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2 years ago

How does charge Build Up?

1 answer:

7 0

Answer: Charges build up when negative electrons are transferred from one object to another. The object that gives up electrons becomes positively charged, and the object that accepts the electrons becomes negatively charged

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Use mathematical induction to prove that the statement is true for every positive integer n.

Natali [406]

Answer:

3x-4v

it is because of me

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2 years ago

A= 1/2 h (m+n) solve for n

melisa1 [442]

Answer:

2hms+2hns

Step-by-step explanation:

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2 years ago

A box has a length of 6 cm a width of 4 cm and a height of 5 cm what is the volume of the box

Liula [17]

Answer:

120

Step-by-step explanation:

the formula of a box is L x W x H

so since the length is 6 and the width is 4 and the height is 5 you multiply

6x4x5=120

7 0

3 years ago

The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall sem

Lorico [155]

Answer:

1. 1340

2. Variance = 47200, standard deviation = 217.25556

Step-by-step explanation:

If X is the random variable that give the number of admissions, then the expected number of admissions E[X] for the fall semester is

1080*P(X=1080)+1380*P(X=1380)+1540*P(X=1540) =

1080*0.4+1380*0.1+1540*0.5 = 1340

The variance is defined as

$\sigma^2=E[X^2]-(E[X])^2}$

We have

$E[X^2]=(1080)^2*0.4+(1380)^2*0.1+(1540)^2*0.5=1842800$

whereas

$(E[X])^2=(1340)^2=1795600$

So the variance equals

$\sigma^2=1842800-1795600=47200$

The standard deviation is just the square root of the variance, so, the standard deviation is

$\sigma=\sqrt{47200}=217.25556$

8 0

3 years ago

16^x = 64^x + 4 a) x = −12 b) x = −2 c) x = 2 d) x = 12

hoa [83]

$\bf\large{please \: refer \: in \: attachment}$

correct answer is a) x = - 12.
it is tell rude word so i attached my answer.

6 0

2 years ago

How does charge Build Up?​

How does charge Build Up?