Plug in -7 for x in the equation...
f(x) = 3 - 2( - 7 )
f(x) = 3 + 14
f(x) = 17
1 container = 55 balls
x 9 x 9
9 containers = ? balls
55 x 9 = 495
<u><em>The answer is 495 balls</em></u>
this is system of equations
2x + 5y = -1 times this one by 5 to make the y's opposite
-10x -25y = 5
10x - 25y = -5 (this is it times by 5, now add them)
__________
0 + 0 = 0
now since everything cancels and both sides are equal it has infinite solutions beaus they are actually the same line.
Answer:
40 degrees
Step-by-step explanation:
Answer:
$420
Step-by-step explanation:
