Solve the problem.Find an equation for the level surface of the function f(x, y, z) = 
that passes through the point 
.
A. x2 + y2 + z2 = 169
B. x + y + z = 13
C. x2 + y2 + z2 = 13
D. x + y + z = ± 13
Answer: A
Mathematics
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Solve the equation 
for ?y. Round your answers to two decimal places, if necessary.
?
A. 
or 
B. 
or 
C. 
or 
D. None of the above.
Mathematics
Solve the problem.Mr. and Mrs. Gutierrez borrow $6960 to buy a new car. The load is to be paid off in 24 equal monthly payments. How much is each payment?
A. $6936 B. $290 C. $29 D. $6984
Mathematics
Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in the ordered pair form.
A. {(1, -12)} B. {(2, -14)} C. {(-14, 2)} D. {(3, -22)}
Mathematics
Graph the inequality.x2 + y2 > 16
A. 
B. 
C. 
D. 
Mathematics