Find the standard deviation for the set of data. {25, 4, 15, 19, 20, 18,7, 21, 24}
A. 6.39
B. 6.31
c. 7.09
D. 6.8

Answer:

-2

Step-by-step explanation:

Step-by-step explanation:

a×10⁰×a

Since, m⁰=1 therefore

a×1×a

a²

a × 10⁰ × a = a × 1 × a = a × a = a²

Answer:

yea I cant really do this over a screen

Answer:

16) photo

Step-by-step explanation:

- parallel lines never meet (a, b, c have no points in common)

- perpendicular lines meet other lines at one point, forming two angles of 90 °

Answer: slope = 4/3

Step-by-step explanation:

(24-12)/(6- -3)

= 12/9

= 4/3

Answer:

If your shape is a regular polygon (such as a square in the example above) then it is only necessary to measure one side as, by definition, the other sides of a regular polygon are the same length. It is common to use tick marks to show that all sides are an equal length.

Step-by-step explanation:

Hope it helps love form india server

Answer:

they usually have double line on top of the lines of the shapes. for example square they have all the same lenght so they have double line signs on top of them

i hope this help. good luck

Answer:

Wouldn't be 100% since all the numbers on a standard number cube are less than 7?

Step-by-step explanation:

Answer:

2(x+1)

Step-by-step explanation:

I think it's work.

Answer:

2 hours and 47 minutes.

Step-by-step explanation:

If it makes it easier then translate it to normal time.

10:45 pm and 1:32 am.

2 hrs and 47 minutes.

Answer:

2 hours and 47 minutes is the duration of the movie.

Step-by-step explanation:

I have calculated it :-)

Answer:

Area =(x+3)(x+4a)

so sides = 3 and 4a

Answer:

i think ANSWER IS 8

Step-by-step explanation:

48÷8 = 6

Answer:

8 would be your answer if I'm wrong pls let me know and I will edit soon as posable.

Step-by-step explanation:

the way I did it was doing 48 divided by 6 and I got the answer 8 meaning 8 would be the correct answer

Answer:

8

Step-by-step explanation:

-16-8=8

Answer:

95+d

Step-by-step explanation:

Answer:

computer is an electronic machine which process raw data and gives meaningful information to the user.

Answer:

A computer is an electronic machine which accepts raw data process them and give meaningful information to the user

have a great day ☺

Answer:

60.4 steps per minute

755 divided by 25/2 (12 1/2) equals 60.4

Answer:

1) 130 degrees and 50 degrees 6) a price of a chair is 40, a price of the table is 80 7) a) 16 b)28

Step-by-step explanation:

1) Let it be that the first angle is x, The second one is y

1/5(x+y)=36- the first equation

1/2(x-y)=40- the second equation

The equations are simultaneous

x+y=180   and x-y=80

x+y+x-y=180+80

2x=260

x=130

y=50

6) The cost of a chair is x, the cost of table is y

6x+3y=480  2x+y=160

8x+y=400

8x+y- (2x+y)=400-160

6x=240

x=40

2*40+y=160

y=80

7) The Wan's age is x, the mother's age is y

x+y=60 x=60-y

Two years ago mother's age was y-2, when Wan;s age was x-2

y-2=(x-2)*3

y-2= (60-y-2)*3

y-2= (58-y)*3

y-2=174-3y

4y=176

y= 44

x=60-44=16- Wan's age now

44-16=28- her mother's age when she was born

Answer:

2√15 is your answer . Hope this helps you.

Answer:

2[tex]\sqrt{} 15[/tex] (decimal 7.74596)

Step-by-step explanation:

That sign is called a radical sign used to find square roots so it is used to extract or find the index of the number in this case the answer to that question

So you have

√6 √5 √2 first you find the value of the first number my finding the square root

(by changing the number into a decimal and using long division is the method i use)

Since √6 is √3 and √2 then you put them together like so

√2 √3 √5 √2

then you apply radical rule

(which the formula is √a √a = a,   a>0)

in this case it is √2 √2 = 2

and that equals

2 √3 √5

Apply radical rule again

(now that we did the formula the first time the formula changes now it is √a √b = √ab,    a>0, b>0)

now it is

2√3 x 5

now you just multiply 3 and 5and get 15

then you get

2[tex]\sqrt{} 15[/tex] (decimal 7.74596)

Hope it helped, please mark brainliest if did

Answer:

[tex]8 \frac{9}{10} [/tex] (first option)

Step-by-step explanation:

[tex] - 4 \frac{1}{5} - ( - 13 \frac{1}{10} )[/tex]

[tex] - \frac{21}{5} + 13 \frac{1}{10} [/tex]

[tex] - \frac{21}{5} + \frac{131}{10} [/tex]

[tex] \frac{89}{10} = 8 \frac{9}{10} [/tex]

Answer:

First, set x equal to .93

x=.939393939393...

