Answer:

Step-by-step explanation:
see the attached figure , to better understand the problem
we have

where
A(b) ---> is the trapezoid's area
b ---> is the other base value
Solve the equation for b
That means ----> isolate the variable b
Divide 12 by 2 right side

Divide by 6 both sides

subtract 9 both sides

Rewrite

Convert to function notation

Wall height^2 = 10^2 - 3^2
wall height^2 = 91
wall height =
<span>
<span>
<span>
9.5393920142
</span>
</span>
</span>
=
<span>
<span>
<span>
9.5</span></span></span>4 feet (rounded)
Answer:
Niche
Step-by-step explanation:
Ecology dfn of niche
Answer:
4.80
Step-by-step explanation:
To find the solution to this problem we will use the Pythagoras theorem.


Answer: All real numbers less than or equal to 3.
Explanation: I took a test with this question and got it right.