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almond37 [142]
2 years ago
5

It is too confusing for me

Mathematics
1 answer:
atroni [7]2 years ago
8 0
I think this is it.

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A cylindrical metal pipe has a diameter of 8.4 millimeters and a height of 10 millimeters. A hole cut out of the center has a di
zhannawk [14.2K]

To solve this problem, we simply use the equation of volume for hollow cylinders:

V = π h (R^2 – r^2)

where V is volume, h is height = 10, R is outer radius = 8.4/2 = 4.2, r is inner radius = 6/2 = 3

 

V = π (10) (4.2^2 – 3^2)

<span>V = 86.4π = 271.43 mm^3</span>

3 0
3 years ago
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PLEASE HELP!!!!! 3, 8, 13, 18, 23, ....<br><br> The recursive formula for this sequence is:
rodikova [14]

Answer:

a₈ = 37

Step-by-step explanation:

The given arithmetic sequence is: 3, 8, 13, 18, 23, . . .

The recursive formula for the sequence is: $ a_n = a_{n - 1} + 5 $

Here, $ a_n $ represents the $ n^{th} $ of the sequence.

And, $ a_{n - 1} $ represents the $ (n - 1)^{th} $ of the sequence.

'+5' denotes that '5' is added to the $ (n - 1)^{th} $ term to get the $ n^{th} $ term. In other words, the difference between two consecutive numbers in the sequence is 5.

Now, we are asked to find a₈ i.e., n =8.

Substituting in the recursive formula we get: a₈ = a₍₈₋ ₁₎ + 5 = a₇ + 5.

So, to determine a₈ we need to know a₇. From the sequence we see that a₅ = 23.

⇒ a₆ = 23 + 5 = 28.

⇒ a₇ = 28 + 5 = 32.

⇒ a₈ = 32 + 5 = 37.

Therefore, the $ 8^{th} $ term of the sequence is 37.

8 0
3 years ago
For which x-values is the graph below discontinuous?
aleksandr82 [10.1K]

Answer:

A

Step-by-step explanation:

3 0
2 years ago
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PLEASE ANSWER I WILL MARK BRAINLIEST AND AWARD A LOT OF POINTS!!!!!Jeremiah is creating a playlist that has only one song from e
lord [1]

Answer:

448

Step-by-step explanation:

4*2*7*8=448 different combinations

6 0
3 years ago
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Can someone help me with this if it right I give you a Brainliest
notka56 [123]
3 nickles plus 8 pennies
(3x5)+(8x1) = 15 + 8 = 23
= 23¢
4 0
3 years ago
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