help plz thx soo much ​

Answer:

1.66

Step-by-step explanation:

The mean of a set of data is 4.68 and its standard deviation is 2.83. Find the z score for a value of 9.38

Given that :

Mean (m) = 4.68

Standard deviation (s) = 2.83

Value of x = 9.38

Zscore = (x - mean) / standard deviation

Zscore = (9.38 - 4.68) / 2.83

Zscore = 4.7 / 2.83

Zscore = 1.6607773

Hence, Zscore for a value of 9.38 is 1.66

Answer:

Im a little confused what this question is asking, but the number in billions is simply 89.61416 if the original number is in thousands! Hope that helps and if that was not what you were looking for, let me know. :)

Step-by-step explanation:

Answer:

It is estimated that the population of the world reached one billion for the first time in 1804. It was another 123 years before it reached two billion in 1927, but it took only 33 years to rise by another billion people, reaching three billion in 1960.

Answer:

for the first one its C,D and E

but for the second one i dont

know so sorry

Step-by-step explanation:

Answer:

Cheerleader :))

Step-by-step explanation:

this is the working

The answer will be one and three eighth cups

Step-by-step explanation:

hope this helps

Answer:

c. 30x+80y-15z.

Step-by-step explanation:

Answer:

CCCCCCCCCCCC

Step-by-step explanation:

Answer:

The answer is 2

Step-by-step explanation:

Edge 2021

Answer:

6/3 or 2?

Step-by-step explanation:

i am not completely sure though. I went purely based off of MN/RS, which gave me the ratio 6/3. That also equals 2.

Answer:

(1)   <

(2)  <

(3)   =

(4)   <

Step-by-step explanation:

[tex]By \ applying \ the \ rule \ of \ BODMAS \ (i.e. \ Bracket, \ of, \ Division,\ Multiplication, \ Addition,[/tex][tex]\ and \ Subtraction).[/tex]

(1)

5 + 8 - 2 -7 = 13 × 10 - 17

13 - 9 = 130 - 17

4 < 113

(2)

22 × 3 - 42 + 20 = 72 -2 + 13 - 16

66 - 22 = 72 + 11 - 16

44 < 67

(3)

12 + 13 - 4 × 5 = 4 × 3 - 7

12 + 13 - 20 = 12 - 7

5 = 5

(4)

45 - 10 × 2 + 17 = 8 ×9 - 5 + 30

45 - 20 + 17 = 72 + 25

42 < 97

Answer:

48 ways

Step-by-step explanation:

Given

[tex]Girls = \{Ava, Cara, Emma, Lily, Mia\}[/tex]

[tex]Together= \{Emma, Lily\}[/tex]

Required

Determine the number of sitting arrangements

The number of girls are 5, of which 2 must be seated together.

First, Emma and Lily can be arranged in 2! ways

Next, we consider Emma and Lily as one, so there are (5 - 1) girls left to be arranged.

This can be done in (5 - 1)! ways

Total number of ways is then calculated as:

[tex]Ways = 2! * (5 - 1)![/tex]

[tex]Ways = 2! * 4![/tex]

[tex]Ways = 2 * 1 * 4 * 3 *2 * 1[/tex]

[tex]Ways = 48[/tex]

Hence, there are 48 ways

The possible ways in which Ava, Cara, Emma, Lily, and Mia are to be seated together in a row, while Emma and Lily sit next to each other are 48 ways.

Given to us;

Number of girls = {Ava, Cara, Emma, Lily, and Mia} = 5 girls,

Also, Emma and Lily must sit next to each other, therefore, considering them as a single person,

The choices we are left with = {Ava, Cara, Mia, (Emma, Lily)} = 4 person;

We know to calculate the number of ways people can sit is given by n! (n factorial), where n is the number of person. Thus,

different ways this 4 person can sit = n!

                                                           = 4!

                                                           = 4 x 3 x 2 x 1

                                                           = 24 ways

Further, as given in the question Emma and Lilly must sit together but they can change sits within themselves, So,

different ways Emma and Lilly can sit = n!

                                                              = 2!

                                                              = 2 x 1

                                                              = 2 ways

Therefore, the total number of ways all 5 girls can sit together in which Emma and Lilly will be always seated together,

Total ways all can sit together = 24 x 2

                                                  = 48 ways

Hence, the possible ways in which Ava, Cara, Emma, Lily, and Mia are to be seated together in a row, while Emma and Lily sit next to each other are 48 ways.

To know more visit:

https://brainly.com/question/13003667

Answer:

First question: 1.4

Second question: Option 3

Step-by-step explanation:

First question:

You simplify the left equation first,

-0.4 x -3.5 = 1.4 , -0.4 x 2.9 = -1.16

1.4k - 1.16

For this to equal the right equation, the number missing must be 1.4.

Second question:

You simplify the equation given to you first,

1/4 x 8 = 2 , 1/4 x 12 = 3

2x + 3

The option that is equivalent to the answer is option 3; 2x + 3

Answer:

Step-by-Use the drop-down menus to label the points on the number line.

Point A is at . - 1 2/4

Point B is at . - 3/4

Point C is at 3/4.    

Point D is at  explanation:1 3/4

The position of the points A, B, C, and D on the number line will be –3/2, –3/4, 3/4, and 7/4.

Coordinate geometry is the study of geometry using the points in space.

The number line is shown below.

From the figure, we can observe that there are 4 sections between each successive numbers.

