Solve the inequality. Express your answer using interval notation.10 ? 2x + 2 ? 16
A. (-7, -4)
B. (4, 7)
C. [-7, -4]
D. [4, 7]
Answer: D
Mathematics
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Express the sum in sigma notation.- 
+ 
- 
+ 
- 
A. 
B. 
C. 
D. 
Mathematics
Find the exact value of the product.cos 45° cos 15°
A. 
B. 
C. 
D. 
Mathematics
Solve.2x2 = 121
A. ± 
B. ± 
C. ± 
D. 
Mathematics
For the pair of functions, find the indicated domain.For f(x) = 
and g(x) = 
Find the domain of fg.
A. (2, 5) ? (5, ?) B. [0, 5) ? (5, ?) C. [2, 5) ? (5, ?) D. [2, ?)
Mathematics