Answer:
324
Step-by-step explanation:
So first its 20 x 20 which is 400 so then the lawnmower does 80 per min so 80 x 5 and u get 400
Answer:
9.7 x 2.84 and 6.25 x 4.76
Step-by-step explanation:
they are the only two that get close to 30 without getting over it
Answer:
<h2>D: y= -(1/3)x -3</h2>
Step-by-step explanation:
![(3, -4)=(x,y)\\y=3x+2\\\\m_1 =3\\In\: perpendicular\: line ;\\\\m_2 = \frac{-1}{m_1} \\m_2 = \frac{-1}{3} \\m_2 = -1/3\\\\Substitute \:new\:values\:into\: ;y=mx+b\\\\-4 = -\frac{1}{3} (3) + b\\-4 = -1 +b\\-4+1 =b\\-3 =b\\Substitute \:new\:values\:into\: ;y=mx+b\\y =-\frac{1}{3}x -3](https://tex.z-dn.net/?f=%283%2C%20-4%29%3D%28x%2Cy%29%5C%5Cy%3D3x%2B2%5C%5C%5C%5Cm_1%20%3D3%5C%5CIn%5C%3A%20perpendicular%5C%3A%20line%20%3B%5C%5C%5C%5Cm_2%20%3D%20%5Cfrac%7B-1%7D%7Bm_1%7D%20%5C%5Cm_2%20%3D%20%5Cfrac%7B-1%7D%7B3%7D%20%5C%5Cm_2%20%3D%20-1%2F3%5C%5C%5C%5CSubstitute%20%5C%3Anew%5C%3Avalues%5C%3Ainto%5C%3A%20%3By%3Dmx%2Bb%5C%5C%5C%5C-4%20%3D%20-%5Cfrac%7B1%7D%7B3%7D%20%283%29%20%2B%20b%5C%5C-4%20%3D%20-1%20%2Bb%5C%5C-4%2B1%20%3Db%5C%5C-3%20%3Db%5C%5CSubstitute%20%5C%3Anew%5C%3Avalues%5C%3Ainto%5C%3A%20%3By%3Dmx%2Bb%5C%5Cy%20%3D-%5Cfrac%7B1%7D%7B3%7Dx%20-3)