The point A is at –1 2/4 that is –3/2.

The point B is at –3/4.

Then the point C is at 3/4.

And the point D is at 1 3/4 that is 7/4.

More about the coordinate geometry link is given below.

https://brainly.com/question/1601567

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Answer:

[tex] \huge \: 8 {x}^{3} \times 3 {x}^{9} = 24 {x}^{12} [/tex]

===================================================

Explanation:

For any triangle, the interior angles always add to 180

(angle1)+(angle2)+(angle3) = 180

(w) + (4w-6) + (w) = 180

(w+4w+w) - 6 = 180

6w - 6 = 180

6w - 6+6 = 180+6 .... adding 6 to both sides

6w = 186

6w/6 = 186/6 ..... divide both sides by 6

w = 31

------------------------------------

Extra info:

This value of w leads to

4w-6 = 4*31-6 = 118

The three angles of the triangle are: 31, 118, 31

Because we have two congruent angles, this means the triangle is isosceles. The sides opposite the congruent angles are the same length.

Step-by-step explanation:

Triangles ABC and DEF are congruent.

The letter B is the 2nd letter in 'ABC'.

Likewise, the letter E is the 2nd letter in 'DEF'.

Therefore Angle B = Angle E.

Answer:

y=-4x+5...

Step-by-step explanation:

y=-4x+5...

Answer:

64

Step-by-step explanation:

4a(3b+5)+2b

Substitution

4(6)[3(7)+5]+2(7)

Order of operations (PEMDAS)

4(6)[21+5]+2(7)

4(6)+26+2(7)

24+26+14

50+14

64

Hope this helps. Have a nice day. May it be filled with joy and happiness. Please, be safe and wash your hands. Happy Holidays.

Answer:

im so srry 25 im not sure

Step-by-step explanation:

i need points :(

How many plates can be made if repetition of leters and digits is allowed? 26*26*10*10=67,600 plates can be made.

this is what i looked up and got sry if its not

Answer:

[tex]y=-45[/tex]

Step-by-step explanation:

[tex]\frac{y}{9}+5=0[/tex]

[tex]\frac{y}{9}=-5[/tex]

[tex]y=-45[/tex]

Answer:

b

Step-by-step explanation:

dbhdkcnsbnadjfmmfejsdbfjkgkf

Answer:

You look very nice!

Step-by-step explanation:

it matters what you look like to yourself not how you look to others!

Answer:

Step-by-step explanation:

Answer:

Scott will take 221 minutes to run 52 km

Step-by-step explanation:

Speed

The speed of an object can be calculated with the formula:

[tex]\displaystyle v=\frac{d}{t}[/tex]

Where d is the distance traveled and t is the time taken.

Scott can run d=20 km in 85 minutes. Thus, his speed is:

[tex]\displaystyle v=\frac{20}{85}\ km/min[/tex]

Now he wants to know how many minutes it will take him to run d=52 km. Solving the formula for t:

[tex]\displaystyle t=\frac{d}{v}[/tex]

Since the speed has been already determined:

[tex]\displaystyle t=\frac{52}{\frac{20}{85}}[/tex]

Multiplying by the reciprocal of the denominator:

[tex]\displaystyle t=52*\frac{85}{20}[/tex]

t = 221 min

Scott will take 221 minutes to run 52 km

Answer:

221 min

Step-by-step explanation:

eligible on khan academy

Answer:

when x is 1 y is 7

when x is 2 y is 10

when x is 3 y is 13

Step-by-step explanation:

Answer:

5/4 = rational   √100 = rational 7.3 =rational 0.00247 = rational √4/9 = irrational √2/24 = irrational 0.01 (with the line) = irrational

Step-by-step explanation:

an irrational number is an infinitely repeating number that can not be written as a fraction, instead it must be written as a decimal. A rational number is a number that can be made by dividing two integers (an integer is a number with no fractional part).

The numbers are,

a. 5/4 = Rational

b. √100 = Rational

c. 7.3 = Rational

d. 0.00247  = Rational

e. √4/9  = Irrational

f. √2/24  = Irrational

g. 0.01 (with the line above the 1) = Irrational

What is Number system?

A system of writing to express the number is called number system.

Given that;

The numbers are,

5/4, √100 , 7.3 , 0.00247, √4/9 , √2/24 , 0.01 with the line above the 1.

Now,

Check the numbers as;

5/4  = 1.25

So, The number is a Rational number.

√100 = 10

So, The number is a Rational number.

7.3 = 7.3

So, The number is a Rational number.

0.00247 = 247/100000

So, The number is a Rational number.

√4/9 = 2/3 = 0.666.......

So, The number is a Irrational number.

√2/24

So, The number is a Irrational number.

0.01 with the line above the 1

So, The number is a Irrational number.

Thus, The numbers are,

a. 5/4 = Rational

b. √100 = Rational

c. 7.3 = Rational

d. 0.00247  = Rational

e. √4/9  = Rational

f. √2/24  = Irrational

g. 0.01 (with the line above the 1) = Irrational

Learn more about the Rational number visit:

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Answer:

The first one x=5, y-3

Step-by-step explanation:

Answer:

X = 50

Step-by-step explanation:

2x-x = 40 + 10

X =50

Take the x to be on the same sides and the normal numbers in the other side. Then work them out.

Answer:

the first on is greater

Step-by-step explanation:

please trust me