Write a formula for the general term (the nth term) of the geometric sequence.-2, -6, -18, -54, -162, . . .
A. an = -2(3)n
B. an = -2(3n)
C. an = a1 + 3n
D. an = -2(3)n - 1
Answer: D
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Solve the problem.A loaf of bread is removed from an oven at 
and cooled in a room whose temperature is 
. If the bread cools to 
in 20 minutes, how much longer will it take the bread to cool to 
A. 9 min B. 20 min C. 8 min D. 28 min
List the numbers in increasing order from least to greatest.-7, -61, -73, -26
A. -61, -73, -7, -26 B. -73, -61, -26, -7 C. -7, -26, -61, -73 D. -7, -61, -73, -26
Find the compound interest earned by the deposit. Round to the nearest cent.$3000 at 5% compounded semiannually for 6 years
A. $479.08 B. $900.00 C. $1034.67 D. $1020.29
Factor when possible. If the polynomial is prime, say so.-3x + x2 - 54
A. (x - 9)(x + 6) B. (x + 9)(x + 6) C. (x + 9)(x - 6) D. (x - 9)(x - 6)