Answer
15%
Step-by-step explanation:
I think the answer is 15% because when we talk about percentile, we are actually subtracting from 100% in simpler terms. If we say a 85th percentile, it actually means 15%.
It would be x-2 because you combine like terms
Answer:
b=2.5
Step-by-step explanation:
The given line has equation:
The x-intercept is (b,0)
The y-intercept is (0,b)
The area of triangle QOP
The area of triangle QRS
The area of triangle QRS and QOP are in the ratio 9:25
We must negate the area under the x-axis.
But 0<b<4
Therefore b=2.5
VERIFY
The area of triangle QOP
The area of triangle QRS
We must take absolute value because this area is below the x-axis.
For this we are going to use the equation f(x)=a|x+h|+k
Since there is no a shown, we know that a=1. This means the slope of the graph by 1's. (slope=1 one on the right side and slope=-1 on the left, because absolute value graphs are shaped like a "v".)
Since h=-2, just move the function to the left 2 units.
Since k=5, move the function up 5 units.
This basically means the vertex of the function is at the point (-2,5).
So put the point (-2,5) on your graph, then make the v-shape with a slope of 1 on the right side, and -1 on the left.
Sometimes if you aren't sure how the graph will look, just plug x-values into the function to get their corresponding y-values. Then see how the graph looks to check.