Decide whether the pair of lines is parallel, perpendicular, or neither.9x + 3y = 1227x + 9y = 37

A. parallel
B. perpendicular
C. neither


Answer: A

Mathematics

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Convert 3 feet to centimeters. Round to the nearest hundredth. 

A. 300.00 cm B. 984.24 cm C. 91.44 cm D. 9.84 cm E. 914.40 cm

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Distribute and simplify.x-2(14x2/3 - 10x-1/2)

A. 7x4/3 + 5x5/2
B. 7x4/3 - 5x5/2
C.  - 
D.  + 

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Decide whether or not the ordered pair is a solution of the system.(1, -2)4x = 2 - y3x = -5 - 4y

A. Yes B. No

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Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?

A. 20 B. 100 C. 10 D. 500

Mathematics