Which number is not in scientific notation?

1 answer:

7 0

All of them.

_____
The 4th selection is missing an exponent. (The exponent is improperly indicated in all the numbers.)

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Answer:

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Step-by-step explanation:

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8<br> p varies directly as the square root of q.<br> p = 8 when q = 25.<br> Find p when q = 100.

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Answer:

Step-by-step explanation:

p=k√q

8=k√25

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A raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each. If 20000 tickets are sold at 2

Shalnov [3]

Answer:

The expected winnings for a person buying 1 ticket is -0.2.

Step-by-step explanation:

Given : A raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each. If 20000 tickets are sold at 25 cents each, find the expected winnings for a person buying 1 ticket.

To find : What are the expected winnings?

Solution :

There are one first prize, 2 second prize and 20 third prizes.

Probability of getting first prize is $\frac{1}{20000}$