Multiply.3i(3 - 5i)
A. 9i - 15i2
B. 9i - 15
C. 15 + 9i
D. 9i + 15i2
Answer: C
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Explain how to obtain the graph of the given quadratic function from the graph of 
f(x) = x2 - 4
A. Take the graph of y = x2 and shift it 4 units down. B. Take the graph of y = x2 and shift it 4 units to the right. C. Take the graph of y = x2 and shift it 4 units up. D. Take the graph of y = x2 and shift it 4 units to the left.
Solve the problem.A boat heads upstream a distance of 30 miles on the Mississippi river, whose current is running at 5 miles per hour. If the trip back takes an hour less, what was the speed of the boat in still water? Give the answer rounded to two decimal places, if necessary.
A. 18.03 mph B. 6 mph C. 16.58 mph D. 15 mph
Determine the most appropriate metric unit to go in the blank. Choose from km, m, cm, mm, L, ml, kg, g, and mg.The baby weighs 3.8 _____.
A.
| L |
B.
| kg |
C.
| mg |
D. g
Find the integral.
