Find the determinant of the matrix and determine if the matrix is invertible 
?
What will be an ideal response?
?123, invertible
Mathematics
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Decide whether the equation is "conditional," an "identity," or a "contradiction." Give its solution set.2[3 - (5 - 5r)] - r = -10 + 3(2 + 3r)
A. Identity; {all real numbers} B. Conditional; {10} C. Conditional; {-5} D. Contradiction; ?
Mathematics
Find the length of the curve r(t) = 2ti+t²j+1ntk, 1?t? Figure 3.png)
.
 multiple choice.png)
Mathematics
Use properties of rational exponents to simplify the expression. Assume that any variables represent positive numbers.x7/8? x1/8
A. x7/64
B. x
C. 
D. x7/8
Mathematics
Solve the equation.4x2 + x = 0
A. 0, 
B. 0, - 
C. 
D. - 
Mathematics