Solve the problem.In how many ways can a group of 7 students be selected from 8 students?
A. 56
B. 7
C. 1
D. 8
Answer: D
Mathematics
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Use a formula to express w as a function of t if 
and 
.
?
A. 
B. 
C. 
D. 
Mathematics
Solve the polynomial inequality and graph the solution set on a number line. Express the solution set in interval notation.14x2 < 13x + 1
A. 
B. (-?, -1) ? 
C. 
? (1, ?)
D. 
Mathematics
Solve the equation for x.sin-1 x + cos-1 
= ?
A. 
B. {0}
C. 
D. {1}
Mathematics
Find the perimeter.
A. 41 in. B. 40 in. C. 38 in. D. 20 in.
Mathematics