Answer: area for circle is πr² so πr² =28.26 and we can sub 3.14 as pi
3.14*r²=28.26 we can divide by 3.14 to get r² on it's own
r²=28.26/3.14
then we root both sides to get r on it's own
28.26/3.14=9 √9=3
and the diameter is double the radius 3*2=6 so the diameter is 6
Step-by-step explanation:
You will have to take 3x common from both terms and your ans should look like this,
3x(9x^2-4)
Seven hundred and eight-teen and twelve thousandths
Answer:
1.921
Step-by-step explanation:
