Insert parentheses as needed in the expression 5 + 8?2 -1 to make the equation true.
B) (5 +8)?2 -1 = 25
Mathematics
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Find the domain of the expression.
?
?
A. All real numbers x such that 
B. All real numbers x
C. All real numbers x such that x ? 4
D. All real numbers x such that x < 4
E. All nonnegative real numbers x such that x = 4
Mathematics
Determine whether the given quadratic function has a minimum value or maximum value. Then find the coordinates of the minimum or maximum point.f(x) = -4x2 + 4x
A. minimum; 
B. minimum; 
C. maximum; 
D. maximum; 
Mathematics
Verify the identity.
= cos 3x
What will be an ideal response?
Mathematics
Multiply and express the product in lowest terms.
? 
A. 
B. 
C. 
D. 
Mathematics