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3 years ago

Is the expression (-2m)^100 positive or negative when it is simplified?

Mathematics

1 answer:

Varvara68 [4.7K]3 years ago

3 0

Answer:

positive

Step-by-step explanation:

the reasoning behind this is because when you do powers you multiply the number by itself. If you multiply -2x-2 then it turns into a positive number and will stay a positve number

have a great day :D

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ziro4ka [17]

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3 years ago

tamara has completed 60% of her practice time for the track meet. If she is expected to practice for 18h, how long has she alrea

anyanavicka [17]

Answer:

10h and 48min

Step-by-step explanation:

60*18=1080

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3 years ago

Any time Speedy the Sloth is not sleeping, she drinks chamomile tea at a steady rate of 2/7 of a cup per hour. Yesterday, she dr

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Answer:

She stayed awake for 295 minutes today

Explanation:

We are given that:

Yesterday, she drank one cup

Today, she drank $\frac{17}{42}$ of a cup more than yesterday

This means that:

Number of cups she drank today = $1+\frac{17}{42}=1\frac{17}{42}cups$

Now, we know that she drinks $\frac{2}{7}$ of a cup per hour any time she is not sleeping

We use cross multiplication to get the time she took to drink $1\frac{17}{42}$ cups

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This means that she was awake for $4\frac{11}{12}$ hours

Finally, we convert this to minutes:

Knowing that 1 hour has 60 minutes, therefore:

She stayed awake for $4\frac{11}{12} * 60 = 295$ minutes

Hope this helps :)

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