Answer:
e
Step-by-step explanation:
Answer:
cosR = ![\frac{8}{17}](https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B17%7D)
Step-by-step explanation:
cosR =
=
=
= ![\frac{8}{17}](https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B17%7D)
Lets width od field is x , x>0 (if x<0 it is no sense) yards and length is (x+40)yards
So square of field is x(x+40)=6000
x²+40x=6000
x²+40x-6000=0
(x+100)(x-60)=0
x₁=-100 no sense
x₂=60 yards - width of field
x+40=x+60=100 yards - length of field
Answer: 60 yards - width of field, 100 yards - length of field
Answer:
Step-by-step explanation:
360 + 3*180 = -360 + 540 = 180
For four sides -360 + 180*4 = 360
n-2)*180
For a fifteen sided share the sum of angles = (15-2)*180 = 13*180
Answer:352
Step-by-step explanation:
291-115=177
177+86=263
263-91=352