Simplify the expression. If any variables exist, assume that they are positive and write your answer in radical notation.
? 
A. 
B. x
C. 
D. x
Answer: B
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An airplane flies from one city in a straight line to another city, which is 360 kilometers north and 150 kilometers west of first city. How far does the plane fly? ?
A. 150 km B. 390 km C. 255 km D. 360 km E. 350 km
Factor, if possible.18x4 + 63x3 - 36x2
A. 9x2(2x - 1)(x + 4) B. (18x2 - 9)(x2 + 4) C. 9x(2x + 1)(x - 4) D. x2(2x - 1)(9x + 36)
Find all solutions of the equation in the interval [0°, 360°). Round the answers to the nearest tenth of a degree.cot (? - 30°) = -9
A. {203.7°} B. {216.3°} C. {36.3°} D. {36.3°, 216.3°}
Answer the following statement(s) true (T) or false (F)
1. Any angle inscribed in a semicircle must be a right angle.
2. If the central angle of a sector with radius 10" measures 60°, then the area of the sector is 5/3? square inches.
3. The measure of an inscribed angle, ?A, in a circle is twice the measure of a second inscribed
angle, ?B, in the same circle. Then the arc intercepted by ?A is twice as long as the arc intercepted by ?B.
4. If P is the midpoint of chord AB in circle O, then ?OPB = 90°.
5. If two chords in circle O, MN and XY, intersect at P then ?MPX = 