Solve the system of equations.x - y + z = 8x + y + z = 6x + y - z = -12
A. (-2, -1, 9)
B. (2, -1, -9)
C. (-2, -1, -9)
D. (2, -1, 9)
Answer: A
Mathematics
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Find 
by using logarithmic differentiation.y = (x3 + 1)2(x - 1)4x2
A. 
+ 
+ 
B. (x3 + 1)2(x - 1)4x2(2ln(x3 + 1) + 4ln(x - 1) + 2ln x)
C. (x3 + 1)2(x - 1)4x2
D. (x3 + 1)2(x - 1)4x2
Mathematics
Use a calculator to approximate the logarithm to four decimal places.log 2061
A. 3.3162 B. 3.3120 C. 3.3141 D. 7.6309
Mathematics
Solve the problem.A bank loaned out $52,000, part of it at the rate of 
per year and the rest at a rate of 
per year. If the interest received was $5120, how much was loaned at 
A. $19,000 B. $20,000 C. $32,000 D. $33,000
Mathematics
Simplify the radical expression. Indicate if the expression is not a real number.
A. 
B. Not a real number
C. - 
D. - 10
Mathematics