Solve the matrix equation AX = B for X by finding A-1, given A and B as follows. Use a graphing calculator to obtain your answer, rounding all numbers to four decimal places.A = 
, B = 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Factor the GCF from the polynomial.w(z - 10) - 3(z - 10)
A. (z - 10)(w + 3) B. -3w(z - 10) C. (z - 10)(w - 3) D. (wz - 10w) - (3z - 30)
Mathematics
Answer the question.For f(x) = 4x2 + 9x and g(x) = 5x3, what is the domain of g?f?
A. 
B. 
C. All real numbers
D. 
Mathematics
Provide an appropriate response.Write as a unit rate: 42 miles in 2 hours.
A. 21 miles per hour B. 44 miles per hour C. 21 hours per mile D. 84 miles
Mathematics
Factor the four-term polynomial by grouping.20a3 + 12a2b - 25ab2 - 15b3
A. (4a2 - 5b2)(5a + 3b) B. (20a2 - 5b2)(a + 3b) C. (4a2 + 5b2)(5a - 3b) D. (4a2 - 5b)(5a + 3b)
Mathematics