For the data set 4, 5, 10, 11, 15, the mean, x, is 9. What is the standard deviation?

Answers

Answer 1
The standard deviation is 4.05
Answer 2

Answer: A

Step-by-step explanation:

4.1


Related Questions

2x+2+2x-17=180 what's x?

Answers

Answer:

x= 48.75

Step-by-step explanation:

Add like terms

2x+2x and

2-17

4x-15=180

Now subtract -15 to both sides get x by itself

4x-15+15=180+15

4x=195

Now divide by four to each side to get x by itself again

4x/4 = 195/4

x=48.75

Answer:

x=48.75

Step-by-step explanation:

2x+2+2x-17=180(Group like terms)

2x+2x+2-17=180

4x-15=180(Add 15 on both sides)

4x-15+15=180+15

4x=195(Divide both sides by 4 to find the value of x)

x=48.75

Fifteen pieces of paper are numbered 1 to 15 and placed in a container. One piece of paper is selected at random, then replaced. The second piece of paper is selected at random. What is the probability that the first piece of paper is marked with a number less than 5 and the second piece of paper is marked with a 12?

Answers

12/15 and 1/15 is the prob

Given: ABCH and DCGF are parallelograms. Complete the proof below by choosing the correct statement for line number 3 and the correct reason for line number 4.

Answers

Answer:

∠BCH ⩭ ∠DCG  ;Opposite angles of a parallelogram are congruent.

Step-by-step explanation:


Dan needs Alison to spruce up his classroom. She charges a flat fee of $40 and
$25 per hour that she words. If Alison makes a total of $290, how many hours did
she work? Write and solve an equation to get your answer.

Answers

Answer:

I think she works 10 hours and 30 minutes

HELP!
What is the scale factor !

Answers

Answer:

A scale factor is usually a decimal which scales, or multiplies, some quantity. In the equation y = Cx, C is the scale factor for x. C is also the coefficient of x, and may be called the constant of proportionality of y to x.

Find the value of X.

Answers

All 3 sides of the triangle are the same, which means all 3 inside angles are the same. Each inside angle is 60 degrees.

We now have 3x = 60

Divide both sides by 3:

x = 60/3

x = 20

Answer:

As in the given figure, all the sides are equal i.e., 5 units

It is a equilateral triangle.

In equilateral triangle all the angles are 60°.

[tex]3x = 60 \\ x = \frac{60}{3} \\ \boxed{x = 20}[/tex]

20 is the right answer.

Find the remainder when f(x) = (3x + 10x² + x - 2) divided by (x + 3)

Answers

It would be x=0.32169905...0.62169905...

Write the ordered pair for each given point:
9) J ___
10) E ___
11) X ___
12) Z ___
13) B ___
14) D ___
15) R ___
16) W ___

I WILL PUT BRAINLIEST!!

Answers

j:-5,9
e:-2,1
x:1,2
z:-8,-3
b:-4,-6
d:-5,1
r:-3,-8
w:0,9
j(-5,9)
e(-2,1)
x(1,2)
z(-8,-3)
b(-4,-6)
d(-5,1)
r(-3,-8)
w(0,9)

Round 723,084 to the nearest thousand.

Answers

Answer:

723,000

Step-by-step explanation:

Answer:

723,000

Step-by-step explanation:

Nearest thousand → 1000

723,000

I need help with this, no matter how hard I do, I don't get the answer. 3 [ 10 ( 16 - 6 + 3 ) ] I don't know what the answer is.​

Answers

the answer is 390

Step-by-step explanation:

don't ask how

Pls help quick………… Math

Answers

C is the answer I got it right
math sucks man, wishing you luck

If 2^3x-1 = 32 then x = (image included)
a. 5
b. -2
c. 2
d. 4/3
e. -4

Answers

Answer:

x is equal to two.

Step-by-step explanation:

We know that 32 is a power of 2.  It is in fact two to the power of five.  So we can re-express that as:

[tex]2^{3x - 1} = 2^5[/tex]

Because they have the same constant as a base, we can toss the base altogether, and equate the exponents:

[tex]3x - 1 = 5\\3x = 6\\x = 2[/tex]

Select the expression below that is equal to 6(10 - m).
A.
16 - m
B.
60 - m
C.
60 - 6m
D.
6m - 60

Answers

Answer:

The answer is C. 60-6m.

Which expressions are equivalent to the expression 30x^2-5x-10

Answers

Answer:

10 (3 x - 1)

Step-by-step explanation:

Answer:

6 is equivalent as well as option 3

A drag racer has two parachutes, a main and a backup, that are designed to bring the vehicle to a stop (combined with the brakes) after the end of a run. Suppose that the main chute deploys with probability 0 . 95, and that if the main fails to deploy, the backup deploys with probability 0.999.

Required:
a. What is the probability that one of the two parachutes deploys?
b. What is the probability that the backup parachutes deploys?

