Use the quadratic formula to solve the equation.z2 + 10z + 3 = 0
A. -5 ± 
B. 5 + 
C. -10 + 
D. 5 ± 
Answer: A
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Solve the problem.Jack borrowed $340 from his brother. Jack's brother wants 6 monthly payments of 
to repay the loan. How much extra is Jack's brother charging for the loan?
A. $200 B. $540 C. $110 D. $640
Solve the problem.The resistance of a wire varies directly as the length of the wire and inversely as the square of the diameter of the wire. A 20 foot length of wire with a diameter of 
has a resistance of 
What would the resistance be for a 
length, with diameter 
of the same kind of wire ?
A. 612 ohms B. 597.5 ohms C. 600 ohms D. 593 ohms
Draw the vector V that goes from the origin to the given point. Then write V in component form 
.
?
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Solve the problem.A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the height of the silo is 111 feet and the radius of the hemisphere is r feet, express the volume of the silo as a function of r.
A. V(r) = ?(111 - r) + 
?r2
B. V(r) = 111?r2 + 
?r3
C. V(r) = ?(111 - r)r3 + 
?r2
D. V(r) = ?(111 - r)r2 + 
?r3