Add.(3a3 + 6a2) + (9a3 + 8a2)
A. 12a6 + 14a4
B. 26a5
C. 12a3 + 14a2
D. 26a10
Answer: C
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Provide an appropriate response.The formula for finding simple interest is I = PRT, where I is the amount of interest charged, P is the principal amount borrowed, R is the percent of interest charged, and T is the length of time of the loan. If the interest is $315, the rate is 7.2% and the time is 1
years, how much money was borrowed?
Fill in the blank(s) with the appropriate word(s).
Solve the problem.A merchant has coffee worth $30 a pound that she wishes to mix with 30 pounds of coffee worth $80 a pound to get a mixture that can be sold for $40 a pound. How many pounds of the $30 coffee should be used?
A. 60 pounds B. 75 pounds C. 150 pounds D. 120 pounds
Provide an appropriate response.Determine the values of constants a and b so that f(x) = ax2 + bx has an absolute maximum at the point 
A. a = 1, b = 8 B. a = -1, b = 4 C. a = -1, b = 8 D. a = 1, b = 4
Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.-111°
A. 249°; -471° B. 249°; -291° C. 69°; -291° D. 69°; -201°