Solve the problem.If u = -9i - 2j and v = -3i + 7j, find u - v.
A. -6i - 9j
B. -8i + 5j
C. -7i + 5j
D. -12i + 5j
Answer: A
Mathematics
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For an arc length s, area of sector A, and a central angle ? of a circle of radius r, find the indicated quantity.r = 81.6 cm, ? = 
radians, find A
A. 1310 cm2 B. 16.1 cm2 C. 2620 cm2 D. 417 cm2
Mathematics
Using the Law of Cosines, find angle B if a = 28.7, b = 31.5, and c = 11.6.
a. 152.9ø b. 37.6ø c. 92.9ø d. 24.5ø e. 139.2ø
Mathematics
Find the outside surface area, when ?a? = 1, ?b? = 4, ?c? = 1.
?
?
__________ m2
Fill in the blank(s) with the appropriate word(s).
Mathematics
Use the figure to solve the inequality.g(x) ? 0
A. {x|-2 < x < 2}; (-2, 2) B. {x|x ? -2 or x ? 2}; (-?, -2] or [2, ?) C. {x|x < -2 or x > 2}; (-?, -2) or (2, ?) D. {x|-2 ? x ? 2}; [-2, 2]
Mathematics