Determine the values of the given functions as indicated rounded to four decimal places. Find tan 15° by using 15° = 60° - 45°.
A. 0.9330
B. 3.7321
C. 0.2679
D. 0.2588
Answer: C
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Use the distributive property to multiply. Then, if possible, simplify the resulting expression.4(a + b)
A. 4ab B. 8ab C. 4a + 4b D. 4a + b
Find the exact value of the trigonometric expression without the use of a calculator.sec
A. - 
B. - 
C. 
D. - 
Multiply. Write the answer in simplest form.27x2 ? 
A. 
B. 12x2
C. 
D. 16x2
Solve the problem.The value V, in dollars, of a shopkeeper's inventory software program is given by the formula 
where t is the number of years since the shopkeeper first bought the program. Find the number of years after which the value of the inventory program is $280 by solving the equation 
graphically, using the following graph. 
A. 9 years B. 6 years C. 10 years D. 550 years