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Luda [366]
3 years ago
12

Find the volume of the sphere need help

Mathematics
1 answer:
Ivanshal [37]3 years ago
4 0

Answer:

36pi

Step-by-step explanation:

volume = (4/3) · π · r3

in this case r = 3

4/3 x pi x r^3

3 cubed = 27

27 x pi x 4/3

27 x 4/3 = 36

36\pi is the answer

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the 25 members of the reading club are buying a book to discuss at the next meeting but Club leader got a special price the book
Sever21 [200]
25*8.14=?

Multiply the cost of the book per person ($8.14) by the number of people (25).
6 0
3 years ago
in a AP the first term is 8,nth term is 33 and sum to first n terms is 123.Find n and common difference​
allsm [11]

I believe there is no such AP...

Recursively, this sequence is supposed to be given by

\begin{cases}a_1=8\\a_k=a_{k-1}+d&\text{for }k>1\end{cases}

so that

a_k=a_{k-1}+d=a_{k-2}+2d=\cdots=a_1+(k-1)d

a_n=a_1+(n-1)d

33=8+(n-1)d

21=(n-1)d

n has to be an integer, which means there are 4 possible cases.

Case 1: n-1=1 and d=21. But

\displaystyle\sum_{k=1}^2(8+21(k-1))=37\neq123

Case 2: n-1=21 and d=1. But

\displaystyle\sum_{k=1}^{22}(8+1(k-1))=407\neq123

Case 3: n-1=3 and d=7. But

\displaystyle\sum_{k=1}^4(8+7(k-1))=74\neq123

Case 4: n-1=7 and d=3. But

\displaystyle\sum_{k=1}^8(8+3(k-1))=148\neq123

8 0
3 years ago
There is a bag of marbles that contains 4 blue marbles, 3 red marbles, 2 green marbles, and 1 brown marble. If one was picked at
Semenov [28]

Answer:

2/15

Step-by-step explanation:

P(B,B) = 4/10 x 3/9

= 2/5 x 1/3 or 2/15

7 0
2 years ago
What is the LCM(Least common multiple) of 8 and 100
Sliva [168]
The LCM is 2, Because 2*4=8 and 2*50=100 :)
8 0
3 years ago
Read 2 more answers
Use 3 for at Volume of a Cylinder
pychu [463]

Step-by-step explanation:

464.5cm³

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3 0
2 years ago
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