Solve the system. If the system's equations are dependent or if there is no solution, state this. x + 3y + 2z = 11 4y + 9z = -12x + 7y + 11z = -11
A. (1, 6, -4)
B. (7, -1, -1)
C. (0, 3, 1)
D. No solution
Answer: D
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Use scientific notation to solve the problem.A light-year is the distance that light travels in one year. Find the number of miles in a light-year if light travels 1.86 x 105 miles per second.
A. 6.0 x 1014 miles B. 6.0 x 1012 miles C. 6.0 x 105 miles D. 6.0 x 107 miles
Translate the problem situation to a system of equations. Do not solve.The Cudly College football team scored 86 times last season, some seven-point touchdowns and some three-point field goals. Altogether the 86 scores accounted for 466 points. How many of each type of score was accomplished?
A. x - y = 86; 7x - 3y = 466 B. x + y = 86; 7x + 3y = 466 C. x + 3y = 86; 7x + y = 466 D. x + y = 466; 7x + 3y = 86
Write a chain rule formula for the following derivative.
for u = f(x); x = g(p, q, r)
A. 
= 
B. 
= 
C. 
= 
+ 
+ 
D. 
= 
Solve the equation.0.07y + 0.13(700 - y) = 0.19y
A. {728} B. {364} C. {22.75} D. {227.5}