For the problem below, ? is a central angle in a circle of radius r. Find the length of arc s cut off by ?.
?
?= 315°, r = 5 inches.
?
A. s = 29 inches
B. s = 27.5 inches
C. s = 31 inches
D. s = 28.5 inches
E. s = 29.5 inches
Answer: B
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Find the vertex of the parabola.f(x) = x2 - 4x + 11
A. (0, 2) B. (7, 0) C. (7, 2) D. (2, 7)
A ship is headed due north at a constant 15 miles per hour. Because of the ocean current, the true course of the ship is 12°. If the currents are a constant 12 miles per hour, in what direction are the currents running? Apply the rules regarding the use of significant digits after all computations are complete. ?
A. S 3° E B. ?S 27° E, N 24° E C. ?N 22° E, N 3° E D. ?S 20° E E. ?N 27° E, S 3° E
The sequence is defined recursively. Write the first four terms.a1 = 5; an = an-1 - 1
A. a1 = 5, a2 = 4, a3 = 3, a4 = 2 B. a1 = 5, a2 = 6 , a3 = 7 , a4 = 8 C. a1 = -1, a2 = -2, a3 = -3, a4 = -4 D. a1 = 5, a2 = 6 , a3 = 5 , a4 = 4
Solve the inequality and graph the solution set.
> 8
A. 
? 
B. 
? 
C. 
D. 
