Find the determinant of the matrix and determine if the matrix is invertible 
What will be an ideal response?
?12, invertible
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Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log19
A. 
log195 - 2 log19y - 2 log19x
B. 6 log195 - 2 log19y - log196
C. log195 - log19y - log19x
D. 
log195 - 2 log19y - log19x
Use the given functions to find the requested function.f(x) = 4 - 5x, g(x) = -8x + 5Find f + g.
A. 3x + 9 B. -13x + 9 C. -4x D. -8x + 4
Solve the problem.Megan is having her yard landscaped. She obtained an estimate from two landscaping companies. Company A gave an estimate of $240 for materials and equipment rental plus $55 per hour for labor. Company B gave an estimate of $320 for materials and equipment rental plus $45 per hour for labor. Determine how many hours of labor will be required for the two companies to cost the same.
A. 7 hours B. 12 hours C. 8 hours D. 11 hours
Use the quadratic formula to solve the equation.x2 + 18x + 70 = 0
A. -9 - 
, -9 + 
B. -18 + 
C. 9 - 
, 9 + 
D. 9 + 