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mart [117]
3 years ago
9

Given that V=4/3πrcube , make r the subject of formula​

Mathematics
1 answer:
Sonbull [250]3 years ago
6 0

Answer:

V =  \frac{4}{3} \pi {r}^{3}  \\  \\ 3V = 4\pi {r}^{3}  \\  {r}^{3}  =  \frac{3V}{4\pi}  \\  \\ r =  \sqrt[3]{ \frac{3V}{4\pi} }

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What the mean of 55, 899, 594, and 43648 is
Oduvanchick [21]
Mean is the average of all the numbers so you add them all together and the amount of numbers you added together you divide that by the addition to get the mean. The mean for those 4 numbers is  11,299. Hope I helped!
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3 years ago
Noah and Lin are making paper cones to hold popcorn to hand out at parent math night. They want the cones to hold 9 cubic inches
DanielleElmas [232]

Answer:

So, The possible values of h and r are

1. r = 3 , h = 3

2. r = 1, h = 27

3. r = 2, h = 6.75

Step-by-step explanation:

P.S - The exact ques is -

As we know that Volume of cone , V = \frac{1}{3}\pi r^{2}h

As given,

V = 9\pi

⇒\frac{1}{3}\pi r^{2}h = 9\pi \\  \frac{1}{3} r^{2}h = 9 \\r^{2}h = 27

So,

The possible values of h and r are

1. r = 3 , h = 3

2. r = 1, h = 27

3. r = 2, h = 6.75

In Case I-

When r = 3, h = 3

(3)² ×3 = 9×3 = 27

Satisfied

Case II-

r = 1, h = 27

(1)²×27 = 1×27 = 27

Satisfied

Case III-

r = 2, h = 6.75

(2)²×6.75 = 4×6.75 = 27

Satisfied

8 0
3 years ago
Describe the leading coefficient,
Orlov [11]
It’s Negative below the lines the touching points do not meet
8 0
3 years ago
In 0.73, in which place is the 0
Svetllana [295]

Answer:

The digit '0' is in the ones place.

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2 years ago
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Please help me with the 3rd question!!! I'll give you 91 points now, please.
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Answer:

At the end of the day 797 lockers were closed.

Step-by-step explanation:

So first of all you need to find out how many even numbers there are from 1-900 (which is 450) so you know that 450 are open. In the 3 multiplication tables every second number is even so you know that half of the 450 lockers that was opened was closed again: this meant that 225 lockers remained open.

You also know that every number in the 4 multiplication tables is the second number in the 2 multiplication tables so half of them are closed but you also know that the 900th locker was opened so now you have 113.

So to conclude you do 900-113 which gives you 797 (this is because 113 is the amount of lockers that is open)

3 0
4 years ago
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