Find the exact value of the expression if ? = 45°. Do not use a calculator.f(?) = cos ?Find 
.
A. 
B. 10
C. 
D. 
Answer: C
Mathematics
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Determine whether or not the number is written in scientific notation.0.18 × 107
A. in scientific notation B. not in scientific notation
Mathematics
Find an expression equivalent to the one given.
A. 
B. - 
C. 
D. - 
Mathematics
Find the exact value of the trigonometric expression without the use of a calculator.sin
A. 
B. 
C. - 
D. 
Mathematics
Solve the absolute value inequality. Write your answer in interval notation.|8k - 6| ? 5
A. 
? 
B. 
C. 
D. 
Mathematics