Answer:
r = 20
Step-by-step explanation:
Answer:
-3
Step-by-step explanation:
You might find it easier to write -(11 - 8), which is -(3), or -3.
Answer:
Step-by-step explanation:
a) (5,5) ; (10,6); slope = 1/5
(x1,y2); (x2,y2)
y-y1 = m (x-x1)
![y-5=\frac{1}{5}*(x-5)\\\\y-5=\frac{1}{5}*x-\frac{1}{5}*5\\\\y-5=\frac{1}{5}x-1\\y=\frac{1}{5}x-1+5\\\\y=\frac{1}{5}x+4](https://tex.z-dn.net/?f=y-5%3D%5Cfrac%7B1%7D%7B5%7D%2A%28x-5%29%5C%5C%5C%5Cy-5%3D%5Cfrac%7B1%7D%7B5%7D%2Ax-%5Cfrac%7B1%7D%7B5%7D%2A5%5C%5C%5C%5Cy-5%3D%5Cfrac%7B1%7D%7B5%7Dx-1%5C%5Cy%3D%5Cfrac%7B1%7D%7B5%7Dx-1%2B5%5C%5C%5C%5Cy%3D%5Cfrac%7B1%7D%7B5%7Dx%2B4)
d) (√2,7) ; (√2,-7)
(x1,y1) ; (x2,y2)
![slope=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{-7-7}{\sqrt{2}-\sqrt{2}}\\\\=\frac{-14}{0}=0](https://tex.z-dn.net/?f=slope%3D%5Cfrac%7By_%7B2%7D-y_%7B1%7D%7D%7Bx_%7B2%7D-x_%7B1%7D%7D%5C%5C%5C%5C%3D%5Cfrac%7B-7-7%7D%7B%5Csqrt%7B2%7D-%5Csqrt%7B2%7D%7D%5C%5C%5C%5C%3D%5Cfrac%7B-14%7D%7B0%7D%3D0)
Equation: y =7 or y = -7
Multiply 10 times 5 then divide it by 4