Answer:
1.95
Step-by-step explanation:
Ask google or siri i dont see it cause it's sideways
Yes it represents a linear function.
0.5 of a mile - since 5,280ft = 1 mile and half of 5,280 is 2,640
last one. i can do the first part. put x = distance from top of ladder to the floor, y = distance from base of ladder to the wall (draw a picture) then pythagoras sez
<span><span>x2</span>+<span>y2</span>=25</span>
calculus says
<span>2x<span>x′</span>+2y<span>y′</span>=0</span>
and you are told that
<span><span>y′</span>=2</span>
so you know
<span>2x<span>x′</span>+4y=0</span>
or
<span><span>x′</span>=−<span><span>2y</span>x</span></span>
