Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(
+ 
)(
- 
)
A. a + b
B. a - 2
+ b
C. a - b
D. a + 2
- b
Answer: C
Mathematics
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Find the exact value of the trigonometric expression without the use of a calculator.sin 15° cos 105° + cos 15° sin 105°
A. - 
B. - 
C. 
D. 
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Determine whether the function is one-to-one by graphing and using the horizontal line test.f(x) = 
A. Yes B. No
Mathematics
Simplify.-
A. 49 B. -49 C. 7 D. -7
Mathematics
Fill in the digits for the given place values in the following whole number.4,116,822millions: thousands:
A. Millions: 4, thousands: 1 B. Millions: 8, thousands: 2 C. Millions: 4, thousands: 6 D. Millions: 1, thousands: 6
Mathematics