How many cubic inches of material do you need to make a solid rubber ball with a diameter of 3 in.? Round your answer to two decimal places.

Answers

Answer 1
Answer: The materials to be used to make the rubber ball will cover the circumference of the ball. Hence, the cubic inches of material to be used represent the volume of the sphere with diameter = 3 inches (radius = 3 / 2 = 1.5 inches). The volume of a sphere is given by V = 4/3 pi r^3 = 4/3 pi x (1.5)^3 = 14.14 cubic inches.

Related Questions

8 = -8A True© False????
The center of a circle is at the origin. An endpoint of a diameter of the circle is at (-3, -4). How long is the diameter of the circle?
M-1 = -2—9Plsss helppp!!
You roll a six-sided number cube. Which events are mutually exclusive? A) rolling a multiple of 2 and a multiple of 4 B) rolling a multiple of 3 and a multiple of 6 C) rolling an even number and an odd number D) rolling a prime number and an even number
A bag contains pennies, nickels, nickels, and nickels. There are 50 coins in total. Of the coins, 14% are pennies and 34% are dimes. There are 6 more nickels than pennies. How much money does the bag contain?

A farmer is fencing off his field. A diagram is given and shows how the field has been divided into two regions. The area ofregion one is 950 sq ft. The area of region two is 4845 sq ft. Find the perimeter around the entire field
15x - 45
4.X-10
2
3x
a 150 ft
b. 224 ft
С. 176 ft
d. 384 ft

Answers

Answer:

The answer is D.384

Step-by-step explanation:

Melissa bought a cake that cost $75. The sales-tax rate is 10 percent. What is the total amount she paid for the cake?

Answers

Answer:

the total amount she paid for the cake, $82.5

Step-by-step explanation:

As per the statement:

Melissa bought a cake that cost $75.

⇒Cost of cake = $75

It is also given that:

The sales-tax rate is 10 percent.

then

Sale tax she gave on cake = (10)/(100) * 75 = \$7.5

We have to find the total amount she paid for the cake.

\text{Total amount she paid for the cake} = \text{Cost of the cake}+\text{Sale tax}

Substitute the given values we have;

\text{Total amount she paid for the cake} = 75+7.5 = \$ 82.5

therefore, the total amount she paid for the cake, $82.5

Statements: 

1# 
Melissa bought a cake of cost $75.
2# The tax that has to be paid for the product is 10% of the cost of the product, itself.

=================================

Total amount of money = $75 +( (10)/(100)*75 )
 
                                         = $75 + $7.5                                         
                                         = $82.5 

 

Use your knowledge of similar triangles to solve for x

Answers

9514 1404 393

Answer:

  x = 10 2/3

Step-by-step explanation:

The ratios of corresponding sides are the same, so we have ...

  x/8 = 8/6

  x = 8·(8/6) = 64/6

  x = 10 2/3

Help solve with subsitution x+y=1, 2x+3y=-4

Answers

{   x + y = 1    * ( - 2 )
  2 x + 3y = -4

- 2 x - 2 y = - 2
  2 x + 3 y = - 4
_______________
         y = - 6

Subsititute y = - 6 

2 x + 3 y = - 4

2 x + 3 * (-6) = -4

2 x - 18 = - 4

2 x = - 4 + 18

2 x = 14

x = 14 / 2

x = 7

The solution  to the system of equations are:

x = 7 and y = - 6

hope this helps!



Write an equation of lines whose graph is parallel to the graph of y=3x-10

Answers

Parallel lines have the same slope.

So the graph of  [ y = 3x + any number ] is parallel
to the graph of  [ y = 3x - 10 ] .

25a² - 16b² when a = --2 and b = 3

Answers

25a² - 16b²

25*-2² - 16*3²

25*4 - 16*9

100 - 144

= -44