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4 years ago

Is 5.78778777 a rational or irrational number?..

1 answer:

5 0

That number is the ratio of 578,778,777 to 100,000,000 , so it's rational.

Here's a surprising factoid:

ANY number that you can completely write down on paper with digits...
and a decimal point or a fraction bar if you need them ... is rational.

If you can write it down ... without saying "repeating" or using symbols ...
it's rational.

You might be interested in

N is an integer. write the values of n such that -15<3n<img src="https://tex.z-dn.net/?f=%5Cleq" id="TexFormula1" title="

Hoochie [10]

Answer:

$-4, -3, -2, -1, 0, 1, 2$

Step-by-step explanation:

$\frac{-15}{3}$ (Divide all sides by 3 to make it easier to understand)

$-5$

Now you can just look at all of the possible values for n, knowing that it's an integer.

$-5$ is less than $n$ , so we know that $n$ 's lowest value must be $-4$ .

We also know that $n$ is less than or equal to $2$ , so the highest value of $n$ must be $2$ .

Now you can count through the remaining integers from $-4$ to $2$ .

7 0

3 years ago

Which of the following fractions is the largest: 13/16, 3/4, 7/10, or 5/8?

kotykmax [81]

13/16 is the greatest

8 0

4 years ago

Complex zeros of 4x^4-13x^3+31x^2+293x-75

AnnZ [28]

Sorry could you elaborate a bit further on the question

3 0

3 years ago

Nine people are going on a skiing trip in 3 cars that will hold 2, 4 and 5 passengers, respectively. In how many ways is it poss

8090 [49]

Number of ways = 9P8 * 2P1 + 9P7 * 2P2 = 2(362880) + 2(181440) = 1,088,640

4 0

3 years ago

Find the length of x

qaws [65]

Answer:

x = 3

Step-by-step explanation:

Hi there!

1) Prove similarity

The two triangles are similar due to angle-angle similarity. They both have an angle measured 90 degrees and the angles of the two corners that touch are equal, because opposite angles are equal.

2) Solve for x

Now, we can set up a proportion to solve for x:

$\frac{x}{4} =\frac{4.5}{6} \\x=\frac{4.5}{6} *4\\x=3$

Therefore, x is 3 units long.

I hope this helps!

3 0

3 years ago