Find the requested probability.A fair coin is tossed 5 times. What is the probability of exactly 2 heads?
A. 0.3125
B. 0.1250
C. 0.0313
D. 0.0625
Answer: A
Mathematics
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Use the choices below to fill in the blank. Choices may be used more than once or not at all.
A formula for calculating a combination of n items taken r at a time is 
.
A. 
B. 
C. 
D. 
Mathematics
Sketch the graph of the curve by plotting points.x = 3 cos ?, y = - 3 sin ?; 
? ? ? 
A. 
B. 
C. 
D. 
Mathematics
Find the function value.Let g(x) = 
. Find g(-12.25).
A. 1
B. - 
C. 
D. 
Mathematics
Simplify.48 ÷ 0 + 24
A. 2 B. 72 C. 24 D. undefined
Mathematics