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Veseljchak [2.6K]

4 years ago

11

How many answers are in each of these three questions: 1. x squared minus three x plus four equals zero 2. Two x squared plus fo

ur x minus five equals zero 3. X squared plus eight x plus sixteen equals zero

1 answer:

vaieri [72.5K]4 years ago

6 0

1. No solutions ( no answers) 2 . 2 answers 3. 1 answer

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31,680 ft = mi<br> A. 6 <br> B. 18 <br> C. 60 <br> D. 2,640

Vlad1618 [11]

5280 feet = 1 mile
31,680 feet = x miles

31,680/5,280 = 6

31,680 feet = 6 miles.

Your answer is A. 6.

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Delicious77 [7]

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3 years ago

Write the following using algebraic notation, using the letter x for any unknown numbers:

Mnenie [13.5K]

Answer:

$\dfrac{x+7}{5}$

Step-by-step explanation:

The given statement is "I think of a number, add seven then divide by five".

Let the unknown number be x.

Now, add 7 to the number = x+7

If we divided them by 5, $\dfrac{x+7}{5}$ .

So, the required algebraic notation is $\dfrac{x+7}{5}$ .

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3 years ago