Mathematics, 14.07.2019 23:30 zaygonegraduate
1. use elimination to solve for x and y: 9x−4y=11 x+4y=19 select one: a. (7, 3) b. (4, 3) c. (-1,5) d. (3, 4) 2. solve for x and y: x−3y=−8 3x+2y=31 select one: a. (-11,-1) b. (11,-1) c. (5, 8) d. (7, 5)
Answers: 2
Mathematics, 21.06.2019 22:00
Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2
Answers: 1
Mathematics, 21.06.2019 22:00
What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?
Answers: 1
Mathematics, 21.06.2019 22:30
The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?
Answers: 1
1. use elimination to solve for x and y: 9x−4y=11 x+4y=19 select one: a. (7, 3) b. (4, 3) c. (-1,5...
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