Decide whether the figure is convex or concave.
A. Convex
B. Concave
Answer: A
Mathematics
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Find the angle between v and w. Round to one decimal place, if necessary.v = 3i + 2j + k and w = 4i + 8j + 2k
A. 61° B. 68.8° C. 29° D. 82.8°
Mathematics
Fill in the blank with one of the words or phrases listed below.
A 
can be written in the form ax + b < c, (or >, ?, ?).
A. reversed B. linear inequality in one variable C. linear equation in one variable D. formula
Mathematics
Find the center (h, k) and radius r of the circle with the given equation. x2 + y2 + 4x - 8y + 20 = 64
A. (h, k) = (4, -2); r = 8 B. (h, k) = (-4, 2); r = 64 C. (h, k) = (-2, 4); r = 8 D. (h, k) = (2, -4); r = 64
Mathematics
Determine if the second number is a factor of the first number.36; 17
A. Yes B. No
Mathematics