Combine like terms to simplify the expression.
a + 
b - 
a - 
b + 11
A. 
a + 
b + 11
B. 
a + 
b + 11
C. 
a + 
b + 11
D. 
a + 
b + 11
Answer: D
Mathematics
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Solve the problem.If f(x) = -3x + 1 and g(x) = 4x2 + 3x + 8, find g(f(-7)).
A. 162 B. 2010 C. 124 D. -548
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Write the expression as the cosine of an angle, knowing that the expression is the right side of the formula for 
with particular values for ? and ?.cos 
cos 
+ sin 
sin 
A. cos 
B. cos 
C. cos 
D. cos 
Mathematics
Solve and graph. Write the answer in set-builder notation.-6n + 9 > -7n + 11
A. {n
n ? 20}
B. {n
n ? 20}
C. {n
n < 2}
D. {n
n > 2}
Mathematics
Solve.
- 2 = 13
A. -5, 9 B. 17, 9 C. -9, 9 D. -21, 9
Mathematics