Simplify.240 ÷ 5 - 3
A. 120
B. 232
C. 45
D. 238
Answer: C
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Identify the vertex, axis of symmetry, and whether the parabola opens upward or downward.
A. (-3, 0); x = 0; Downward B. (0, -3); x = -3; Upward C. (-3, 0); x = 0; Upward D. (0, -3); x = 0; Upward
Round as indicated.7530 to the nearest hundred
A. 7400 B. 7510 C. 7500 D. 7600
Three neighbors need to locate their mailboxes so that the mail carrier will only need to make one stop each day for all three of them. They decide to choose a spot for the mailboxes so that each neighbor is required to walk the same distance from his/her home to the mailbox. If points A, B, and C represent the three homes, where should they place the mailboxes? Justify your answer.
Factor the four-term polynomial by grouping.6x + 54 + xy + 9y
A. (y + 9)(x + 6) B. (y + 9)(6x + y) C. (x + 9)(6 + y) D. (x + 9y)(6 + y)