Answer:
The square root of ( -1 ) is i
The picture shows the answer I got!
Also! For the future, I use a site called
math way and it is great for problems like these.
The complete question is
<span>Four golf balls are packaged in a cylindrical container as shown below. The balls just touch the top, bottom, and sides of the cylinder. The diameter of each ball is 4cm.
1) </span><span>What is the volume of the cylinder rounded to the nearest cubic centimeter?
</span>2) <span>What is the total volume of the four balls rounded to the nearest cubic centimeter?
</span>3) <span>What percent of the volume of the container is occupied by the four balls?
</span><span>
Part 1) volume of the cylinder=pi*r</span>²*h
<span>r=4/2----> 2 cm
h=4*4----> 16 cm
</span>volume of the cylinder=pi*2²*16----> 200.96 cm³----> 201 cm³
the answer Part 1) is 201 cm³
Part 2) volume of a sphere=(4/3)*pi*r³ ( is equal to volume of one <span>golf ball)
</span>r=2 cm
volume of a sphere=(4/3)*pi*2³ ----> 33.49 cm³
so
volume of four golf ball-----> 4*33.49----> 133.97 cm³----> 134 cm³
the answer part 2) is 134 cm³
part 3)
volume of cylinder=201 cm³
volume of the four golf ball=134 cm³
so
if 201 cm³-----------> 100%
134 cm³--------> x
x=134*100/201----> x=66.67%
the answer part 3) is 66.67%
Greetings!
"<span>What is the LCM of two numbers if one number is a multiple of the other"...
The LCM (The Lowest Common Denominator) would be the number itself, multiplied by one.
For Example:
3/4+3/20
Multiples of the Denominators:
<u>4</u>:4,8,12,16,20,24
<u>20</u>:20,40
4*5=20
20*1=20
The LCM would be 20.
Hope this helps.
-Benjamin</span>