Solve the simultaneous equations 2y - 5x = 9
4y + 3x = 5
Do not use trial and improvement

y = 2, x = -1

Step-by-step explanation:

2y - 5x = 9

2y = 9+5x

y = (9+5x) /2

4y + 3x = 5

4((9+5x) /2) + 3x = 5

13x + 18 = 5

13x = -13

x = -1

y = (9+5x) /2

y = (9+5(-1)) /2

y = 2

false.

step-by-step explanation:

false.

cavalieri's principle makes that statement about the volumes, not about the areas.

2.83941151 would be the answer you're looking for! : )