Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = x2 - 3
A. maximum; -3
B. minimum; 0
C. maximum; 0
D. minimum; -3
Answer: D
Mathematics
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Simplify the radical. Assume that all variables represent nonnegative real numbers. 
A. 4x2 
B. 4x
C. 4xy
D. 4xy2 
Mathematics
Divide the expression. You may want to use the property 
= 
+ 
. Do not use a calculator.
A. 12x7 - 20x2 B. 3x9 - 5x4 C. 3x7 - 5x2 D. 3x8 - 5x3
Mathematics
Use the two-stage method to solve.Maximizez = 5x1 + 4x2subject to:x1 + 2x2 = 15 x1 + x2 ? 12 2x1 + x2 ? 30 x1 ? 0, x2 ? 0
A. Maximum is 63 for x1 = 11, x2 = 2 B. Maximum is 75 for x1 = 15, x2 = 0 C. Maximum is 60 for x1 = 0, x2 = 15 D. Maximum is 57 for x1 = 9, x2 = 3
Mathematics
Add.- 355 + 656
A. 201 B. -1011 C. -301 D. 301
Mathematics