.Assume that a watermelon dropped from a tall building falls 
in t sec. Find the watermelon's average speed during the first 5 sec of fall and the speed at the instant 
A. 160 ft/sec; 81 ft/sec B. 40 ft/sec; 80 ft/sec C. 81 ft/sec; 162 ft/sec D. 80 ft/sec; 160 ft/sec
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.
1/4
A. 4ab2
B. 
C. 
D. 
Estimate an answer to the problem.An advertisement states that television sets are on sale at B&G Electronics. The sale prices are: 
set, $147.99; 19-inch set, $208.95; 
set, $231.99; 
set, $289.97; 
set, $519.97. Estimate to the nearest ten how much more a 
style="vertical-align: -4.0px;" /> set costs than a 
set.
A. $0
B. $10
C. $30
D. $20
Graph the union of the sets 
and 
.
A. 
B. 
C. 
D. 
E. none of these