1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
devlian [24]
3 years ago
8

1. Which of the following is an irrational number? How do you know? Use key words and definitions to explain your answer choice.

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
4 0

1:-

0.25

  • it should be in p/q form

\\ \rm{:}\twoheadrightarrow 0.25

\\ \rm{:}\twoheadrightarrow \dfrac{25}{100}

\\ \rm{:}\twoheadrightarrow \dfrac{1}{4}

  • q not equal to zero hence proved

2:-

Its Slightly false.

Counter example :-

The sum of two rational numbers is may be rational. The sum of two irrational numbers is always irrational.”

ex:-

\\ \rm{:}\twoheadrightarrow \dfrac{1}{2}+\dfrac{1}{2}

\\ \rm{:}\twoheadrightarrow 1

3:-

NOTA

\\ \rm{:}\twoheadrightarrow 6(94)+7+(3+2)

\\ \rm{:}\twoheadrightarrow 564+7+5

\\ \rm{:}\twoheadrightarrow 576

You might be interested in
33% of what number is 1.45
Luba_88 [7]
Approximatley 4.39. If thought of like .33X=1.45, then you just divide 1.45 by .33
3 0
4 years ago
Read 2 more answers
Law of Syllogism.
stiks02 [169]

Answer:

true

Step-by-step explanation:

if it is 10,20,30,40etc...

10÷5=2

20÷5=10

30÷5=15

40÷5=20

3 0
3 years ago
List two advantages of buying and two advantages of renting
Ede4ka [16]
Here are your answers:                                                                                   Renting:                                                                                                               1. When you rent something you will have for a good amount of time.               2. When you rent something you have control over it since you rented it with your money.                                                                                                    Buying:                                                                                                                 2, You get to keep it forever.                                                                      3. you can sell it for more so you can make a profit to buy something else.
7 0
3 years ago
Read 2 more answers
Given that f:x→ax+b and f²:x→4x+9, find the value of the constants a and b​
zimovet [89]

Answer:

Step-by-step explanation:  

hello :

ax+b =4x+9     so a=4 and b=9

4 0
3 years ago
Vail Resorts pays part-time seasonal employees at ski resorts on an hourly basis. At a certain mountain, the hourly rates have a
notsponge [240]

Answer:

z=0.842

And if we solve for a we got

\mu=13.16 +0.842*3=15.69

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the hourly rates of a population, and for this case we know the distribution for X is given by:

X \sim N(\mu,3)  

For this part we want to find a value a, such that we satisfy this condition:

P(X>13.16)=0.20   (a)

P(X   (b)

Both conditions are equivalent on this case. We can use the z score again in order to find the value a.  

As we can see on the figure attached the z value that satisfy the condition with 0.80 of the area on the left and 0.20 of the area on the right it's z=0.842. On this case P(Z<0.842)=0.8 and P(z>0.842)=0.20

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=0.842

And if we solve for a we got

\mu=13.16 +0.842*3=15.69

3 0
3 years ago
Other questions:
  • Plz help asap !!! markin brainiest !!!
    14·1 answer
  • I found a place that will give me a 20% discount if I spend over $50. My bill is $75. How much money will I save?
    12·2 answers
  • Which of the following statements is true about 63 and 20?
    9·2 answers
  • 16 feet perimeter 5 feet long what is the width
    14·1 answer
  • has a depth of 28 inches, a width of 36 inches, and a height of 66 inches. What is the volume of the refrigerator?
    12·1 answer
  • What is the area of this parallelogram?
    12·2 answers
  • Calculate the surface area and the volume of the cylinder.
    7·1 answer
  • Hi here is the problem
    9·1 answer
  • How to go in minutes from hours and hours to minutes answer in picture welcome in advance​
    14·1 answer
  • Let A = {x : 2x² + 3x - 2 = 0} and B = {x : x² + 3x - 4 = 0 } find (A U B) × (A Π B)​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!