Find the amplitude, period or displacement.Find the period of y = 4 cos 
.
A. 
B. ?
C. 4
D. 
Answer: A
Mathematics
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Find the limit.
A. -? B. 0 C. ? D. 2/3
Mathematics
Find the amplitude, period or displacement.Find the amplitude of y = -3 cos 
.
A. 3
B. -12
C. 
D. 4
Mathematics
Find the domain of the rational function.f(x) = 
A. All real numbers except 13, -3, and 
B. All real number except -13 and -3
C. All real numbers except 13 and -3
D. All real numbers except 13, -3, 
, and 0
Mathematics
Find the indicated probability. Round as indicated.Find the probability of at least 2 girls in 7 births. Assume that male and female births are equally likely and that the births are independent events. Estimate the probability to three decimal places if necessary.
A. 0.164 B. 0.773 C. 0.938 D. 0.063
Mathematics