Answer:
It's -3/4
Step-by-step explanation: y2-y1/x2-x1
So (8-5)/((-2)-(-6))
Cross multiply first. You would get 6x=4, and divide both sides by 6, which would get you 4/6 which simplifies into 2/3.
I am pretty sure you subtract but in case it would be
(23,43) - (17,14).
(6,19) should be the answer
a) The average arithmetic mean is calculated by adding all of the values and then dividing the sum by the total number of values.

Which is 200.3.
b) Assume that the new average mean is 201, then

Solve for x.

Divide by 2604 to solve for x.

So the height of the new player is 175 cm.
Use Pythagorean Theorem of a^2 + b^2 = c^2 where a and b are the legs of the triangle set up by the house height and the ground, and c is the hypotenuse or how long the ladder is. C is going to be our unknown.
Just plugging in you get 25^2 + 35^2 = c^2. Simplify to 625 + 1225 = c^2. Simplify again to 1850 = c^2. The square root both sides to isolate the variable c. C = sqrt(1850) or approximately 43.0116 feet if rounded to 4 decimal places.
The ladder is approximately 43.0116 feet long.