Suppose that IQ scores have a bell-shaped distribution with a mean of 104 and a standard deviation of 18. Using the empirical rule, what percentage of IQ scores are between 50 and 158?

Answer:

500

Step-by-step explanation:

Answer:

65%,0.7,2/3,5/8

Step-by-step explanation:

Answer:

5/8, 65%, 2/3, 0.7

Step-by-step explanation:

5/8 = .625

65% = .65

2/3= .667

.7 = .7

Answer:

closest to 1

Step-by-step explanation:

The given fraction is converted into decimal to find the closest value as 1.

A fraction is a number written in the form a / b, where a and b are integers and b ≠ 0.

The number a is called as the numerator and b is the denominator.

The given fraction is 17/21.

It can be written in decimal as below,

⇒ 17/21 = 0.809

Now, the given decimal can be compared with 0, 1/2 and 1 as follows,

0.89 > 0, 1/2 and 0.89 < 1

Which implies that it is closest to 1.

Hence, the given fraction 17/21 is closest to the integer 1.

To know more about fraction click on,

https://brainly.com/question/10354322

#SPJ2

Answer:

x = -6 and y = 1

Step-by-step explanation:

Answer:

Step-by-step explanation:

In this scenario, the dependant variable would be the total cost of the rental for the bike. This is because the actual cost depends on the number of hours that the individual has decided to rent the bike. The independant variable is the number of hours that they chose to rent the bike since it does not depend on any other factor in the scenario.

Answer:

B.

Step-by-step explanation:

It says that when her brother gives her an encouraging look, it boosts her confidence. So, I would assume it'd be that one.

Answer:

C.

She recalls the times when her mother prepared her for the ceremony.

B. is the answer i did the test and it was right

Answer:

105

Step-by-step explanation:

Answer:

$105 for each member per concert

Step-by-step explanation:

700 - 175 = 525

525 divided by 5 = 105

no hhahahahahahaahahaahahhaahha

Answer:

Slope = 4

Step-by-step explanation:

The slop of the line is going to be rise over run.

So take where it the y value is 20 as [tex]y_1[/tex], and where it hits about 32 as value [tex]y_2[/tex].

You have you x value when y1 as 5 and x value at yw as 8.

So what you will do here is

[tex]\frac{y_2 - y_1}{x_2-x_1}[/tex]

[tex]\frac{32-20}{8-5}[/tex]

[tex]\frac{12}{3} = 4[/tex]

So your slope is 4.

Answer:

=Yx(5x+8n

=ax(4a+2b-1)

Step-by-step explanation:

Answer:

oh dang i hated doing these when i was in sixth grade lol umm  55?????

Step-by-step explanation:

Answer:

Let's denote students in D = in the drama club , S = in a sports team

P(D) = 85/330

P(S) = 200/330

P(D and S) = 60/300

P(D or S) = P(D) + P(S) - P(D and S)  = 85/330 + 200/330 - 60/330 = 15/22

P(neither D nor S) = 1- 15/22 = 7/22

Step-by-step explanation:

Answer:B) 20 hours

Step-by-step explanation:

15000 per one hour and if we multiply them all we get 300,000 smartphones if we do 15,000 multiplyed by 20. Hope it helps!

Answer:

20 h

Step-by-step explanation:

just do 15 x 20 then add the remaining zeros

Answer:

23.8

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

B). 1/6

Step-by-step explanation:

There's 2 sides with length 1/4 and one side with length x.

2 * 1/4 + x = 2/3

2/4 + x = 2/3

6/12 + x = 8/12

x = 2/12

x = 1/6

B is the correct answer because 1/6 is the simplest form of the fraction, while 2/12 is not.

Answer:

275

Step-by-step explanation:

Answer: I gave the evaluate answer and the differentiate w.r.t x answer. Sorry for caps.

Step-by-step explanation: EVALUATE  x4n−3

 DIFFERENTIATE W.R.T. X  (4n−3)x4(n−1)

Answer: 22+62÷22

22+2.8181

24.8181

So 22+62÷22 is about 24.8181

hope this helps have a nice day❤️❤️❤️

Step-by-step explanation:

Answer:

22.73

Step-by-step explanation:

22+62=84

84/22=22.7380952381

Answer: X=4 Y=-6

Step-by-step explanation:

Well we know that y= -4x+10

So we can input that into the bottom equation

2x +2(-4x+10) = -4

2x +-8x+20=-4

-6x + 20= -4

-6x = -24

x = 4

We also have to find the value of Y

y=-4(4)+10

y= -16 + 10

y=-6

Answer:

Step-by-step explanation:

2x + 2y = -4

Substitute (-4x+10) for y:

2x + 2(-4x+10) = -4

2x -8x + 20 = -4

-6x = -24

x = 4

Answer:

x = -3

Step-by-step explanation:

To answer this question, you should first remember that the inside angles of a triangle will always add up to 180 degrees. Therefore, we can make an equation and solve it form there:

55 + 54 + (x + 74) = 180

We add like terms:

109 + (x + 74) = 180

Continue adding like terms:

183 + x = 180

Next, we dubtract to siolate the "x" variable:

x = -3

Hope this helps :)

x=-3

Step-by-step explanation:

To start off, you're going to want to know and understand that all the angles of triangle equal 180 degrees.

Now that we know a triangle equals 180 degrees, lets make an equation. This is equation can be 55+54+74+x=180.

Now, lets combine the like terms in the equation. The equation now becomes 183+x=180.

From here, we subtract 180 from both sides, which would get us x=-3.

To double check that this is correct and that it works, you can plug in the -3 where the x would be.

I hope this helped!! Let me know if you have any further questions.

Answer:

0.90 seconds

Step-by-step explanation:

We will see that one complete revolution takes (2π/7) seconds.

Here we have the function:

f(x) = 33sin(7x−π/12) + 33

The time needed to do a full revolution is given by the period of the function.

Remember that:

sin(x) = sin(x + 2π).

Then:

sin(7x−π/12) = sin(7*(x + T) −π/12)

Then we must have:

2π = 7*T

Where T is the period.

Solving for T, we have:

2π/7 = T

This means that one complete revolution takes (2π/7) seconds.

If you want to learn more about sine functions, you can read:

https://brainly.com/question/9565966

#SPJ2

Answer:

27/8

Step-by-step explanation:

3 3/8

you multiply the denominator by the whole number and then add into numerator. so

8 x 3 = 24

           24+ 3 =27

Answer= 27/8

Answer:

First we have to found all the clothes that the manufacturer produces in 8 hours,

As given    120 clothes = produce in 1 hour

                  X clothes  = produce in 8 hour

By cross multiplication, we get

X= 120*8

X= 960  total clothes produced in 8 hours

As also given that in each hour 5 clothes damaged ,so we can write as

 5 clothes = damaged in 1 hour

Y clothes = Damaged in 8 hour

By cross multiplication we get

Y=  40 clothes damaged in 8 hour

So the total clothes that manufacturer produce with out damage clothe will be ,

Total normal clothes = X-Y   = 960 - 40  = 920 clothes

Answer:

the clerk will make $8.65 an hour

Step-by-step explanation:

Answer:

P is the dependent variable, H is the independent variable

Step-by-step explanation: