Choose the closest estimate.The tablet contained 570 
of vitamin C.
A. g
B. kg
C. mg
D. L
E. mL
Answer: C
Mathematics
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Find the average value of the function f over the region R.f(x, y) = e5xR: 0 ? x ? 
, 0 ? y ? 
A. 
B. 2e - 1
C. e - 1
D. 
Mathematics
Solve the problem.Two low-frequency sound waves with similar frequencies, producing the pressures 
and 
combine to form a pressure P = P1 + P2 . The variable t is time measured in seconds. Graph P in 
by 
and use the graph to determine the frequency of the displayed beats.
A. 6 beats per second B. 7 beats per second C. 3 beats per second D. 10 beats per second
Mathematics
Determine whether the following is true or false.A - B = (A ? B) - B
A. True B. False
Mathematics
Graph.16x2 - 9y2 + 128x - 54y + 31 = 0
A. 
B. 
C. 
D. 
Mathematics