Answers

Answer:

a. 0.99995 = 99.995% probability that one of the two parachutes deploys

b.0.04995 = 4.995% probability that the backup parachutes deploys

Step-by-step explanation:

a. What is the probability that one of the two parachutes deploys?

Either the first deploys(with probability 95%), or the first does not deploy(probability 5%) and the second does(probability 99.9%). So

[tex]p = 0.95 + 0.05*0.999 = 0.99995[/tex]

0.99995 = 99.995% probability that one of the two parachutes deploys

b. What is the probability that the backup parachutes deploys?

The first does not deploy(probability 5%) and the second does(probability 99.9%). So

[tex]p = 0.05*0.999 = 0.04995[/tex]

0.04995 = 4.995% probability that the backup parachutes deploys

Find the values of x and y.

Answers

Answer:

x = 20 (degrees)

y = 70 (degrees)

Step-by-step explanation:

The angle adjacent to the one labeled 40° is supplementary, so it would measure 140°. And the obtuse triangle is an isosceles, which means that x is half of 180° - 140°, so x = 1/2(40°) = 20°

To find y, subtract 90° and x from 180°

y = 180° - 90° - 20°

y = 70°

Answer:

x = 20 and y = 70

Step-by-step explanation:

x = 20 and y = 70

Help me please! I am in desperate need

Answers

Answer:

C. The coefficients of [tex]x^ay^b[/tex] and [tex]x^by^a[/tex] are equal.

Step-by-step explanation:

The binomial theorem is given as:

[tex](x+y)^n=\sum_{k=0}^{n} \binom{n}{k}x^{n-k}y^k[/tex]

[tex]n-k+k=n[/tex], and the coefficient of these terms are represented by [tex]\binom{n}{k}[/tex].

*Note [tex]\binom{n}{k}=\binom{n}{n-k}=\frac{n!}{k!(n-k)!}[/tex]

Therefore the coefficients of [tex]x^ay^b[/tex] and [tex]x^by^a[/tex] are equal.

How to Simplify (7x+2)+(x+8)-2x

Answers

Answer:

Step-by-step explanation:

The answer to this should be 2(3x+5)

The simplified answer of this is 6x+10

I hope I helped you out.

Answer:

P: ()

E: 5^4 (example)

M:x

D: ÷

A:+

S:-

Estimate with percents

Estimate each percent

50% of 39

Answers

Answer:

Step-by-step explanation:

50 percent of 39=

39/2=19.50

39 rounds to 40 , 40/2 = 20

Consider the following pieces of identification a person might have in order to apply for a credit card:

B : Applicant present a birth certificate
D: Applicant presents a drivers license
M applicant presents a marriage license

Write Logical expressions

1. The applicant must present either a birth certificate, a drivers license or a marriage license.
2. The applicant must present any two of the following forms of identification: birth certificate, drivers license, marriage license
3. Applicant must present either a birth certificate or both a drivers license and a marriage license

Answers

Answer:

B v D v M ;

(B ٨ M) V (B ٨ D) V (M ٨ D) ;

B V (D ٨ M)

Step-by-step explanation:

Given :

B : Applicant present a birth certificate

D: Applicant presents a drivers license

M applicant presents a marriage license

1.)

This means that any one of the three must be presented :

Birth certificate OR Driver's license OR Marriage certificate

B v D v M

2.)

This means any two combination of the three certificates :

(birth certificate and marriage certificate) OR (birth certificate and driver's license) OR (marriage certificate and driver's license)

(B ٨ M) V (B ٨ D) V (M ٨ D)

3.)

That is birth certificate alone will suffice or a driver's incense and a marriage certificate

B V (D ٨ M)

What is the distance between -60 and -10 on
a number line?
units
90-80 -70 -60 -50-40-30-20 - 10
0
10

Answers

Answer:

50

Step-by-step explanation:

60-10

6
x

5
y
=
14

Find
x
when
y
=
2

Answers

Answer:

4

Step-by-step explanation:

Pls help extra points and mark brainlist easy reading

Answers

Answer: Its they second or last one but the second one sound more clear

Step-by-step explanation:

In an hyperbola, the fixed points that have a constant difference in distance from the center are called _

A. Asymptotes
B. Centers
C. Foci
D. Vertices

Please select the best answer from the choices provided

OA
OB
OC
OD

Answers

Answer is C. Foci...

The correct answer is C. Foci.

A hyperbola is defined as the flat open curve resulting from the intersection of a right circular cone from a plane not parallel to any of its origins. The line joining the foci of the hyperbola is called the base line.

The perpendicular to the middle of the baseline is called the center line. It becomes apparent that all points of the center line are equidistant from the foci.

Learn more in https://brainly.com/question/15697124

EASY WORK!!! Please look at the picture and yes it’s easy for other people but not for me .

Answers

Answer:

#8 --->      1/4  2/5  1/2  3/5  

#9 --->      6 3/8    6 1/2   6 3/4   6 5/6

#10 --->    1.75 feet is the longest

the other lengths are 1.58 ft. and 1.67 ft.

