Solve the problem.A certain radioactive isotope has a half-life of 347 years. Determine the annual decay rate, k.
A. 0.135%
B. 0.195%
C. 0.265%
D. 0.2%
Answer: D
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Expand.(
+ 1)6 + (
- 1)6
A. 370
B. 370
C. 208
D. 416
Find the absolute extreme values of the function on the interval.F(x) = 
, -1 ? x ? 64
A. absolute maximum is 0 at x = 0; absolute minimum is 4 at x = 64 B. absolute maximum is 4 at x = 64; absolute minimum is -4 at x = -64 C. absolute maximum is 4 at x = -64; absolute minimum is 0 at x =0 D. absolute maximum is 4 at x = 64; absolute minimum is 0 at x =0
Find an equation for the ellipse described. Graph the equation.Vertices at (5, -4) and (5, 8); length of minor axis is 6
A. 
+ 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Find the vertex, focus, and directrix of the parabola. Graph the equation.y2 = 16x
A. vertex: (0, 0)
focus: (0, 4)
directrix: y = -4
B. vertex: (0, 0)
focus: (0, 4)
directrix: y = -4
C. vertex: (0, 0)
focus: (-4, 0)
directrix: x = 4
D. vertex: (0, 0)
focus: (4, 0)
directrix: x = -4