? is a central angle that cuts off an arc of length s. Find the radius of the circle if ?= 8, s = 5 ft.
?
A. 0.595 ft
B. 0.615 ft
C. 0.625 ft
D. 1.025 ft
E. 0.825 ft
Answer: C
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Solve the inequality.For the function h(x) = x3 - 3x2, solve h(x) ? 0.
A. (-?, 0] ? [3, ?) B. (0, 3] C. [3, ?) D. (-?, 3]
Solve the problem.If P dollars are invested at a simple interest rate r (in decimals), the amount A that will be available after t years is A = P + Prt. Find the total amount in an account if $400 is invested at 19.1% simple interest for 3.5 years.
A. $267.40 B. $667.40 C. $473.30 D. $476.40
The function f is one-to-one. Find its inverse.f(x) = x2 + 4, x ? 0
A. f-1(x) = 
, x ? -4
B. f-1(x) = 
- 4, x ? 0
C. f-1(x) = 
, x ? 4
D. f-1(x) = 
- 4, x < 0
Plot the ordered pair. State in which quadrant or on which axis the point lies.(6, -2)
A. quadrant IV
B. quadrant I
C. quadrant II
D. quadrant III