For the data set 6, 5, 10, 11, 13, the mean, x, is 9. What is the standard
deviation?
The formula for the sample standard deviation is s-
12(x – 57).
-
Use the table to help you.
Х
--3
6
5
10
11
-4
1
2
(X -- X)?
9
16
1
4.
13
4
16
46
Sum =

Answer:

x = -4

Step-by-step explanation:

Make x variable on one side.

(x - 2)/3 = (2x + 4)/2

Simplify.

x/3 - 2/3 = 2x/2 + 2

x/3 - 2/3 = x + 2

Add 2/3 and -x on both sides.

x/3 - x = 2 + 2/3

-2/3x = 8/3

Multiply -3/2 on both sides.

x = -4

Answer:

x=-4

Step-by-step explanation:

(x-2)/3 = (2x+4)/2

We can use cross products

(x-2) *2 = 3(2x+4)

Distribute

2x-4 = 6x+12

Subtract 2x from each side

2x-4-2x = 6x-2x+12

-4 = 4x+12

Subtract 12

-4-12 = 4x+12-12

-16 = 4x

Divide by 4

-16/4 = 4x/4

-4 =x

Answer:

D. kilograms

Step-by-step explanation:

A small dog is about the size of a human infant. We measure infants in kilograms, so the option best fitting for measuring a dog would be kilograms or kg.

Answer:

y = −2x + 13

Step-by-step explanation:

equation of line slope intercept form is y = mx +c

where m is slope and c is y intercept

when two lines are parallel then their slope are equal.

_______________________________________

Given line

CD

y = −2x − 2

it is in form of y = mx +c

thus, m = -2

Given that other line parallel to CD  y = −2x − 2

Thus, its slope will be -2.

Let the equation of required line be

y = mx +c (as slope will be -2)

Then equation of line will be

y = -2x +c

Given that this line contains (4,5) it will satisfy the equation y = -2x+c

using x = 4 and y = 5

we have

y = -2x +c

5 = -2*4 + c

=> 5 = -8 + c

=> c = 5+8 = 13

Thus, equation of line parallel to  y = −2x − 2 and containing point(4,5) is

y = −2x + 13

Answer:

A. y = −2x + 13

Step-by-step explanation:

Answer:

63 minutes or 1 hour 3 minutes

Step-by-step explanation:

We can use ratios to solve

18 minutes    x minutes

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

2 bowls          7 bowls

Using cross products

18*7 = 2x

Divide by 2

18/2 *7 = x

63 minutes

Answer: 63 minutes or 1 hour and 3 minutes

Step-by-step explanation:

18 minutes is how long it takes to make 2 bowls. To find out how long it takes to make 1 bowl, divide by 2.

18 / 2 = 9

Now multiply that by 7 to find out how long it takes to make 7 bowls.

9 * 7 = 63

63 minutes

Answer:

C

Step-by-step explanation:

Noting that

+ (- ) is equivalent to subtraction

- (- ) is equivalent to addition

Given

13 + (- 12) - (- 5)

= 13 - 12 + 5

= 1 + 5

= 6 → C

Answer:

C) 6

Step-by-step explanation:

13 + (-12) - (-5) = 13 + (-12) + 5

                       = 1 +5

                      = 6

13 & (-12 ) have different sign, so subtract and put the sign of the greater number's sign.

Answer:

Step-by-step explanation:

1 one 10 ten 100 hundred 1.000 one thousand 10,000 ten thousand 100,000 hundred thousand 1,000,000 One million 10,000,000 ten million 100,000,000 Hundred million 1,000,000,000 One billion 10,000,000,000 ten billion 100,000,000,000 hundred billion 1,000,000,000,000 one trillion etc.

Answer:

10,000,000

Step-by-step explanation:

Answer and Step-by-step explanation:

Well, the product would not change much. If we took the problem -3*7 it has one negative number and one positive number. Now, the rule is when there is two different signs, the answer becomes negative right away. So, your answer would be -21. If the integers were the same, the equation would be 3*7=21. Therefore, there is not much change in the product only the signs.  

Answer:

Solution,

Theorem:

The angle bisector theorem states that if a ray bisects an angle of a triangle,then it divides the opposite side into two segments that are proportional to other two sides.

By the theorem,

[tex] \frac{24}{9x - 9} = \frac{32}{6x + 6} \\ or \: 24(6x + 6) = 32(9x - 9) \\ or \: 144x + 144 = 288x - 288 \\ or \: 144x - 288x = - 288 - 144 \\ or \: - 144x = - 432 \\ or \: x = \frac{ - 432}{ - 144} \\ x = 3[/tex]

hope this helps...

