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
LenaWriter [7]
3 years ago
6

Which one of the following is an irrational number?

Mathematics
1 answer:
kondaur [170]3 years ago
7 0

Answer:

sqrt(10)

Step-by-step explanation:

Since the second number ends and does not continue it wouldn't be the second one, and since the third is able to be predicted it wouldn't be the thrid one either and since the fourth one is 7 and is a whole number the only answer choice possible would be the first one.

You might be interested in
Select the equation below that could represent:
Irina-Kira [14]

Answer:

I think it might be the 2 one

3 0
3 years ago
We learned in that about 69.7% of 18-20 year olds consumed alcoholic beverages in 2008. We now consider a random sample of fifty
maw [93]

Answer:

(1) The expected number of people who would have consumed alcoholic beverages is 34.9.

(2) The standard deviation of people who would have consumed alcoholic beverages is 10.56.

(3) It is surprising that there were 45 or more people who have consumed alcoholic beverages.

Step-by-step explanation:

Let <em>X</em> = number of adults between 18 to 20 years consumed alcoholic beverages in 2008.

The probability of the random variable <em>X</em> is, <em>p</em> = 0.697.

A random sample of <em>n</em> = 50 adults in the age group 18 - 20 years is selected.

An adult, in the age group 18 - 20 years, consuming alcohol is independent of the others.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> = 50 and <em>p</em> = 0.697.

The probability mass function of a Binomial random variable <em>X</em> is:

P(X=x)={50\choose x}0.697^{x}(1-0.697)^{50-x};\ x=0,1,2,3...

(1)

Compute the expected value of <em>X</em> as follows:

E(X)=np\\=50\times 0.697\\=34.85\\\approx34.9

Thus, the expected number of people who would have consumed alcoholic beverages is 34.9.

(2)

Compute the standard deviation of <em>X</em> as follows:

SD(X)=\sqrt{np(1-p)}=\sqrt{50\times 0.697\times (1-0.697)}=10.55955\approx10.56

Thus, the standard deviation of people who would have consumed alcoholic beverages is 10.56.

(3)

Compute the probability of <em>X</em> ≥ 45 as follows:

P (<em>X</em> ≥ 45) = P (X = 45) + P (X = 46) + ... + P (X = 50)

                =\sum\limits^{50}_{x=45} {50\choose x}0.697^{x}(1-0.697)^{50-x}\\=0.0005+0.0001+0.00002+0.000003+0+0\\=0.000623\\\approx0.0006

The probability that 45 or more have consumed alcoholic beverages is 0.0006.

An unusual or surprising event is an event that has a very low probability of success, i.e. <em>p</em> < 0.05.

The probability of 45 or more have consumed alcoholic beverages is 0.0006. This probability value is very small.

Thus, it is surprising that there were 45 or more people who have consumed alcoholic beverages.

6 0
2 years ago
Which of the following represents an equation of a line parallel to one whose equation is 2x + 8x = 18
Naya [18.7K]

Answer:

y=-4x+3

Step-by-step explanation:

it does not show the equations that are following

but the main thing you need to know is that when two lines are parallel they have the same slope

and do you mean 2x+8y=18 not x?

edit:

answer choices: y=-4x+3, y=8x-2, y=4x+7, y=-8x+9

2y+8x=18

first change that equation to slope intercept form to find the slope

2y = -8x+18 -> y = -4x+9

slope is -4

so the answer is y=-4x+3 because it also has a slope of -4

5 0
3 years ago
The radius of a sphere with a surface area of 36pi square meters
Marysya12 [62]

Answer:

Step-by-step explanation:

surface area=4πr²=36π

r²=9

r=3

5 0
3 years ago
Find the point that is symmetric to the point (0,8) with respect to the​ x-axis, the​ y-axis, and the origin.
Sergio039 [100]

Here's link to the answer:

tinyurl.com/wpazsebu

4 0
3 years ago
Other questions:
  • aneesha travels at a rate of 50 miles per hour .Morris is taveling 3 feet per second less then aneesha .which is the best estima
    10·1 answer
  • How do you solve this... 8=x-5/7
    7·2 answers
  • Diego's mother is twice as old as he is she is also as old as the sum of the ages of diego and both of his younger twin brothers
    9·1 answer
  • Find an exact value cos 75°
    7·2 answers
  • A population of 100 frogs increases at an annual rate of 22%. How many frogs will there be in 5 years? Write an expression to re
    6·1 answer
  • Step 1: -3(+ 2) = 5(x - 7)
    15·1 answer
  • The table shows the price of bagels at two different stores:
    5·2 answers
  • -what is the answer<br>​
    12·1 answer
  • What is the remainder when f(x) is divided by x-2 given that f(x)=4x^3-2x^2+x-13?​
    7·1 answer
  • Sara uses 7.6 pints of blue paint and white paint to paint her bedroom walls. 3 4 of this amount is blue paint, and the rest is
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!