Oi
Just calculating the differential. Step by step:

If you want to know where the tangent has no slope:
D. f(x)=4 (5/2)^x
Are really good tool for graphing problems is Demos.com
Answer:
We have been given the equation:

And x=10
Substitute the given x in the given equation we get:


On simplification we get:

Required solution is: x= 10 and y=-20
The solution to the system of equation is those points that satisfy the given system of equations.
Answer:
160
Step-by-step explanation:
10 x 20=200
10 - 2 = 8
8 x 20 = 160
Factors are the numbers another number can be divided from. example-
8÷4=2, 4 is a factor of 8.
so the factors of 4 are 1,2and 4itself. like this-
4×1=4
1×4=4
2×2=4
answer- 1,2 and 4.