Good luck on your assignment..

Answer:

x = 3 :)

Step-by-step explanation:

(24 / (9x - 9)) = (32 / (6x+6))

24 (6x + 6) = 32 (9x - 9)

144x +144 = 288x - 144

-144x = -432

x = (-432 / -144)

x = 3

Answer:

Mean?

Step-by-step explanation:

Not enough context

Answer: √C.both the mean and the median

Step-by-step explanation:

So here is the full text of your question.

Ari’s teacher says he may have his report grade based on either the mean or the median of his last six test scores.

88%, 73%, 97%, 76%, 90%, 80%

Which measure of center would best represent Ari’s grade?

A. the mean

B.the median

√C.both the mean and the median

D.neither the mean nor the median

*I know this ? was awhile back, However I thought it may help someone else who may be looking for the answer :)

Answer:

24s + 6t + 17p= 202

Step-by-step explanation:

Answer:

24x + 6y + 17z = 202

Step-by-step explanation:

Let sweaters be x

T-shirt be y

Pant be z

The equation is 24x + 6y + 17z

Substituting with the cost of each,

24(5) + 6(8) + 17(2)

120 + 48 + 34 = 202

Answer:

The correct answers are B) 0 Seconds C) 2.5 Seconds and D) 6 Seconds

Step-by-step explanation:

These three values fall in the domain of the function that's represented by the graph. 0 ≤x≤  8. Hope this helps, good luck!

The values that are in the domain of the function represented by the graph are B) 0 Seconds C) 2.5 Seconds and D) 6 Seconds

The sets of all the x-coordinates and all the y-coordinates of ordered pairs, respectively, are the domain and range of a relation.

The domain refers to all of the values that are included in a relation or function.

The Domain set is made up of all used independent input values.

Given:

As, we now the domain are the input values.

From the graph the domain is represented on the x- axis.

So, the graph show the value from 0 to 8 on the x- axis.

Hence, the domain of the graph is { 0≤ x ≤ 8}

Learn more about Domain here:

https://brainly.com/question/28135761

#SPJ2

Answer:

64 mL

Step-by-step explanation:

Step 1: Find % of milk in each cup

1600(0.6) = 960 mL in cup A

1600 - 960 = 640 mL in cup B

Step 2: Find % milk drank in each cup

960(0.4) = 384 mL drank from cup A

640(0.7) = 448 mL drank from cup B

Step 3: Find the difference

448 - 384 = 64 mL

Answer:

Let the number be x

500/100 of x = 9

5x = 9

x = 9/5

The answer is 9/5

Hope this helps.

Answer: 1.8

Step-by-step explanation:

500% of anything is Five times the original number. The inverse of multiplication is division.

To find the answer, divide. 9÷5=1.8

Answer:

60

Step-by-step explanation:

1 min=60 seconds

Answer:

Option A. and D. are correct choices.

Step-by-step explanation:

Slope of the line is (1-4)/(3-(-6)) = -1/3

Using point slope form y - y1 = m(x - x1)

Best Regards!

Answer:

r = 12

Step-by-step explanation:

From the figure attached,

QP is a tangent to the circle O at the point P.

Therefore, by the property of tangency,

OP ⊥ QP

By applying Pythagoras theorem In right triangle QPO,

(Hypotenuse)² = (Leg 1)² + (Leg 2)²

(OQ)² = (OP)² + (PQ)²

(25 + r)² = (35)² + r²

625 + r² + 50r = 1225 + r²

50r = 1225 - 625

50r = 600

r = 12

Therefore, r = 12 units is the answer.

Answer:

r=12

Step-by-step explanation:

Answer:

[tex]\mathrm{B}[/tex]

Step-by-step explanation:

[tex]WV=XY[/tex]

[tex]12x-61=3x+2[/tex]

[tex]12x-3x=2+61[/tex]

[tex]9x=63[/tex]

[tex]9x/9=63/9[/tex]

[tex]x=7[/tex]

[tex]12x-61[/tex]

[tex]12(7)-61[/tex]

[tex]=23[/tex]

Answer:

B. 23

Step-by-step explanation:

This is a congruent triangle by SAS Postulate

So,

XY = WV

=> 3x+2 = 12x-61

=> 2+61 = 12x-3x

=> 63 = 9x

Dividing both sides by 9

=> x = 7

Now Side WV:

=> 12(7)-61

=> 84-61

=> 23

Answer:

A

Step-by-step explanation:

When two angles are complementary, their measures must add up to 90 degrees. Therefore:

2x-2+3x-5=90

5x-7=90

5x=97

x=19.4

2x-2=2(19.4)-2=38.8-2=36.8

Therefore, the correct answer is choice A. Hope this helps!

