Find the real solutions, if any, of the equation. Use the quadratic formula.4x2 - x + 2 = 0
A. 
B. 
C. 
D. no real solution
Answer: D
Mathematics
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The graph of f(x) = ax2 + bx + c is given in the figure. Determine whether the discriminant is positive, negative, or zero.
A. Zero B. Negative C. Positive
Mathematics
Use the formula v = r? to find the value of the missing variable. Give an exact answer unless otherwise indicated.r = 4 cm, ? = 
radian per sec
A. 
cm per sec
B. 
cm per sec
C. 12? cm per sec
D. 
cm per sec
Mathematics
Graph the equation.f(x) = -5x2
A. 
B. 
C. 
D. 
Mathematics
Multiply and simplify. Assume that all variables represent nonnegative numbers.
(
- 
)
A. 
B. 8
C. 7
+ 7
D. 
- 
Mathematics