Solve the system. 5x + z = -29 w + x + 3y - z = 145w + y + 3z = 21 w + x + 2y = 7
A. (30, -25, 6, -20)
B. (6, -5, 6, -4)
C. (6, -25, 6, -8)
D. (6, -5, 3, -4)
Answer: D
You might also like to view...
Solve the problem.Six college buddies bought one another Christmas gifts. They spent $170.21, $277.18, $148.63, $279.72, $285.83, and $149.47. Find the mean amount spent for Christmas gifts.
A. $250.21 B. $327.76 C. $218.51 D. $262.21
Solve the problem.When going more than 38 miles per hour, the gas mileage of a certain car fits the model 
where x is the speed of the car in miles per hour and y is the miles per gallon of gasoline. Based on this model, at what speed will the car average 15 miles per gallon? (Round to nearest whole number.)
A. 48 mph B. 73 mph C. 98 mph D. 149 mph
State whether the function is a polynomial function or not. If it is, give its degree. If it is not, tell why not.f(x) = 
A. No; x is a negative term B. Yes; degree 3 C. Yes; degree 1 D. No; it is a ratio
Divide. Leave your answer in exponent form. Assume that all variables in any denominator are nonzero.
A. 
B. 
C. 
D. 