Answer:
Given below
Step-by-step explanation:
The algebraic identity is (a-b)^2
= a^2 + b^2 - 2ab
So it'll be,
(x-4)^2
= x^2 + (4)^2 - (2)(x)(4)
= x^2 -8x + 16
or x^2 +16 -8x
Answer:
A = <u>40</u> 
Step-by-step explanation:
The equation for finding the area of a trapezoid is
.
In this equation, a=4, b=6, h=8.
.
4+6=10
10/2=5
5x8=40
Hope this helps!
Answer:
57.3
Step-by-step explanation:
just took the quiz
Answer:
It landed at a height of 14 feet
Step-by-step explanation:
Given
--- Path of a t-shirt
--- height of bleachers
Required
Height when t-shirts land in bleachers

Make y the subject

Substitute
in 

Multiply through by 24

Express as:


Using a calculator:
or 
x can not be negative:
So:

Substitute
in
to calculate the height it landed


Answer: 32.5
Step-by-step explanation:
This is the answer on Khan Acadamy