This is a difference of perfect squares which is of the form:
(a^2-b^2)
And which always factors to:
(a-b)(a+b)
In this case:
(5x-8)(5x+8)
We can deduce that the graph is a negative parabola from
-0.002x^2. Therefore, the graph is increasing < 1250 and decreasing > 1250.
P(x) is increasing from
and decreasing from
![(1250,\infty]](https://tex.z-dn.net/?f=%281250%2C%5Cinfty%5D)
.
Answer:
Step-by-step explanation:
Top triangle:
The hash marks indicate congruence. So, x is congruent to 15 or x= 15
x+6= 21
The length of the sides of this triangle are 15,15, and 21.
Two sides are congruent so isosceles.
Bottom triangle:
The sum of the angles in a triangle is 180.
30+35+x=180
75+x=180
x=105
105> 90, so this is an obtuse triangle.
