i need help with this!

I Need Help With This!

Answers

Answer 1

9514 1404 393

Answer:

  64.6

Step-by-step explanation:

One standard deviation is 4.3. Then +2 standard deviations is ...

  (+2)(4.3) = +8.6

This amount added to the mean gives ...

  56 +8.6 = 64.6 . . . . +2σ from the mean


Related Questions


it says 10^-4
please help give brainliest

Answers

Answer:

jane is correct

Step-by-step explanation:

10⁻⁴ can be written as [tex]\frac{1}{10000}[/tex] and as 0.0001

I need help with this problem

Answers

Answer:

x = 9 , jk = 42 , kl= 78

Step-by-step explanation:

Explained in the paper.

Goodluck

Answer:

x = 9

Step-by-step explanation:

[tex](4x+6)+(7x+15)=120[/tex]

[tex](4(9)+6)+(7(9)+15)=120[/tex]

[tex](36+6) + (63+15)=120[/tex]

[tex](42)+(78)=120[/tex]

x = 9

JL = 42

KL = 78

if (-1,4) and (3,-2) are end points of diameter of the circle, then the equation of the circle is

Answers

Answer:

If you've more doubts you can ask :)

Step-by-step explanation:

If the centre of a circle is (a, b) and radius r, then the equation of the circle is :

[tex](x - x)^2 + (y-b)^2 = r^2[/tex]

First we will find the centre, (a , b):

[tex]a = \frac{3+(-1)}{2} = \frac{2}{2} = 1\\\\b = \frac{-2 + 4}{2} = \frac{2}{2} = 1[/tex]

Find radius:

[tex]Radius, r = \frac{Diameter}{2}[/tex]

Diameter is the distance between (-1, 4) and (3, -2)

[tex]diameter = \sqrt{(x_2 - x_1)^2 +(y_2-y_1)^2} \\\\[/tex]

             [tex]= \sqrt{(3-(-1)^2 + (-2-4)^2} \\\\=\sqrt{16 + 36}\\\\=\sqrt{52}\\\\=\sqrt{4 \times 13}\\\\=2\sqrt{13} \ units[/tex]

Therefore , [tex]r = \frac{2 \times \sqrt{13} }{2} = \sqrt{13} \ units[/tex]

Equation of the circle is :  

                                 [tex](x - 1)^2 +(y-1)^2 = 13[/tex]

Factor over the complex numbers, if possible: x² + 2xyi - y2

What is the answer?

Answers

9514 1404 393

Answer:

  (x +yi)²

Step-by-step explanation:

Comparing the given expression to the square of a binomial, we can determine the given expression to be a square.

  (a +b)² = a² +2ab +b²

Here, we have a=x and b=yi. Then the factorization is ...

  x² +2xyi +(yi)² = (x +yi)²

The model below represents the sum of two mixed numbers.
Write an equation that shows the sum represented by the model.
Show your work.

Answers

Answer:

hey I am not sure about the answer but I guess this is the right answer:

(x+3)+x

what is 3/5 minus 5/11

Answers

Answer:

0.14545454545 Maybe

Step-by-step explanation:

Answer:

8/55

Step-by-step explanation:

The first thing you need to do is find a common denomintor.

The first denominator is 5, the other is 11.

If you multiply these together, you will get 55. This can not be reduced and still be divisable by 5 and 11, so this is your new denominator.

So for the 3/5 multiply both top and bottom by 11, since thats how many times bigger the denominatir needs to be:

3*11/5*11= 33/55

Then for 5/11 multiply both top and bottom by 5, since thats how many times bigger the denomator is to make 55:

5*5/11*5=25/55

Now we have:

33/55-25/55

When subtracting fractions, you are only subtracting the two numerators, and the denominators are unaffected:

33-25/55=8/55

So 8/55 is your answer.

Hope this helps!

Choose each number that shows 4% as an equivalent fraction, decimal, or percent. Select all that apply.

Answers

Answer:

1/4

Step-by-step explanation:

4 divide in half so should be 1/4

Here are Barry Bonds's home-run totals, mostly for the San Francisco Giants,
during the years 1991 - 2005:
25, 34, 46, 37, 33, 42, 40, 37, 34, 49, 73, 46, 45, 45, 5
There are two outliers at opposite ends of this distribution: his 5 home runs in
2005 and his 73 home runs in 2001. Which of the following is a modified box
plot for this distribution?
A.
B.
C..
E.

