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4 years ago

Using 3.14 for it, what is the volume, to the nearest cubic centimeter, of a ball with a diameter of 7 centimeters

Mathematics

1 answer:

Ipatiy [6.2K]4 years ago

5 0

Answer:

180 cm^3

Step-by-step explanation:

The ball is a sphere.

Volume of a sphere = $\frac{4 \pi r^{3} }{3}$

where pi = 3.14 and r = 3.5 cm, (which is half the diameter)

Substituting them in, gives us the answer.

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Please answer this question please please please

Alenkasestr [34]

The graph is uploaded

A is (4,0) x=4 and y =0

B is (4,4) x=4 and y=4

C is (-3,0) x=-3 and y =0

The graph is uploaded here

From the graph we can see that the base AC = 7 units

Height of the triangle AB = 4 units

Area of the triangle ABC = $\frac{1}{2}$ * base * height

= $\frac{1}{2}$ * 7 * 4

= 14 square units

7 0

3 years ago

Read 2 more answers

A candle burns down at the rate of 0.5 inches per hour. The original height of the candle was 8 inches.

11111nata11111 [884]

Answer: PART A.

y= remaining height of candle

x= rate the candle burns down in inches per hour

8= original height of candle

the function would be y=8- 0.5x because the candle starts at a height of 8 feet and loses half an inch per hour.

You can use this function to create ordered pairs by putting in number at x which indicates the time:

x=1

y=8- (.5×1)= 7.5

(1, 7.5)

you can then do this for other numbers and get:

(2, 7.0) (3, 6.5) (4, 6.0) (5, 5.5) (6, 5.0)

PART B.

This equation is a function because all of the x-values had different y-values as seen in the coordinates (1, 7.5) (2, 7.0) (3, 6.5) (4, 6.0) (5, 5.5) (6, 5.0)

PART C.

If the rate was 0.4 inches an hour, it would still be a function because the rate is the only thing that changed making the new function y= 8- 0.4x.This equation would make coordinates of (0,8) (1, 7.6) (2, 7.2) (3, 6.8) and so on with each x value creating a different y value.

Step-by-step explanation: hope this helps

3 0

3 years ago

Solve for x in this inequality. Show all your work and<br> graph your solution.<br> 4(x-3)<2x-4

maw [93]

Answer:

x<4

Step-by-step explanation:

To solve for x in the inequality equation, the terms should be rearranged such that x is on one side and integers are on the other side.

First, expand 4(x-3).

This will obtain:

$4x - 12 < 2x - 4$