Solve the problem.The temperature at the North Pole was -47°F at 8 am. At 3 pm, it was 17°F. By how many degrees did the temperature rise?
A. by 30°F
B. by -64°F
C. by 64°F
D. by -30°F
Answer: C
Mathematics
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Expand the number to its natural form.8.27 × 10-3
A. 0.00827 B. 0.827 C. 0.000827 D. 0.0827
Mathematics
Graph the function to find the stated characteristic of the graph.Graph f(t) = - 3cos (2(t - 
)) in 
by 
. State the period.
A. 2?
B. - 
C. ?
D. 
Mathematics
Solve the problem.The polynomial 
measures the concentration of a dye in the bloodstream x seconds after it is injected. Does the concentration increase between 12 and 13 seconds?
A. No B. Yes
Mathematics
Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Three coins are tossed, and the number of heads is noted.
A. 
B. 
C. 
D. 
Mathematics