Answer:
0.4
Step-by-step explanation:
Divide 2 by 5
Answer:
y-intercept = -1
Step-by-step explanation:
Answer:
find derivative of function
sub in x value of point to find gradient of tangent
put gradient into y=(gradient)x+c
Sub in point and solve for c
you have found the equation of the tangent.
Answer:

Step-by-step explanation:
we have

we know that
-----> the bases are multiplied and the exponents are added up
so
in this problem


A. she needs 81sq ft
b. 202.5$