3 years ago

in a bag, there are 5 red marbles, 2 blue marbles and 3 purple marbles. what is the probability of drawing a purple marble

Mathematics

1 answer:

scZoUnD [109]3 years ago

7 0

Answer:

The probability of drawing a purple marble is 3/10

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12^13–12^12+12^11 is divisible by 7 and 19.

fiasKO [112]

Answer:

The statement is true

Step-by-step explanation:

The question is as following :

$12^{13}-12^{12}+12^{11}$ is divisible by 7 and 19, true or false?

The given expression is $12^{13}-12^{12}+12^{11}$

Take $12^{11}$ as a common

$12^{13}-12^{12}+12^{11} = 12^{11}*(12^2-12^1+12^0)\\= 12^{11} *(144-12+1)\\=12^{11} * 133\\= 12^{11} * 7 * 19$

So, $12^{11} * 7 * 19$ divided 7 = $12^{11} * 19$

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$12^{13}-12^{12}+12^{11}$ is divisible by 7 and 19 (<u>True</u>)

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3 years ago

Walters savings account has a balance of $273. After 5 years, what will the amount of interest be at 5% compounded quarterly?

I am Lyosha [343]

The answer is $350

The formula is as follows: $P(1+r/n) ^{nt}$

P: Principal Amount : $273
r: Rate of interest: 5%
n: number of times the interest is compounded: 4 (Since Quarterly)
t: number of years : 5

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