Use the Gauss-Jordan method to solve the system of equations. x + y + z = 92x - 3y + 4z = 7 x - 4y + 3z = -2
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Write the number in scientific notation.0.05 × 107
A. 0.5 × 106 B. 5 × 10<6 C. 5 × 105 D. 5 × 109
Mathematics
Make the indicated conversion. 396 cm2 to in.2
A. 156 in.2 B. 1010 in.2 C. 61.4 in.2 D. 2550 in.2
Mathematics
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.x2 - 25x + 625
A. (x + 25)2 B. (x - 25)2 C. Prime D. (x + 25)(x - 25)
Mathematics
Identify the polynomial as a monomial, binomial, or trinomial. Give the degree of the polynomial.-7x6 - 1x5 + 1x4
A. Binomial, degree 5 B. Trinomial, degree 6 C. Trinomial, degree 15 D. Binomial, degree 15
Mathematics