Find the exact value of the expression if ? = 30°. Do not use a calculator.f(?) = cos ?Find 7f(?).
A. - 
B. 
C. - 
D. 
Answer: D
Mathematics
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Rewrite the following number using digits.One hundred million, six thousand
A. 1006 B. 100,006,000 C. 106,000,000 D. 1,600,000
Mathematics
Solve the problem.What is the difference in area covered by a single 12-inch windshield wiper operating with a central angle of 
compared to a pair of 2-inch wipers operating together each having a central angle of 
Round to the nearest hundredth.
A. 165.88 in.2 B. 154.57 in.2 C. 155.80 in.2 D. 150.80 in.2
Mathematics
Solve.Use the formula F = 
C + 32 to write -40° C as degrees Fahrenheit.
A. -40.2° F B. -40° F C. -4.6° F D. -104° F
Mathematics
Provide an appropriate response.True or False: 6 is a rational number.
Fill in the blank(s) with the appropriate word(s).
Mathematics