Factor by grouping.20x6 + 7x3 - 6
A. 20(x3 - 2)(x3 + 3)
B. (4x3 + 1)(5x3 - 6)
C. (5x3 + 2)(4x3 - 3)
D. (4x3 + 3)(5x3 - 2)
Answer: D
Mathematics
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Write an expression for the general or nth term, an, of the arithmetic sequence.-6, -1, 4, 9, . . .
A. an = 5n - 11 B. an = 5n - 6 C. an = 5(n+1) - 6 D. an = -5n - 11
Mathematics
Write percent as decimal.800%
A. 80 B. 8 C. 800 D. 0.8
Mathematics
Solve the problem.Suppose all items in an ice cream truck cost $0.85 per item. (a) Fill in the table with the correct response for the cost f(x) of purchasing x items. (b). Write the linear function that gives a rule for finding the cost. 
A.
(a)  | (b) f(x) = 0.85 |
B.
(a)  | (b) f(x) = 0.85x |
C.
(a)  | (b) f(x) = 0.85x + 0.85 |
D. None of these
Mathematics
Solve the inequality by using the method of your choice. State the solution set in interval notation and graph it.x2 - 8 ? 7x
A. [-8, -1]
| -8? | -1 |
B. [1, 8]
| 1? | 8 |
C. [-1, 8]
| -1? | 8 |
D. [-8, 1]
| -8? | 1 |
Mathematics