<h2>Ex 5</h2>
Simply multiply the equation by 6, in order to get rid of the denominators:
<h2>Ex 6</h2>
We have to rearrange the equation in the form
So that 
is the radius, and 
will be the diamater. We have to complete the squares: rewrite the equation as
You can see that 
is the beginning of 
Similarly, 
is the beginning of 
So, if we add 16 and 9 to both sides, the equation becomes
So, now we know that 
, and thus the radius is 13, so the diameter is 26.
To get the answer, multiple 20 by 0.45= $9 than subtract 9$ from $10 which equals $1.
So to start off you subtract y2 - y1/x2 - x1. This should look like -5 - -1/ -4 - -4. Now you do the math and you should get -4/0. Therefore the slope is undefined.
Y=2.5 and if u need me to explain i will be glad to
Answer:
A = 8π cm²
Step-by-step explanation:
The area (A) of a circle is calculated as
A = πr² ( r is the radius )
Here diameter = 8 , then r = 8 ÷ 2 = 4
The area of half a circle is then
A = 
π × 4² = × π × 16 = 8π cm²
