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3 years ago

Why can we write zeros after a number when we multiply by 10, 100, or 1000.

Mathematics

1 answer:

allochka39001 [22]3 years ago

3 0

Answer:

IT shows that we are increasing the value of the number. The more zeros at the end of a number that you multiply by, the bigger the number will be.

Examples: 76x100=7600

100x100=10,000

However many zeros are behind the number is what you add to the product.

Step-by-step explanation:

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grigory [225]

Answer:

B) Hundreds

Step-by-step explanation:

The number 238 is in the hundreds as the first digit is in the hundreds. You can tell because you say "two hundred."

Hope this helps

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4 years ago

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Buy how many ever u want of the 4 inch it is a better deal

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3 years ago

What are the prime numbers starting from 1

Varvara68 [4.7K]

2,3,5,7,11,13,17,19,23,29,31,37,41,43,47

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3 years ago

A certain shade of green paint is made from 5 parts yellow mixed with three parts blue. If 2 cans of yellow are used, how many c

svp [43]

Answer:

0.5 cans. So you would have to buy 1.

Step-by-step explanation:

I hope this helps!!!

7 0

3 years ago

Consider a bettering game where you bet $10 and have a probability of 0.45 of getting $20 back ($10 more than you started with)

Marina CMI [18]

Answer:

(a)

$f(x) = P(X=x) = \begin{Bmatrix} 0.45 \,\,\, \text{for} \,\,\, x = 10 \\ 0.55 \,\,\, \text{for} \,\,\, x = -10 \end{matrix}$

(b)

-1

(c)

Step-by-step explanation:

(a)

Your random variable will have two possible values, 30 and 0, one of them with a probability of 0.45 and the other one with a probability of 0.55. Therefore it looks like this.

$f(x) = P(X=x) = \begin{Bmatrix} 0.45 \,\,\, \text{for} \,\,\, x = 10 \\ 0.55 \,\,\, \text{for} \,\,\, x = -10 \end{matrix}$

(b)

The expected value of this PMF would be

$E[X] = -10*0.55+10*0.45= -1$ therefore on average you will have a dollar less.

(c)

For this one, if you play 20 times and your initial amount is 50$ then you have to compute the following expectation.

$E[50+20*X] = 50+20*E[X] = 50-20 = 30$

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3 years ago