I will only do the first-three. You can repost number 4.
Question 1
f(x) = -x^2 + 10x + 4
dy/dx = -2x + 10
Question 2
f(x) = 20 - x + 2
dy/dx = -1
Question 3
f(x) = ex^4 - 2x^2
dy/dx = e•4x^3 + x^4 - 4x
dy/dx = 4ex^3 + x^4 - 4x
To find the mean just add all the numbers together then divide them by how many numbers there are.
To find the median you have to rewrite the list in numerical order then pick out the middle one which will be your answer
The mode is the number that is repeated more often than the others
For range pick out the largest and smallest number in the group and subtract those, the value you get will be the range :) Hope this helped
Answer:
They're both cool but I personally like the first one better lol
X - 65 - 4x.
3x - 65.
I assume that you subtract x times four (a number, x, multiplied by 4) FROM the difference of x and 65 (the same number and 65).
Hope this helps!
