Evaluate the expression.
Mathematics
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Use the quadratic formula or graphing methods to solve the inequality.9x2 ? 3 - 3x
A. x ? 
? -0.768
B. 
? -0.768 ? x ? 
? 0.434
C. x ? 
? -0.768 or x ? 
? 0.434
D. x ? 
? 0.434
Mathematics
Find the determinant of the matrix and determine if the matrix is invertible 
?
What will be an ideal response?
Mathematics
Simplify the expression.(
+ 
)(
- 
)
A. 0 B. 324 C. -12 D. 12
Mathematics
Graph the function. Show at least one period.y = -3 sin 
A. 
B. 
C. 
D. 
Mathematics