Find the exact value of the expression. Do not use a calculator.
, if ? = 45°
A. 
B. 6
C. 
D. 
Answer: C
Mathematics
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Complete the blank with either ? or ? to make the statement true.0 {-2, 2, 4, 18, 28}
A. ? B. ?
Mathematics
Solve the problem.A box contains 28 widgets, 4 of which are defective. If 4 are sold at random, find the probability that (a) all are defective (b) none are defective.
A. 
; 
B. 
; 
C. 
; 
D. 
; 
Mathematics
Solve.x + 
= 
A. 
B. 
C. 
D. 1
Mathematics
Graph the solution set of the system of inequalities or indicate that the system has no solution.
A. 
B. 
C. 
D. 
Mathematics