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3 years ago

6th one....pls help me out

Mathematics

1 answer:

zmey [24]3 years ago

4 0

Now , For 12n to end with 0, it should have 2 as well as 5 in its Prime factors to end with 0, Also to end with 5 , it requires at least a single multiple of 5 in its Prime Factors, So 12n cannot end with the digit 0 or 5.

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Probability Question: A student is taking a multiple choice question. Each question has 4 choices. There are 20 question in the

Eddi Din [679]

Answer: 0.9961

Step-by-step explanation:

Given: Total choices to each question = 4

So, the probability that an answer is correct = $\dfrac{1}{4}=0.25$

Total questions = 20

i.e. n= 20

Let x be the binomial variable that represents the number of correct answers.

So, the probability that the student has at least 10 correct answers.

$B(x=10;n=20, p=0.25)=\sum\limits_{i=0}^{x}(i;n=20,p=0.25)$

$=0.9961$ [By using cumulative binomial table]

Hence, the probability that the student has at least 10 correct answers = 0.9961

3 0

3 years ago

Please help I don’t understand how to do these

steposvetlana [31]

Answer:

I think there would be 86 blue marbles

x=4(106 - x ) + 6

x= 424 - 4x + 6

5x= 430

x= 86 blue marbles

Tell me if I'm wrong, hope this helps.

3 0

3 years ago

Jordan drove for 6 hours at 55 miles per hour, while Matt drove for 3 hours at 60 miles per hour. If Isaac drove 82 miles longer

zepelin [54]

<h3>- - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - </h3>

➷ Use the formula: distance = speed x time

Jordan's distance = 55 x 6

Jordan's distance = 330 miles

Matt's distance = 60 x 3

Matt's distance = 180 miles

330 + 180 + 82 = 592

In short, the answer is 592 miles

➶ Hope This Helps You!

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5 0

4 years ago

This is working backword hope u could help me

Lesechka [4]

I do belive the first one is 30

8 0

3 years ago

Read 2 more answers

Given the supply and demand functions below, find the demand when p = $12.

goblinko [34]

S(p)= 5(12)= $60
D(p)= 120-4(12)= $72

3 0

3 years ago

Read 2 more answers

6th one....pls help me out​

6th one....pls help me out