Simplify the expression.
A. 3z - 5
B. 3z - 40
C. 3z + 5
D. 24z - 5
Answer: A
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Find the area of a sector of a circle with radius r and central angle ?. Round your answer to one decimal place.? = 
, r = 5.0 ft
A. 5.2 ft2 B. 11.0 ft2 C. 52.4 ft2 D. 26.2 ft2
Find the standard equation of the ellipse shown in the figure. Identify the coordinates of the vertices, endpoints of the minor axis, and the foci.
A. 
+ 
= 1; V(0, ±5, 0); U(0, ±3); F(±4, 0)
B. 
+ 
= 1; V(±4, 0); U(0, ±3); F(±
, 0)
C. 
+ 
= 1; V(0, ±4, 0); U(±3, 0); F(0, ±
)
D. 
+ 
= 1; V(0, ±5); U(±3, 0); F(±5, 0)
Provide an appropriate response.You have two investment opportunities. You can invest $6000 at 12% compounded monthly or you can invest $6100 at 12.1% compounded quarterly. Which has the better effective rate of interest? Use a graphing calculator to graph both amounts as a function of time in years. Which is the better investment over twenty years?
What will be an ideal response?
Find all real solutions to the equation.
= x - 7
A. {12} B. {3} C. {-9} D. {3, 12}