Step-by-step explanation:

good luck!

it's easy if you turn them into decimals.

to do that, you just divide the numerator (top number) by the denominator (bottom number).

e.i.   1/4= .25  (25%)

       1/2= .5   (50%)

       3/5= .6    (60%)

Answer:

8. 1/4, 2/5, 1/2, 3/5

9. 6 3/8, 6 1/2, 6 3/4, 6 5/6

10. the length of the longest bar is 1.75 feet

Step-by-step explanation:

(just convert all the fractions to decimal, it will be easier for you to do!)

8.

3/5 = 0.6

1/4 = 0.25

1/2 = 0.5

2/5 = 0.4

9.

6 3/4 = 6.75

6 1/2 = 6.5

6 5/6 = 6.83

6 3/8 = 6.375

10.

1 7/12 = 1.583

1 2/3 = 1.6 or 1.7

I will give brainiest to whoever answers correctly !!

Answers

Answer:

the material when you get a chance can you send me the material

Solve using the Quadratic Formula:

3x2−12x−9=0

Answers

Answer:

x²+x-1=0

3x²-12x-9=0

Undefined



Mary, Hans, and Alan have a total of $54 in their wallets. Mary has $10 more than Hans. Alan has 2 times what Mary has. How much do they have in their
wallets

Answers

Answer: $95

Step-by-step explanation:

Let's say Maria is M, Hans is H and Alan is A.  Maria has M amount of money.  If Hans has 10 more than Maria, he has M+10.  If Alan has 3 times what Hans has and Hans has (M+10), then Alan has 3(M+10) which is 3M+30.  Altogether they have 95 dollars.  So we will add up what they have and set it equal to 95.  M+10+M+30+3M=95.  That simplifies to 5M+40=95 and 5M=55.  Therefore, Maria has 11 dollars.  Hans has 10+11=21, and Alan has 3(21)=63.  11+21+63=95

Select all of the following tables which represent y as a function of x.

Answers

Answer:

the second and third one

Step-by-step explanation:

two y's that are the same can't have 2 outcomes

Please help I might flunk

Answers

let x represent the price of gold
x + 1.5 week 1
x + 1.5 - 3.375 = x - 1.875 week 2
x - 1.875 + .625 = x - 1.25 week 3
x - 1.25 + 1.5 = x + .25 Week four
the price of gold went up 25 cents in four weeks total

Other Questions
A period in history in which human transitioned from human power, animal power and hand made goods to fissile fuel power, hydro/hydroelectric power and machine produced goods.A. The industrial revolution B. The agriculture revolution C. The medical revolution D. The American revolution use a number line to show the following operations (a) -5+7-2 (b) -43 (c) 3.5+4.5 Someone help Im LAAAAZYYYY Marcos owns and operates a shuttle service that runs every hour and transports customers between their hotels and the city's downtown area. Let X represent the number of customers on a randomly chosen trip. Based on previous data, here is the probability distribution of X along with summary statistics: X = # of customers 0 1 2 3P(X) 0.10 0.20 0.30 0.40 Mean: x = 2 Standard deviation: x = 1 Suppose that each trip costs Marcos $1 in fuel regardless of how many customers he has, and each customer on a trip pays him $10. Let Y represent Marcos' net gain from a randomly chosen trip. What are the mean and standard deviation of Y? Planet Beta has two times a gravitational field strength and two times the mass of the Earth. How does the radius of planet beta compared with the radius of Earth how to respond to Como se dice hello en Espaol A __ fault generally occurs at a transform boundary What is the atomic number of silicon do you think wars of independence were necessary in latin america? why? Can someone please helpWhat are the advantages of asexual reproduction? Someone pls help me solve this Im having really bad anxiety! Find the points at which the function f(x)=x^2/3 has a maximum or minimum or a minimum value in the interval [-1,2]. What does it mean to read laterally? Provide an explanation in your own words. What's 10.08 rounded to the nearest one? Which statement best explains the relationship between the gothic genre and the characterization in the passage? We have warned them from time to time of attempts by their legislature to extend an unwarrantable jurisdiction over us. We have reminded them of the circumstances of our emigration and settlement here. We have appealed to their native justice and magnanimity, and we have conjured them by the ties of our common kindred to disavow these usurpations,which of these rhetorical devices is most clearly used here ethoskairosinductive reasoningparallelism 10 pointsOne of Earth's characteristics is that it experiences seasons. Highertemperatures result in summer and lower temperatures result in winter.Why does the Earth experience seasons? *A. Temperatures on Earth vary from one location to another, causing seasons.B. Cloud cover is heavier in the winter, blocking radiation from the Sun and creatingseasonsC. As Earth revolves around the Sun, the hemisphere that is tilted toward the Sunreceives more direct sunlight, causing seasonsD. Earth's orbit around the Sun is elliptical, and Earth is farther from the Sun in winter,resulting in seasonsNas 5. (0,0) and (-2,-8) Slope=_ Equation= help Math 39 points Asap Probability image below Why do scientist use the scientific method