Simplify.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use the substitution method to solve the system.
x + 
y = -17
x + 3y = -28
A. (-20, -23) B. (-16, -15) C. (-16, -20) D. (-20, -6)
Mathematics
Sketch the graph of the quadratic function.f(x) = 2(x + 4)2 - 1
A. 
B. 
C. 
D. 
Mathematics
Simplify. Do not use negative exponents in your answer.511? 5-4
A. 511 B. 57 C. 54 D. 53
Mathematics
Evaluate without using a calculator.sin ?, if cos ? = 
and tan ? < 0
A. - 
B. - 
C. - 
D. - 
Mathematics