There is 7 more math problem

1. 2x+ 4y = 10
-4x+ y =-22

2. 5x+y=-12
5x-7y=4

3. 7x+y=10
-7x-10y=26

4. 4x-2y=-14
3x-2y=-14

5. 6x+2y=20
-3x+3y=-30

6. -5x+4y=-3
-9x-y=30

7. -9x+6y=27
-x+3y=10

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

Melissa is purchasing a $160,000 home and her bank is offering her a 30-year mortgage at a 4.9% interest rate. in order to lower her monthly payment, melissa will make a 20% down payment and will purchase 3 points. what will her monthly mortgage payment be? a. $645.98 b. $650.46 c. $662.93 d. $606.69