Find the exact value by using a sum or difference identity.sin 255°
A. - 
B. - 
C. 
D. 
Answer: B
Mathematics
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Solve.A population is growing at a rate proportional to its size. If the population is 126,000 initially and 193,000 after 12 years, how long will it take the population to double?
A. 21.3 years B. 19.5 years C. 18.1 years D. 20.3 years
Mathematics
Use the table to estimate the rate of change of y at the specified value of x.x = 1.
A. 1 B. 1.5 C. 0.5 D. 2
Mathematics
Solve the quadratic equation by completing the square.p2 - 16p = 0
A. 64 B. ±8 C. -16, 0 D. 0, 16
Mathematics
Solve the problem.?1 and ?2 are supplementary angles. What are the measures (to the nearest hundredth) of the two angles? 
A. ?1 = 30.33°, ?2 = 149.67° B. ?1 = 30.33°, ?2 = 151.67° C. ?1 = 30°, ?2 = 148.00° D. ?1 = 15.33°, ?2 = 74.67°
Mathematics