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3 years ago

The formula for volume of a sphere is V=4/3 nR3, but what does the 4/3 mean and what am supposed to do with it?

Mathematics

1 answer:

kozerog [31]3 years ago

4 0

4/3 or $\frac{4}{3}$ is a worked out constant and you multiply it by π $r^{2}$

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The slopes of perpendicular lines are

jeka94

The slopes of perpendicular lines are opposite and reciprocals.

5 0

3 years ago

Read 2 more answers

Select the correct answer. Consider the function f(x) = 3x and the function g, which is shown below. How will the graph of g dif

Sloan [31]

Answer:

The graph of g is the graph of f shifted up by 3 units.

Step-by-step explanation:

Consider the graph of a function r with real numbers k and h.

Transformation Effect

r(x) + k shifts the graph up k units

r(x) - k shifts the graph down k units

r(x + h) shifts the graph to the left h units

r(x - h) shifts the graph to the right h units

It is given that g(x) = f(x) + 3. Therefore, the graph of g is the graph of f shifted up by 3 units.

8 0

3 years ago

Find the selling price of a $20 item after a 20% markup.

nevsk [136]

Answer:

$24

Step-by-step explanation:

For a markup, use the formula a = ( 1 + p ) × w.

!!! Remember, a is the selling price, and w is the original price !!!

!!! The p is the percent in decimal form. 20% as a decimal is 0.20 (move the decimal twice to the left) !!!

Inserting the values, it should look like a = ( 1 + 0.20 ) × 20

a = 1.20 × 20

a = 24

Hence, the new selling price is $24.

Hope this helps! :)

4 0

3 years ago

The square root of -100 = ___ + ___i

ddd [48]

Answer:

The square root of -100 is 10i

Step-by-step explanation:

7 0

3 years ago

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Raymond has 120 books on his bookshelf that he has not read. He plans on reading 3 books per week until there are only 24 books

Oksi-84 [34.3K]

Answer: The correct option is (A) $120-3w=24;~32.$

Step-by-step explanation: Given that Raymond has 120 books on his bookshelf that he has not read. He plans on reading 3 books per week until there are only 24 books that he still needs to read.

We are to find the equation that can be used to determine the number of weeks it will take Raymond to have only 24 books left.

Also, we are to find the number of weeks.

The number of weeks it will take Raymond to have only 24 books left is represented by 'w'.

We have

number of books read by Raymond is 1 week = 3.

So, number of books read by Raymond is w weeks = 3w.

Since, there are total 120 books on his bookshelf, so the number of books left to read after w weeks will be

$120-3w.$

According to the given information, we get

$120-3w=24\\\\\Rightarrow 3w=120-24\\\\\Rightarrow 3w=96\\\\\Rightarrow w=32.$

thus, the required equation is $120-3w=24$ and number of weeks is 32.

Option (A) is correct.

8 0

3 years ago