Evaluate
please show work
2x y^2-3xy-7 if y=-4 y=5...
Answers: 2
Mathematics, 21.06.2019 14:30
Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (โ3)ยท(โ2x) + (โ3)ยท(4) step 2: 12 + 6x + (โ12) step 3: 12 + (โ12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition
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Mathematics, 21.06.2019 16:30
An airport in death valley is 60 feet below sea level, and an airplane is flying 2,000 feet above sea level. how many feet must the plane descend in order to land? a. 2060 b. 2000 feet c. 1940 feet d. 1880 feet e.1400 feet will mark as brainliest
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Mathematics, 22.06.2019 00:00
Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.
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Mathematics, 22.06.2019 02:00
Ethan is proving that the slope between any two points on a straight line is the same. he has already proved that triangles 1 and 2 are similar. drag statements and reasons to complete the proof.
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