Write as a proportion.18 is to 15 as 6 is to 5.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: D
Mathematics
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Find the indicated intersection or union.{1, 5, 8, 9} ? {2, 4, 7}
A. {1, 5, 8, 9} B. {2, 4, 7} C. {1, 2, 4, 5, 7, 8, 9} D. ?
Mathematics
Write the system in the form 
Then solve the linear system by computing 
with a calculator. Round numbers to the nearest tenth, as necessary.1.4x + 0.2y + 4.3z = 3.93.4x - 7.0y - 0.7z = -3.54.5x - 1.7y - 0.1z = -3.0
A. (-0.6, 0.1, 1.1) B. (-0.3, 0.0, 0.5) C. (-0.5, 0.1, 0.8) D. (-0.2, 0.0, 0.3)
Mathematics
Solve and check.x2 - 4 = 0
A. -2, 0, 2 B. -2, 2 C. 2 D. -2
Mathematics
Express as a single logarithm and, if possible, simplify.
[ln (y2 - 64) - ln(y + 8)] + ln (y + y)
A. ln (y - 8)(y - y) B. ln (y - 8)2/3(y + y) C. ln (y + 8)2/3(y + y) D. ln (y - 8)2/3(y - y)
Mathematics