Answer:
95.03in.^2
Step-by-step explanation:
Use the formula, A= pi r^2 and D=2r
A=1/4pi d^2=1/4 times pi time 11 squared
Answer:
Option D. x ≥ -4
Step-by-step explanation:
____________
Answer:
X = 3
Y = all real numbers
Step-by-step explanation:
x is the input
y is the output
The equation would be x = 3
Option A
The solution is 
<em><u>Solution:</u></em>
<em><u>Given system of equations are:</u></em>
3x + 6y = 1 ------ eqn 1
x - 4y = 1 ------ eqn 2
We have to find solution to system of equations
We can use substitution method
From eqn 2,
x = 1 + 4y -------- eqn 3
Substitute eqn 3 in eqn 1
3(1 + 4y) + 6y = 1
3 + 12y + 6y = 1
18y = 1 - 3
18y = -2
Divide both sides by 18

Substitute the above value of y in eqn 3

Thus solution is 
3 : 3,6,9,12,15,18,21,24,27,30
4 : 4,8,12,16,20,24,28,32,36
7: 7,14,21,28,35,42,49,56,63
9: 9,18,27,36,45,54,63,72,81