Graph the system of inequalities. Indicate the solution by shading.2x + 3y ? 6  x - y ? 3  y ? 2

A.

B.

C.

D.


Answer: C

Mathematics

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Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = 5i + 8j,  w = -3i + 5j

A. 179.0° B. 92.1° C. 63.0° D. 64.0°

Mathematics

Find the product.(7a + 8c)(7a - 8c)

A. 49a2 - 112ac - 64c2 B. 49a2 - 64c2 C. 7a2 - 8c2 D. 49a2 + 112ac - 64c2

Mathematics

Determine the intervals on which the function is increasing, decreasing, and constant.

A. Decreasing on (-?, ?) B. Increasing on (0, ?); Decreasing on (-?, 0) C. Increasing on (-?, 0); Decreasing on (0, ?) D. Increasing on (-?, ?)

Mathematics

s is the distance (in ft) traveled in time t (in s) by a particle. Find the velocity and acceleration at the given time.s = 7t3 + 5t2 + 9t + 2, t = 1

A. v = 11 ft/s, a = 31 ft/s2 B. v = 31 ft/s, a = 11 ft/s2 C. v = 52 ft/s, a = 40 ft/s2 D. v = 40 ft/s, a = 52 ft/s2

Mathematics