Evaluate the expression for the given replacement values.2 + 2x - y
x = 4, y = -5
A. 20
B. 9
C. 15
D. 21
Answer: C
Mathematics
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Write the statement with the inequality symbol pointing in the opposite direction.
?
?
A.
B.
C.
D.
E.
Mathematics
Solve the system by elimination.9x + 8y = 0 6x - 2y = 0
A. {(0, 1)} B. {(2, 1)} C. {(0, 0)} D. ?
Mathematics
Use the binomial theorem to expand the expression.(a - b)6
A. a6 - 6a5b - 15a4b2 - 20a3b3 - 15a2b4 - 6ab5 - b6 B. -a6 + 6a5b - 15a4b2 + 20a3b3 - 15a2b4 + 6ab5 - b6 C. a6 + 6a5b + 15a4b2 + 20a3b3 + 15a2b4 + 6ab5 + b6 D. a6 - 6a5b + 15a4b2 - 20a3b3 + 15a2b4 - 6ab5 + b6
Mathematics
Divide and simplify.
÷ 
A. 
B. 
C. 
D. 
Mathematics