Answers

The modified boxplot created for the distribution is boxplot E

Given the values :

25, 34, 46, 37, 33, 42, 40, 37, 34, 49, 73, 46, 45, 45, 5

The outliers in the values are : 5 and 73

Hence, the modified values are :

25, 34, 46, 37, 33, 42, 40, 37, 34, 49 , 46, 45, 45

Using a boxplot maker or excel, we could use the modified data to create a boxplot with the following properties as obtained from the boxplot shown below :

Median value = 40

Minimum = 25

Maximum =  49

First quartile = 34

Third quartile = 45.5

The modified boxplot has no outlier and it corresponds with the boxplot in option E

Learn more : https://brainly.com/question/1523909

Answer:

graph C

Step-by-step explanation:

How do you find the square root of 11? I need to show work

Answers

Answer:3.31662479036.

Step-by-step explanation:To find the square root of 11, use the long division method to get the approximate value. Therefore, √11 = 3.31662479036. Register at BYJU'S to learn other interesting mathematical concepts.

What’s the function of f(x)=-2/3x -7 ?

Answers

Answer:

F(x) = -1/3 x^2 - 7x + C

find the perfect square
-6x=3x^2+9

Answers

Answer:

[tex] - 6x = 3 {x}^{2} + 9 \\ 3 {x}^{2} + 6x + 9 = 0 \\ {x}^{2} + 2x + 3 = 0 \\ so \\ ether \: x = - 2 \\ or \: x = 1 [/tex]

I’ll pay anyone to do my 7 math assignments(no scams no bs) Hmu asap

A cardiologist is interested in the average recovery period for her patients who have had heart attacks. Match the vocabulary word with its corresponding example.



-

The average recovery time for all heart attack patients that the cardiologist has or will treat


-

All heart attack patients that the cardiologist has cared for or will care for in the future


-

The average recovery time for the 32 heart attack patients


-

The 32 heart attack patients who were observed by the cardiologist


-

The list of all 32 heart attack patients' recovery times


-

The recovery time for a heart attack patient

Answers

Answer: See explanation

Step-by-step explanation:

1. The average recovery time for all heart attack patients that the cardiologist has or will treat. = Parameter

2. All heart attack patients that the cardiologist has cared for or will care for in the future = Population.

3. The average recovery time for the 32 heart attack patients = Statistics

4. The 32 heart attack patients who were observed by the cardiologist = Sample

5. The list of all 32 heart attack patients' recovery times = Data

6. The recovery time for a heart attack patient. = Variable

please help this is due today! geometry

Find the distance between the points (4.3) and (0, 3).

Answers

Please mark brainliest

Answer is 4 units

Explanation:

See the image as mathematical signs can’t be written here

What is length of DF?

Answers

Answer:

DF = 11

Step-by-step explanation:

From the question given above, the following data were obtained:

EH = 8

HG = 3

EF = DG

DF =?

Since, EF = DG, it also means that EG = DF.

Next we shall determine EG. This can be obtained as follow:

EG = EH + HG

EH = 8

HG = 3

EG = 8 + 3

EG = 11

Finally, we shall determine EF. This is illustrated below:

EG = DF

EG = 11

DF =?

11 = DF

Therefore,

DF = 11

how to set this up to solve​

Answers

Answer:

use the arthmetic mean

Step-by-step explanation:

See the image for question :)

Answers

Answer:

it is simple just compare the ratios simple as that

but I will need to know all the formula s

Let’s Say I Left The House At 11:32 And Then I Came Back At 1:42, How Many Hours Have I Been Gone.

Example: 1hours and 20min

Just an example not the answer ^

Answers

i think the correct answer is 2 hours and 10 mins

cos90degrees cos30 degrees + sec-squared45degrees sin30degrees - cos270degrees sin180degrees

Answers

Step-by-step explanation:

[tex]\cos 90 \cos 30 + \sec^2 45 \sin 30 - \cos 270 \sin 180[/tex]

But we know that

[tex]\cos 90 = \cos 270 = \sin 180 = 0[/tex]

and

[tex]\sin 30 = \dfrac{\sqrt{3}}{2} \:\:\text{and}\:\: \sec 45 = \sqrt{2}[/tex]

so this leaves us with just

[tex]\sec^2 45 \sin 30 = (\sqrt{2})^2 \left(\dfrac{\sqrt{3}}{2} \right)= \sqrt{3}[/tex]

The two given figures are similar. Which statements must be true? Select all that apply.

