All categories

3 years ago

Which number is NOT rational?

Mathematics

2 answers:

Novosadov [1.4K]3 years ago

5 0

Answer:

B. $\sqrt{5}$

Step-by-step explanation:

kirill [66]3 years ago

3 0

The answer would be B cause you can’t take the square root of 5 cause you’ll get a decimal

You might be interested in

Answer if you can and help other people out

oksano4ka [1.4K]

<h2>Answer:</h2><h2>131.964 cm</h2>

Solution,

radius=21 cm

Circumference of circle=2 pi r

 =2*3.142*21

 =131.964 cm

hope it helps

Good luck on your assignment

8 0

3 years ago

Read 2 more answers

A line through slope -2 and y-intercept 4

m_a_m_a [10]

Answer:

y = -2x + 4

Step-by-step explanation:

When given a slope, and y intercept, this means the question is asking us to write the equation in slope-intercept form, which is y = mx + b.

Plug in the values.

y = -2x + 4

7 0

3 years ago

Create a real-world problem that represents 2/3 and 2/5.

natali 33 [55]

Answer: Hi!

Sara had 2/3 of a piece of cake. Jasmine had 2/5 of a piece of cake. How much cake did Sarah and Jasmine have in total?

Hope this helps!

5 0

3 years ago

Read 2 more answers

View the screenshot and answer please. 20 points will give brainliest!

Paul [167]

Answer:

Right angle triangle goes to 15m, 8m, 17m

Step-by-step explanation:

Square root of 15^2 + 8^2 is 17

(The use of a^2 + b^2 = c^2 - Pythagoras's Theorem)

So, 10m ,11m ,15m isn't a right angle triangle

Hope this helps!

6 0

2 years ago

A researcher working in a Human Resources department was interested in gender and sales figures so he conducted a t-test. The me

irina1246 [14]

Answer:

$d = \frac{78.24 -66.25}{\sqrt{\frac{7^2 +7^2}{2}}}= 1.713$

For the interpretation we consider a value for d small is is between 0-0.2, medium if is between 0.2-0.8 and large if is higher than 0.8.

And on this case 1.713>0.8 so we have a large effect size

This value of d=1.713 are telling to us that the two groups differ by 1.713 standard deviation and we will have a significant difference between the two means.

Step-by-step explanation:

Previous concepts

The Effect size is a "quantitative measure of the magnitude of the experimenter effect. "

The Cohen's d effect size is given by the following formula:

$d = \frac{\bar X_1 -\bar X_2}{\sqrt{\frac{s^2_1 +s^2_2}{2}}}$

Solution to the problem

And for this case we can assume:

$\bar X_1 =78.24$ the mean for females

$\bar X_2 =66.25$ the mean for males

$s_1 = s_2= 7$ represent the deviations for both groups

And if we replace we got:

$d = \frac{78.24 -66.25}{\sqrt{\frac{7^2 +7^2}{2}}}= 1.713$

For the interpretation we consider a value for d small is is between 0-0.2, medium if is between 0.2-0.8 and large if is higher than 0.8.

And on this case 1.713>0.8 so we have a large effect size

This value of d=1.713 are telling to us that the two groups differ by 1.713 standard deviation and we will have a significant difference between the two means.

4 0

3 years ago