Use the quadratic formula to find any x-intercepts on the graph of the equation.2x2 + 8x = -7
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use cross products to determine whether the proportion is true or false.
= 
A. True B. False
Mathematics
Solve each problem.A rectangular field is to be enclosed on four sides with a fence. Fencing costs 
for two opposite sides, and 
for the other two sides. Find the dimensions of the field of area 
that would be the cheapest to enclose.
A. 15.7 ft @ $7 by 54.9 ft @ $2 B. 8.4 ft @ $7 by 102.6 ft @ $2 C. 54.9 ft @ $7 by 15.7 ft @ $2 D. 102.6 ft @ $7 by 8.4 ft @ $2
Mathematics
Eliminate the parameter t from the following and then sketch the graph:
?
?
A. 
B.
C.
D.
E.
Mathematics
Graph the system of inequalities.y ? - 
x + 54x - 2y > -5
A. 
B. 
C. 
D. 
Mathematics