
Differentiate both sides wrt
:

By the chain rule, we get


Solve for
:


Answer:
55
Step-by-step explanation:
first you plug in the numbers where they belong...
(-4-1)²+2(1)- 7(-4)
now you do the Order of Operations
P anything in ()
E exponents (²)
M multiplication
D division
A addition
S subtraction
first do (-4-1)²
-5²= -5* -5= 25
now we have... 25+2(1) - 7(-4)
now do 2*1= 2 also do 7 * (-4)= -28
now we have 25+2-(-28)
because there is that -(-28) just make it a +28
now do 25+2+28
27+28
55
Answer:
He walks 1030 meters if he walks across the park.
Step-by-step explanation:
In order to solve this question we will need to know that
(were c is the length of the hypotenuse (the diagonal line) of a right angle triangle, and a and b are the legs (the sides that form a right angle). So them means that.....
Let "c" be the distance he will need to walk if he was going to go through the park
Let "a" be the distance he walks on King Street
Let "b " be the distance he walks on Queen Street, then.....


(Now plug in the values of a and b and get.....)
c = 
c = 
c = 1029.563014............
So I would assume that you have to round to the nearest meter. And as a result we get 1030 meter.