The IQR or interquartile range is the difference between Q1 and Q3, also know as the upper and lower quartiles.
Answer:

Step-by-step explanation:
Given two points are (-1,7) and (7,7).
We are told to find a point which is in between them at a ratio of 6:5.
Formula for calculating a point at distance of ratio m:n is given by

where
are the inital and final points.

also m:n=6:5 ,
by substituting all the values we get,


Answer:
50
Step-by-step explanation:
let x = total DVD rentals
450=9x
450/9=x
50=x
50 DVDs were rented
Answer:
•12
Step-by-step explanation:
fInd Little bit at end by pythogotous and find are of shaded the find areo of non shaded and take away with shaded triangle
Answer:
Zeros of a function: x = 1 and x = -10
Step-by-step explanation:
A zero of a function is the value of x when f(x) = 0. In other words it is the intersect point between x and y=f(x), when y =0.
First we need to make f(x)=0, so we would have:
.
If we factorize this quadratic function, we would have: 
So we get x = -10 and x = 1.
- x = 1 means that the diver hits the water 1 foot away horizontally from the board.
- x=-10 means the diver hits the water 10 feet behind the diving board.
Hope it helps!