They add up to 180 degrees.
5x+7+15x-7=180
20x=180
x=9
<span>"Y is inversely proportional to the cube of x" translates to Y = kx</span>³ where k is unknown constant. We need to solve for k.
So we have Y = 3 and x = 2. Plug in and we get 3 = k2³ = 8k
So k = 3/8
Now we can solve for Y when x = 3
Y = (3/8)3³ = (3/8)27 = 81 / 8
Final answer: 81 / 8
Use the slope-intercept form y = mx + b to find the slope m.
m = 8/5
Hope this helps! :)
B because there is a dot in front of the 25 which is also known as a decimal point.
