5x - 14y = 22 ⇒ 5x - 14y = 22
-6x + 7y = 3 ⇒ <u>12x - 14y = -6</u>
<u>-7x</u> = <u>28</u>
-7 -7
x = -4
5x - 14y = 22
5(-4) - 14y = 22
-20 - 14y = 22
<u>+ 20 + 20</u>
<u>-14y</u> = <u>42</u>
-14 -14
y = -3
(x, y) = (-4, -3)
Answer:
D its really basic math you can also just do it in a calculator lel
Add both equations giving x=1
Sub back into any equation which gives you y=1
PEMDAS
(9)(5) + 8
45 + 8
53
Answer:
9 feet
Step-by-step explanation:
The height of the ball in feet is given by the polynomial:

where t is the time in seconds.
After 3 seconds, t = 3:

The height of the ball after 3 seconds is 9 feet.