Find the exact value of the expression if ? = 30°. Do not use a calculator.f(?) = cos ?Find 11f(?).
A. - 
B. - 
C. 
D. 
Answer: D
Mathematics
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Perform the indicated operation and express with the proper accuracy and precision. The first number given is approximate and the second number is exact. (Use calculator if needed).5.526(29)
A. 160.3 B. 160.254 C. 160 D. 160.25
Mathematics
Express the number in scientific notation.3,672,000,000
A. 3.672 × 106 B. 3672 × 106 C. 367.2 × 107 D. 3.672 × 109
Mathematics
Solve the problem.In triangle ABC, the angle C is six times as large as angle A. The measure of angle B is 
greater than that of angle A. Find the measure of the angles.
A. 17° , 78° and 102° B. 17° , 61° and 102° C. 17° , 78° and 85° D. 17° , 61° and 119°
Mathematics
Find the following.Find -(-x) when x is 34.
A. 0
B. 
C. 34
D. -34
Mathematics