F(x) = -4 means y = -4. That means whatever the x is, the answer is going to be -4.
6............................................
Answer:
∴
and
this two sides include 
Step-by-step explanation:
Given;
A triangle 
We can see the figure of the triangle 
Where the
or
made by two sides
and
.
So
and
this two sides include 
Answer:
<em>1.57ft²</em>
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Explanation:
A=πr²
d=2r
A=1/4πd²=1/4·π·2² ≈ 3.14159ft²
Divide 3.141 by 2
1.57ft²