Then, since the repeating is by two digits, let's multiply x by 100

This would make 100x=93.9393939393...

Now, we can subtract 100x−x

This would leave us with 99x=93 because the repeating digits cancel out.

This looks much easier now right?

Just divide the 99 and isolate the x to get x=9399

Get the simplified fraction, and the final answer is x=3133

Answer:

He will pay $1,771 more than the actual price.

Step-by-step explanation:

260 x 36 = 9360

9360 - 7589

= $1,771

Answer:

The perimeter is the length of the outline of a shape. To find the perimeter of a rectangle or square you have to add the lengths of all the four sides. x is in this case the length of the rectangle while y is the width of the rectangle.

Answer:

A and C

Step-by-step explanation:

Keeping A constant and increasing B.

increasing A and keeping B constant.

The correct option is (A) and (C)

An expression in math is a sentence with a minimum of two numbers/variables and at least one math operation in it.

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division. The terms involved in an expression in math are:

Constant: A constant is a fixed numerical value.

Variable: A variable is a symbol that doesn't have a fixed value.

Term: A term can be a single constant, a single variable, or a combination of a variable and a constant combined with multiplication or division.

Coefficient: A coefficient is a number that is multiplied by a variable in an expression.

Given:

A^B(B +2)

As, both are in ratio of multiplication and B is also the power for A.

There is no possible of decreasing the quantity.

Hence, if A is constant then B increasing and B is constant then A is increasing .

Learn more about expression here:

https://brainly.com/question/14083225

#SPJ5

Answer:

6/13

Step-by-step explanation:

6    +   6    =    12            3

----                    ----    =    ---

13     -   5    =     8            2

Answer:

Step-by-step explanation:

Let Numerator be : x

Denominator be : x + 7

Now,

Numerator = x + 6

Denominator = ( x + 7) - 5

According to the question,

[tex] \displaystyle \: \sf \dashrightarrow \: \frac{x + 6}{(x + 7) \: - 5} = \: \frac{3}{2} [/tex]

[tex]\displaystyle \: \sf \dashrightarrow \: 2(x + 6) \: = 3 \{ \: (x + 7 ) - 5\} \: [/tex]

[tex]\displaystyle \: \sf \dashrightarrow \: 2x \: + 12 \: = \: 3(x + 2)[/tex]

[tex]\displaystyle \: \sf \dashrightarrow2x + 12 \: = 3x + 6[/tex]

[tex]\displaystyle \: \sf \dashrightarrow \: 2x - 3x \: = \: 6 - 12[/tex]

[tex] \: \: \: \displaystyle \: \sf \dashrightarrow \: - x \: = - 6 \\ \\ \: \: \: \: \: \: \displaystyle \: \bf \dashrightarrow \: x \: = 6[/tex]

Numerator = 6

Denominator = x + 7

= 6 + 7

= 13

Thus ,

[tex]\: \bf { \red{ \underline{\dashrightarrow \: obtained \: rational \: number \: = \: \frac{6}{13} }}}[/tex]

[tex] \pink{\rule{160pt}{5pt}}[/tex]

Answer:

1500 calories

Step-by-step explanation:

2400 is 100% of in this case, 8/8

So then we know that 1/8 of 2400 is 300 because we just divide it by 8. Sarah eats 5/8 that much so we multiply 300 by 5 which gives us 1500

Answer:

2400 x 5/8 = 1500

Step-by-step explanation:

Just multiply the fraction they gave u

So first you could need to find the x and y intercepts.

So the x intercept can be found why y is zero and vice versa.

so your graph would go through the points (0,5) and (2.5,0)

Answer:

x = 12

Step-by-step explanation:

2(x-4)=16

2 times x +2 times -4 = 16

2x -8 =16

2x -8 (+8) =16 (+8)

2x = 24

2x (divided by 2) = 24 (divided by 2)

x = 12

Answer:

34.42 min

Step-by-step explanation:

Average:Total number/ Number of quantity

39+42+41+38+39+39+42 = 241

Divided by number of quantity:7

241/7 = 34.42 mins