Write the number in scientific notation.63,000,000
A. 6.3 × 10-7
B. 6.3 × 10-6
C. 6.3 × 107
D. 6.3 × 106
Answer: C
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Find all vertical asymptotes of the given function.f(x) = 
A. x = 64, x = -5 B. x = -8, x = 8, x = -5 C. x = 0, x = 64 D. x = -8, x = 8
Graph the solution of the quadratic inequalities on a number line and write the solution in interval notation. (x - 5)(x + 2) > 0
A. (-?, -2) ? (5, ?)
B. (-2, 5)
C. (-?, -5) ? (2, ?)
D. (-2, ?)
Solve the problem.Find the measure (in radians) of a central angle of a sector of area 55 square inches in a circle of radius 8 inches. Round to the nearest hundredth.
A. 0.86 radians B. 1.72 radians C. 2.58 radians D. 3.44 radians
Solve the problem.Standing 16 feet from a streetlight, a 7-foot-tall tree casts a 4-foot shadow. How tall is the streetlight?
A. 35 ft B. 42 ft C. 28 ft D. 21 ft