Write the fraction as a decimal. If necessary, use repeating decimal notation.
A. 1.5
B. 1.25
C. 1
D. 0.8
Answer: B
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Multiply. Assume that all variables represent nonnegative real numbers.(
- 2)(
- 4)
A. 
- 6
+ 8
B. 
+ 8
C. -5
+ 8
D. 
- 4
- 2
+ 8
Solve the problem.The population size of a culture of bacteria triples every day such that its size is modeled by the sequence 
where n is the number of the day just beginning. Find the size of the culture at the beginning of the third day and the size of the culture originally.
A. 90 bacteria; 10 bacteria originally
B. 90 bacteria; 3
bacteria originally
C. 270 bacteria; 30 bacteria originally
D. 270 bacteria; 10 bacteria originally
Multiply. Assume that no radicands were formed by raising negative numbers to even powers.4
(
+ 
)
A. 4
+ 7
B. 4
+ 28
C. 28
+ 28
D. 4
+ 7
For the given equation, determine the values of a, b, and c, the direction in which the parabola opens, and the y-intercept.f(x) = 7x2 + 3x + 9
A. 
B. 
C. 
D. 