Perform the desired operation. Write the answer in the form a + bi.(7 - 3i)2
A. 49 - 42i + 9i2
B. 58 - 42i
C. 40 - 42i
D. 40
Answer: C
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Find the quotient.
A. 16 R 4 B. 15 R 6 C. 16 R 5 D. 15
Solve the problem. Round to the nearest cent.A sewing supply store purchases thread at a list price of $180 per 100 spools. The supplier offers a trade discount of 10/33
. Find the net cost of 200 spools of thread.
A. $216.00 B. $240.00 C. $0.54 D. $108.00
Solve the problem.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.
A. 80 mph B. 20 mph C. 50 mph D. 40 mph
Describe the behavior of the function's graph at its x-intercepts.f(x) = (x - 3)2(x + 7)
A. Does not cross at (7, 0) , crosses at (-3, 0) B. Does not cross at (3, 0) , crosses at (-7, 0) C. Crosses at (3, 0) and (-7, 0) D. Does not cross at (3, 0) or (-7, 0)