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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Find the equation for the level surface of the function through the given point.f(x, y, z) = 
, (3, 6, 4)
A. 
= 
B. 
= 
C. The level surfaces cannot be determined.
D. 
= 
Mathematics
Express as a single logarithm:
Mathematics
Find the part.81% of 100 animals
A. 8100 animals B. 810 animals C. 8 animals D. 81 animals
Mathematics
Jerry buys a $2,700 motorcycle on a deferred payment plan. There is no down payment and no interest for eighteen months. Jerry must make a minimum payment of $75 a month. To avoid a retroactive APR of 21%, he must pay the balance in full before the 18 months has passed. If he pays $75 each month, how much should he pay the last month to avoid the interest charges?
A. $1,350 B. $1,425 C. $1,500 D. $2,075
Mathematics