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netineya [11]
2 years ago
14

How many terms of the arithmetic series 3+9+15.... will add up to 19200?​

Mathematics
1 answer:
Olenka [21]2 years ago
4 0

Answer:

32 005

Step-by-step explanation:

use this formula

Tn = a +(n-1)d

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A contractor purchases a shipment of 100 transistors. It is his policy to test 10 of these transistors and to keep the shipment
Serjik [45]

Answer:

Hence the probability of the at least 9 of 10 in working condition is 0.3630492

Step-by-step explanation:

Given:

total transistors=100

defective=20

To Find:

P(X≥9)=P(X=9)+P(X=10)

Solution:

There  are 20 defective and 80 working transistors.

Probability of at least 9 of 10 should be working out 80 working transistors

is given by,

P(X≥9)=P(X=9)+P(X=10)

<em>{80C9 gives set of working transistor and 20C1 gives 20 defective transistor and 100C10 is combination of shipment of 10 transistors}</em>

P(X≥9)={80C9*20C(10-9)}/(100C10)+{80C10*20(10-10)}/(100C10)

<em>(Use the permutation and combination calculator)</em>

P(X≥9)=(231900297200*20/17310309456440)

+(1646492110120/17310309456440)

P(X≥9)=0.267933+0.0951162

P(X≥9)=0.3630492

4 0
3 years ago
Jeremy is playing a board game and rolls two number cubes. Let A = {the sum of the number cubes is even} and let B = {the sum of
Roman55 [17]

Answer:

A ∩ B = {12}

Step-by-step explanation:

What are the possible even outcomes?  

Assuming the number cubes are 1-6,

our possible outcomes run from 2-12, but we are looking for even rolls, so A={2,4,6,8,10,12}.  

How many of those are divisible by 3?  B={12}.  

We are looking for what is in common between these, so

A ∩ B= {12}

7 0
3 years ago
A 2 month member ship to the gym costs $125.Jim Jim would like to be a member for eight months what is the total amount he will
Bumek [7]
Steps:

125 divided by 2 (to find the cost for one month) ans: $62.50

Then you multiply $62.50 times 8 to find the total cost for 8 months ans: $500.00

I hope this helped
8 0
3 years ago
Pls let me know in 5 min or I’m dead
Kitty [74]

Answer:

( 0 , 4 )

Step-by-step explanation:

Your estimate is correct

4 0
3 years ago
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ASAP! WILL BRAINLIEST PERSON WHO ANSWERS FIRST! PLEASE!
klio [65]
Answer: long range

Explanation: it mainly effects long range areas but can also affect short range if it need to
7 0
3 years ago
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