Solve the system of equations by substitution.
A. x = -7, y = 7; (-7, 7)
B. x = -6, y = 6; (-6, 6)
C. x = 6, y = -6; (6, -6)
D. x = 7, y = -7; (7, -7)
Answer: D
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Find ?f.f(x, y, z) = ln (x7 + y4 + z5)
A. F = 
i + 
j + 
k
B. F = 
i + 
j + 
k
C. F = 
i + 
j + 
k
D. F = 
ln ( y4 + z5)i + 
ln (x7 + z5)j + 
ln ( x7 + y4)k
Evaluate the integral.
A. 
B. ?
C. 
D. 2 sin-1 
Write the numeral as a Babylonian numeral.36,610
A. 
B. 
C. 
D. 
Solve the problem.In the circle with center O below, if 
measures 50 inches, and the length of 
is 34 inch(es) less than the length of 
, what are the lengths of 
and 
?
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A. 
measures 47 inches; 
measures 13 inches
B. 
measures 50 inches; 
measures 16 inches
C. 
measures 48 inches; 
measures 14 inches
D. 
measures 53 inches; 
measures 19 inches