Let 11x + 15y + 23 = 0 be equation (1)
And 7x - 2y - 20 = 0 be equation (2)
Multiply equation (1) by 2:
22x + 30y + 46 = 0
Multiply equation (2) by 15:
105x - 30y - 300 = 0
Add equations (1) and (2):
22x + 105x + 30y - 30y + 46 - 300 = 0
127x - 254 = 0
127x = 254
x = 254/127
[x = 2]
Substitute x = 2 in equation (1) to find y:
11(2) + 15y + 23 = 0
22 + 15y + 23 = 0
15y + 45 = 0
15y = -45
y = -45/15
y = -3
Therefore, x = 2 and y = -3.
Check the picture below.
make sure your calculator is in Degree mode.
Answer:
340
Step-by-step explanation:
340.33 and rounfing off whole number is 340
Answer:
No.
Here's the break why it is not proportional...
The proportion breaks near the end because the multipliers no longer match.
Answer:
(x -8)^2 +(y +3)^2 = 36
Step-by-step explanation:
The equation of a circle with center (h, k) and radius r is ...
(x -h)^2 +(y -k)^2 = r2
Putting your numbers into this form gives ...
(x -8)^2 +(y +3)^2 = 36