Answers

Answer:

angle B=74°

Step-by-step explanation:

the shapes are similar

Select all the possible names for the following angle

Answers

Answer:

The answers are options d and e

Deshaun has scored 86, 83, 93, and 79 on her previous four tests. What score does he need on his next test so that his average (mean) is 86?​

Answers

Answer:

89

Step-by-step explanation:

341 ( total of previous 4 tests)   + 89= 430  

Divide 430 by 5 ( number of tests)

A store manager can spend at most $1,000 a day for operating costs and payroll. It costs $100 each day to operate the store and $30 dollars a day for each employee. Use the following inequality to determine how many employees the manager can afford for the day, at MOST.


30x + 100 < 1000


A. X > 30

B. X > 33

C. X < 33

D. X < 30

Answers

Answer:

x < 30

Step-by-step explanation:

Given the inequality expression that denotes the statement as;

30x+100 < 1000

Subtract 100 from both sides

30x + 100 - 100 <1000 - 100

30x < 900

Divide both sides by 30

30x/30 < 900/30

x < 30

Hence the required solution is x < 30

The number of employee the manager can afford a day is x < 30.

The given parameters:

Amount spent a day for operating cost = $1,000The operating cost of the store, = $100 per dayAmount paid to the employee = $30 per day

The inequality of the number of employee the manager can afford a day is calculated as follows;

30x + 100 < 1000

collect similar terms together;

30x < 1000 - 100

30x < 900

divide both sides of the equation by 30;

[tex]x <\frac{900}{30} \\\\x <30[/tex]

Thus, the number of employee the manager can afford a day is x < 30.

Learn more about solution to inequality here: https://brainly.com/question/24372553

The population of a town grows at a rate proportional to the population present at time t. The initial population of 500 increases by 10% in 10 years. What will be the population in 20 years? (Round your answer to the nearest person.)
510

Incorrect: Your answer is incorrect.
persons
How fast (in persons/yr) is the population growing at
t = 20?
(Round your answer to two decimal places.)
persons/yr

Answers

Answer:

The right answer is "605 persons".

Step-by-step explanation:

Given that,

⇒ [tex]\frac{dP}{dt} \alpha P[/tex]

or,

⇒ [tex]\frac{dP}{dt} =RP[/tex]

⇒ [tex]\frac{1}{R} \int\limits^{PT}_{500} {\frac{dP}{P} } = \int\limits^{t}_{0} dt[/tex]

⇒ [tex]\frac{1}{R} [log PT-log500]=t[/tex]

⇒                  [tex]log[\frac{PT}{500} ]=Rt[/tex]

At t = 10 years,

⇒ [tex]PT=\frac{110}{100}\times 500[/tex]

          [tex]=550[/tex]

∴ [tex]log[\frac{550}{500} ]=R\times 10[/tex]

            [tex]R=\frac{log(1.1)}{10}[/tex]

At t = 20,

⇒ [tex]log{\frac{PT}{500} }=\frac{log \ 1.1}{10}\times 20[/tex]

        [tex]PT=500\times (1.1)^2[/tex]

              [tex]=605 \ persons[/tex]

Given: g(x) = x - 4 and h(x) = 2x - 8. What is g(h(1011?​

Answers

Answer:

[tex]g(h(1011)) = 2010[/tex]

Step-by-step explanation:

Given

[tex]g(x) = x - 4[/tex]

[tex]h(x) =2x - 8[/tex]

Required

[tex]g(h(1011)[/tex]

First, we calculate [tex]g(h(x))[/tex]

[tex]g(x) = x - 4[/tex]

Substitute h(x) for x

[tex]g(h(x)) = h(x) -4[/tex]

Substitute [tex]h(x) =2x - 8[/tex]

[tex]g(h(x)) = 2x - 8 -4[/tex]

[tex]g(h(x)) = 2x -12[/tex]

Substitute 1011 for x

[tex]g(h(1011)) = 2*1011 -12[/tex]

[tex]g(h(1011)) = 2022 -12[/tex]

[tex]g(h(1011)) = 2010[/tex]

Answer:

6

Step-by-step explanation:

just did it on egde 2021

please help !!! urgent ☹️

Answers

Answer:

20/8

=2.5

14×2.5=35

[tex] \frac{20}{8} = \frac{x}{14} \\ x = \frac{20 \times 14}{8} \\ x = \frac{280}{8} \\ x = 35[/tex]

The distance from Nairobi, Kenya to Pretoria, South Africa is 3,969 kilometers. The distance from Cairo, Egypt to Tunis, Tunisia is 2,811 kilometers. Estimate the difference between these two distances by first rounding to the nearest hundred. i need help pleasee

Answers

Answer:

Step-by-step explanation:

3,969 = 4,000 rounded to nearest hundred

2,811=3,000 rounded to nearest hundred

therefore... the difference is 4,000 - 3,000 = 1,000 kilometers

Answer:1,100

Step-by-step explanation:

rounding 3,969 to the nearest hundreds is 4,000 and rounding 2811 to the nearest hundred is 2900. Now you subtract 4000-2900 = 1100.

