Solve the problem.How many ways can a committee of 4 be selected from a club with 12 members?
A. 495
B. 248
C. 24
D. 11,880
Answer: A
Mathematics
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Determine whether or not the equation is quadratic.x(x - 4) = 9
A. Quadratic. B. Not quadratic.
Mathematics
The percent of a certain brand of computer chips that will fail after t years of use is estimated to be
?
.
?
What percent of this brand of computer chips are expected to be usable after 6 years?
?
A. 71.3% B. 56.7% C. 69.9% D. 64.2%
Mathematics
Multiply.
? 
A. x4
B. 
C. 5x4
D. 
Mathematics
If 
, find sin(-?).
What will be an ideal response?
Mathematics