Bring y to one side and the rest to the other switching the positives to negative then you’ll get Y=114
Answer:
sorry im on a time lapse, so the answer is 2 1/2. hope it helps
Step-by-step explanation:
Answer:
Step-by-step explanation:
The secants form a proportion where the full length of the secant is the denominator of a fraction where the numerator is the external part of the secant.
7/(x + 7) = 6/(15 + 6) Cross Multiply after combining
7 / (x + 7) = 6/(21)
6 * (x + 7) = 7 * 21 Remove the brackets
6x + 42 = 147 Subtract 42
6x = 147 - 42
6x = 105 Divide by 6
x = 17.5
I think I've done this correctly. If you find an error, please let me know and I'll open it for editing.
Look at the picture.
The point-slope form of a line:
![y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=y-y_1%3Dm%28x-x_1%29%5C%5C%5C%5Cm%3D%5Cdfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
We have the points (0, 1) and (2, 0). Substitute:
![m=\dfrac{0-1}{2-0}=\dfrac{-1}{2}=-\dfrac{1}{2}\\\\y-1=-\dfrac{1}{2}(x-0)\\\\y-1=-\dfrac{1}{2}x\qquad|+1\\\\y=-\dfrac{1}{2}x+1](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7B0-1%7D%7B2-0%7D%3D%5Cdfrac%7B-1%7D%7B2%7D%3D-%5Cdfrac%7B1%7D%7B2%7D%5C%5C%5C%5Cy-1%3D-%5Cdfrac%7B1%7D%7B2%7D%28x-0%29%5C%5C%5C%5Cy-1%3D-%5Cdfrac%7B1%7D%7B2%7Dx%5Cqquad%7C%2B1%5C%5C%5C%5Cy%3D-%5Cdfrac%7B1%7D%7B2%7Dx%2B1)
Answer: ![f(x)=-\dfrac{1}{2}x+1](https://tex.z-dn.net/?f=f%28x%29%3D-%5Cdfrac%7B1%7D%7B2%7Dx%2B1)