y=-2x
We know this because the slope is -2 (slope is found using rise/run, in this case the rise is 2 and the run is -1, so 2/-1=-2), and the y-intercept is at 0 (the y-intercept is the point at which a line crosses the y-axis).
:)
Answer:
option A
Step-by-step explanation:
goal is short one
The area is 279. You do 11×19 to get the bottom portion. That will give you 209. Then for the top subtract 11 from 18 to get that side length and then do 7×10. With that you will get 70 and then you add 209 to that. 209+70=279.
Answer:

Step-by-step explanation:
We were given that; the formula for the surface area, A, of a prism is given by

where is the length of the prism, w is the width, and h is the height.
We want to solve this formula for l,
Group the l terms;

Factor l on the right;

Divide both sides by 2w +2h

Therefore:

Hello :
<span> f(x) = -5x² +x+1
</span>a = -5 b = 1 c = 1
the vertex is the point A(-b/2a ; f(-b/2a) )
-b/2a = (-1/-10) = 1/10 = 0.1
f(1/10) = -5(1/10)²+(1/10)+1 =21/20 = 1.05