I need help can someone tell me if this is right?

A fully inflated basketball has a radius of 12

valentinak56 [21]

The volume of air needed is equal to the volume of the sphere, which is 7,234.56 cm^3.

<h3>How to get the volume of a sphere?</h3>

The volume of air that we need is equal to the volume of the basketball.

Remember that for a sphere of radius R, the volume is:

V = (4/3)*3.14*R^3

In this case, the radius is 12cm, replacing that we get:

V = (4/3)*3.14*(12cm)^3 = 7,234.56 cm^3

Then, to fully inflate the ball, we need 7,234.56 cm^3 of air.

If you want to learn more about spheres, you can read:

brainly.com/question/10171109

7 0

1 year ago

Craig likes to collect records last year he had Tim records and his collection now he has 15 records what is the percent increas

Softa [21]

Answer:

50% I believe?

Step-by-step explanation:

7 0

2 years ago

Choose which set or sets the following number belongs to. Be sure to account for ALL sets.

Lelechka [254]

The sets to which the number -√3 belongs are:

D: Rational numbers.

E: Real numbers.

<h3>To which sets the number belong?</h3>

Here we have the number:

-√3

Notice that 3 is a prime number, and the square root of 3 is then an irrational number.

If it is an irrational number, it also is a real number (Remember that the real set contains all the numbers that are either rational or irrational). And because it has a negative sign, it is a negative number.

Then the correct options are:

D: Rational numbers.

E: Real numbers.

Concluding, the sets to which the number -√3 belongs are:

D: Rational numbers.

E: Real numbers.

If you want to learn more about irrational numbers:

brainly.com/question/20400557

#SPJ1

3 0

1 year ago

The height of the tide over time is shown on the graph. Which of the following equations can be used to reasonably model the dat

Murljashka [212]

Answer:

Option 1. $f(x) = -3sin(\frac{\pi }{6}x)+3$

Step-by-step explanation:

The height of the tide over the time is shown on the graph.

Its a periodic function (sine graph) plotted on a graph in which variables are

Amplitude a = (6-0)/2 = 3

Period = 15-3 = 12

Therefore b = 2π/period = 2π/12 = π/6

horizontal shift = 0

Vertical shift = 3

Since the function starts with negative sign that means its below the x-axis.

So as per standard formula of f(x) = asin(bx+c)+d

option which matches all these parameters is Option 1. $f(x) = -3sin(\frac{\pi }{6}x)+3$

3 0

2 years ago

Read 2 more answers

Help plz can u <br><br><br> willl make u brainliest

Tcecarenko [31]

Work and Answers for First Page:

1.

A: 400ml for €2.00. A: 400/2 = 200ml per €1

B: 1500ml for €5.00. B: 1500/5 = 300ml per €1

For the first set, choice B is the best value.

2.

A: 200ml for €1.50. A: 200/1.5 = 133.33ml per €1

B: 500ml for €8. B: 500/8 = 62.5ml per €1

For the second set, choice A is the best value.

3.

A: 1000ml for €4.50. A: 1000/4.5 = 222.22ml per €1

B: 1500ml for €5.80. B: 1500/5.8 = 258.62ml per €1

For the third set, choice B is the best value.

Work and Answers for Second Page:

1.

200g for €3.00: 200/3 = 66.66

2kg ---> 2000g for €5.00: 2000/5 = 400

For this set, B is the better value.

2.

700g for €4.00: 700/4 = 175

3.4kg ---> 3400g for €7.00: 485.71

B is the better value.

3.

500g for €2.80: 500/2.8 = 178.57

3.8kg ---> 3800g for €7.00: 3800/7 = 542.85

B is the better value.

4.

500g for €4.80: 500/4.8 = 104.16

1.8 --> 1800g for €7.50: 1800/7.5 = 240

B is the better value.

3 0

2 years ago