An irrational number is any number that cannot be written as a fraction of whole numbers. The number pi and square roots of non-perfect squares are examples of irrational numbers. ... , however, is not a perfect square, and its square root, therefore, is irrational.

<h2>Now, the answer to your question. </h2>

√2 is an irrational number since it cannot be written as a ratio of two integers.

look at the picture below to see why√2 is an irrational number

<u />

Please mark me brainliest if this helped.

4 0

3 years ago

Dominos Pizza for years made a claim that they would deliver your pizza within 30 minutes ("30 minutes or less") of your order b

olchik [2.2K]

Answer:

a. t*

b. (22.87, 24.53)

c. yes

Step-by-step explanation:

We have the following data:

mean = m = 23.7

standard deviation = sd = 2.15

x = 20

Thus:

a. The critical value would be t * since the value is m <30

b. whenever the mean is less than 30, the t distribution is used, for 95% confidence interval with degree of freedom = (x - 1) df

= 20 - 1

= 19

now, for this value we look in the table of t, we find that t * = 1.729

m + - t * (sd / x ^ 81/2))

replacing

23.7 + - 1.729 * (2.15 / 20 ^ (1/2))

23.7 + - 0.8312

then the inverval would be:

23.7 + 0.8312 = 24.5312

23.7 - 0.8312 = 22.8688

(22.87, 24.53)

c. yes, the interval is accurate since the mean of 23.7 is within this value

6 0

3 years ago

If n is the larger of two consecutive numbers, write an expression for the other number. Examples of consecutive numbers: 2, 3,

____ [38]

Answer:

The expression for the other number is (n-1)

Step-by-step explanation:

we know that

The difference between two consecutive number is equal to 1

Let

x ----> the smaller of two consecutive number

n ----> the larger of two consecutive numbers

we have that

$n-x=1$

Solve for x

$x=n-1$

therefore

The expression for the other number is (n-1)

8 0

3 years ago