Use the substitution method to solve the system. x + 3y = 12-5x + 4y = 16
A. (-4, 0)
B. (1, 3)
C. (0, 4)
D. No solution
Answer: C
Mathematics
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Write the fraction in decimal form.
?
?
A.
0.00064
B.
0.00064
C.
0.8
D.
0.064
E.
0.064
Mathematics
Find the average value of 
over the given region.
over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 45
B. 20
C. 
D. 30
Mathematics
Change to a decimal.80%
A. 0.08 B. 0.8 C. 8 D. 0.69
Mathematics
Use a graphing utility to approximate to two decimal places any solutions on [0, 2?) graphically or numerically.sin3 x - cos x - 1 = 0
A. x = 1.57, 2.57, 3.14 B. x = 0, 0.57, 1.57 C. x = 0, 4.71, 5.71 D. x = 0, 1.57, 0.57
Mathematics