Hi!! so here i’ll explain: for the first one, a times 3 is 3a. so you have 3a=-30. then you divide both sides by 3 and you have a=-10!! do the same for the rest, hope this helps
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%
Answer:
CD is the name of a ray in the drawing ⇒ 3rd answer
Step-by-step explanation:
A ray is a part of a line that has one endpoint and goes on infinitely in only one direction.
From the drawing:
∵ CA has C as a starting point
∵ A is a point on it
∵ Its direction from C to A
∴ CA is a ray
∵ CB has C as a starting point
∵ B is a point on it
∵ Its direction from C to B
∴ CB is a ray
∵ CD has C as a starting point
∵ D is a point on it
∵ Its direction from C to D
∴ CD is a ray
∵ CF has C as a starting point
∵ F is a point on it
∵ Its direction from C to F
∴ CF is a ray
From the answer:
CD is the name of a ray in the drawing
Answer:
3579 cents
Step-by-step explanation:
100 cents to a dollar
100/1 so multiply
35.79*100 is 3579 cents
Hope this helps!
Merry Christmas
The answer is 6, I was using a calculator if you were wondering how I did it so I hope I got it right for you!