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3 years ago

5) If f(x)=x2-x, what is f(-5)? A. -30 B. -20 C. 20 D. 30

1 answer:

7 0

You simply plug it in.

f(x) = x^2 - x
f(-5) = -5^2 - (-5)
f(-5) = -25 - (-5)
f(-5) = -20

hope this was helpful for you.

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Which one is it A B or c

sveticcg [70]

Answer:

Step-by-step explanation:

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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

Nitella [24]

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

1 hour ...........................> $\frac{2}{7}$ of a cup

?? hours ......................> $1\frac{17}{42}$ cups

Time taken = $\frac{1\frac{17}{42}*1 }{\frac{2}{7} } = \frac{59}{12} = 4\frac{11}{12} hours$

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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3 years ago

Read 2 more answers

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3 years ago

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3 years ago

There were 724 zombies that attacked a player in Call of Duty. The player killed 65%. How many zombies did the player kill?

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Answer:

470 zombies

Step-by-step explanation:

To find how many they killed, multiply 724 by 0.65

724(0.65)

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Round down to 470, since there can only be a whole number for zombies

So, the player killed approximately 470 zombies

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2 years ago