Only answer if you're very good at Math.

Given f (x) = x + 1 and g(x) = x^2, what is
( g o f) (x)?

A: ( g o f) (x) = x^2 + 1

B: ( g o f) (x) = (x + 1)^2

C: ( g o f) (x) = x ^ 2 + x + 1

D: ( g o f) (x) = x^2 (x + 1)

Answers

Answer:

Solution given:

f(x) = x +1 and g(x) = x²,

now

(gºf)(x) =g(fx)=g(x+1)=(x+1)²

B) (gºf)(x) = (x + 1)^2

3. It refers to the number of values an interval may contain
a. class interval
c. frequency
b. class width
d. range​

Answers

Answer:

An interval scale is one where there is order and the difference between two values is meaningful. Examples of interval variables include: temperature (Farenheit), temperature (Celcius), pH, SAT score (200-800), credit score (300-850).

Step-by-step explanation:

thank me later

PLEASE HELP!!!! WHOEVER GETS IT RIGHT GETS BRAINLIEST !!!!

FIND THE VALUE OF X

Answers

Answer:16 degree is the answer.

Since r and m are parallel:

10x-3=7x+45

3x=48

x=16

simplify the expression
7y − (6)2y − 12

Answers

Answer:

-5y-12

Step-by-step explanation:

Multiply 6 into 2y

7y-12y-12

-5y-12

He’s right the guy on top
Other Questions
Look at the karyotype. Which chromosome has an extra copy?A. 2B. 20C. 18 Mrs. Allen baked 9 pies. She sliced each pie into pieces that are 1/5 of a whole. How many pieces of pie does she have?thx Morning Donuts tracked how many of each type of donut were recently sold.jelly-filled donuts3cake donuts2cream-filled donuts5What is the experimental probability that the next donut sold will be a cake donut?Write your answer as a fraction or whole number.P(cake donut) = Which universal theme is best represented in the excerpt? ir Children make sacrifices for their parents. Women can be capable leaders. Morality outweighs human laws. Parents make sacrifices for their children. Magna Lighting Inc. produces and sells lighting fixtures. An entry light has a total cost of $125 per unit, of which $80 is product cost and $45 is selling and administrative expenses. In addition, the total cost of $125 is made up of $90 variable cost and $35 fixed cost. The desired profit is $55 per unit. Determine the markup percentage on product cost. At a pet store, Ms. Pike paid $34.75 for 5 dog bowls and 7 bones. Mr. Moore paid $20.50 for 3 dog bowls and 4 bones. Determine the cost of one dog bowl(x) and one bone(y). .For small training sets variance may contribute more to the overall error than bias. Sometimes this is handled by reducing the complexity of the model, even if the model is too simple. Why do you suppose this is the case Heyy could you guys help me Im stuck. hey what's the answer[tex] - 11a(3a + 2a)[/tex] Describe any six risky situations youth are frequently exposed to At 11:30 a.m. the bottle is 1/4 of the way full. At what time will the bottle be 1/2 full? 3.The volume occupied by one mole of an ideal gas at 273K and 1.01x10% Pa is 22.4 dm'mol".What volume of hydrogen, in dm", is produced when excess magnesium ribbon reacts with 100 cm?of 2.00 mol dm hydrochloric acid?Mg(s) + 2HCl(aq) MgCl, (aq) + H2(g)A.0.100B.2.24C.4.48D.22.4 was the expression a^2-b^2 = (a+b)(a-b) invented or discovered? Ella Answer una blusa y unas botas. (comprar) Assuming no other changes, what is the effect of doubling only the concentration of the alkyl halide in the above SN2 reaction?A) no change B) triples the rate C) rate is halved D) doubles the rate E) quadruples the rate TWO ways in which the school prepares young persons to undertake the economic functions of the family I NEED AN ANSWER RN PLEASE! WILL GOVE BRAINLIEST NEED QUICK!!If r = "3 and m =80, what is the value of m - 4r: (r + 1)?O A. 17O B. 74O C. 114O D. 152 is chewing on ice really bad for you ?? What characteristics of the blood cell helps it to pass freely through blood capillaries Adding and subtracting polynomials