Answer:
A.
Step-by-step explanation:
Slope = y2-y1/x2-x1
(2,-4) = (x1,y1)
(4,2) = (x2,y2)
Slope = (2+4)/(4-2)
= 6/2
= 3
Y=mx+b [Plugging (4,2) into this]
2 = 3×4 +b
2 = 12 + b
b = -10
Let x be the daily fee
0.5(48) +x = 64 is the equation,
Multiply:
24 + x = 64
Subtract:
x=40
The daily fee is $40
Hope this helps
Credit to Bob3141 (My first answer was wrong)
(2*40%+x*10<span>0%)/(2+x) = 70%; calculate x !</span>
For domain 2x sqrt(2+x)>0
x>0,2+x>0,x>-2 combining
we get x>2
f'(x)=[1/{2x sqrt(2+x)}][{2x/(2 sqrt(2+x))}+2 sqrt(2+x)]
Answer:
1/ -2.65
2/ 1/8
3/ 14.28
4/ -7.9
Step-by-step explanation:
Just add and subtract.