Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Answer: B
Mathematics
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Replace the Cartesian equation with an equivalent polar equation.x2 + y2 = 144
A. r = 12 sin ? B. r = 144 C. r = 12 or r = -12 D. r = 12 cos ?
Mathematics
Find the requested product.f(x) = 9x + 5, g(x) = -8x + 5Find (f ? g)(2).
A. 0 B. 253 C. -253 D. -506
Mathematics
Solve the equation graphically. Check your answer.163 = 15x + 13
A. 2 B. 135 C. 139 D. 10
Mathematics
Solve the problem.Biologists banded five out of every twenty wild ducks. What percent were not banded?
A. 15% B. 5% C. 75% D. 25%
Mathematics