The formula for the circumference of a circle is pi * r * 2
First we solve for r (the radius)
pi*r*2 = C
pi*r*2 = 18
Divide 18 by 2
pi*r = 9
Then divide 9 by 3.14
pi= 9/3.14 which is 2.866
The diameter is 2 times length of the radius so multiply 2.866 by 2
The diameter is about 5.732
(And you can round of course)
Hope that helped
If it were like that, 9/20 would be baseball card.
x=27 since 20x3=60
Answer:
1571 in
Step-by-step explanation:
Given data
Diamter= 25 in
radius= 25/2= 12.5in
Circumference= 2πr
substitute
C=2*3.142*12.5
C=78.55in
In 1 revolution the bike will travel 78.55in
in 20 revolutions the bike will travel
=78.55*20
=1571 in
Answer:
6
Step-by-step explanation:
Answer:
Step-by-step explanation:
(x + 2)(x +9)= x*(x +9) + 2*(x +9)
= x*x + x*9 + 2*x + 2*9
= x² +<u> 9x + 2x </u>+ 18 {Combine like terms}
= x² + 11x +18