Answer: 44%

Step-by-step explanation:

Cost of stock = 178

Present value = 256.32

Increase in value = 78.32

= 78.32/178 x 100 = 44%

Answer:

44%

Step-by-step explanation:

Well first you have the starting value $178 and the new value $256.32.

So 256.32 - 178 is 78.32.

So our fraction is 78.32/178.

So we divide them which is .44.

And we have to make a percent which is 44%.

The slope of the line represented by this equation is 4/5.

We know this because this line is in slope-intercept form, y=mx+b, where m represents the slope and b represents the y-intercept. Thus, we can conclude that the slope is 4/5, which means that for every 4 units the line moves up, it also moves 5 units over (because slope is defined as rise/run).

This equation is in slope-intercept form, or

y = mx + b where m is the slope and b is the y-intercept.  The number in the m position in our equation is 4/5, so the slope is 4/5

Hope this helps!

please mark me brainliest!

Answer:

all real numbers

Step-by-step explanation:

5|2x + 4| > -10

Divide by 5

5/5|2x + 4| > -10/5

|2x + 4| > -2

An absolute value is always greater than a negative number so the solution is all real numbers

Answer:

5x - 3y = -21

5x - 3y

= 5(-9) - 3(-8)

= -45 + 24

= -21

the answer is (-9,-8)

Answer:

Option C

please see the attached picture for full solution

hope it helps..

Good luck on your assignment...

Answer:

3/8

Step-by-step explanation:

The expression can be rewritten as b + 1/8 + c

substitute b and c

2 + 1/8 - 7/4 = 16/8 + 1/8 - 14/8 = 3/8

Answer:

3/8

Step-by-step explanation:

b - (-1/8) +c

Subtracting a negative is adding

b+1/8+c

Let b =2 and c = -7/4

2+1/8 - 7/4

2 1/8 - 7/4

Getting a common denominator

2 1/8 - 7/4*2/2

2 1/8 - 14/8

Changing to an improper fraction

17/8 - 14/8

3/8

Answer: 2 goes to 3 3 goes to 2 1 goes to 4 and 4 goes to 1

Step-by-step explanation:

Step-by-step explanation:

i think like this one

hope it right

Answer:

B. False

Step-by-step explanation:

Given

[tex]Points: (x_7 - y_i),(4,8)[/tex]

Required

Is the distance between them [tex]\sqrt{(x_7 - 8)^2 + (y_1 - 4)^2}[/tex]

Given that there are two points, the distance between them is calculated using

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

In this case;

[tex](x_1,y_1)= (x_7 - y_i)\\(x_2,y_2) =(4,8)[/tex]

Substitute these in the given formula

Distance = [tex]\sqrt{(4- x_7)^2 + (8 - y_1)^2}[/tex]

Comparing this with the given formula, both are not the same;

Hence, the formula is false and the correct formula is of the form [tex]\sqrt{(4- x_7)^2 + (8 - y_1)^2}[/tex]

Answer:

1. 5cm

2. 10 [tex]\sqrt{2}[/tex]

Step-by-step explanation:

Answer:

You got the answer right.

The first question BC is 5 cm.

In the second question, we gotta find the hypotenuse.

In a 45 45 90 triangle, the hypotenuse will have a length of  [tex]x\sqrt{2}[/tex], therefore, the side AC is equal to [tex]10\sqrt{2}[/tex].

Answer:

The first way is to color only the leftmost box of the three, and the second is to color only the rightmost box. Reference the example if you need further clarification.

Answer:

A, B, C, D, F

Step-by-step explanation:

A. An image created by a reflection will always be congruent to its pre-image.

Congruent means identical or similar. The orientation, size, and shape of the pre-image are not changed after a reflection- therefore, the pre-image and image are congruent.

B. An image and its pre-image are always the same distance from the line of reflection.

When a pre-image is flipped across the line of reflection, both figures are perfectly symmetrical. Nothing has changed aside from orientation and location on the graph. The number of units between the figures and the line of reflection should remain unchanged.

C. If a point on the pre-image lies on the line of reflection, the image of that point is the same as the pre-image.

When you reflect a pre-image with a point that lies on the line of reflection, that point will stay on the line of the reflection as the rest of the figure is flipped.

I will explain these two answers together since they have similar explanations.

D. The line of reflection is perpendicular to the line segments connecting corresponding vertices.

F. The line segments connecting corresponding vertices are all parallel to each other.

In a reflection, the horizontal or vertical (depending on the line of reflection, y-axis or x-axis) coordinates are altered. However, if one were to draw an imaginary line connecting the corresponding vertices, both the image and pre-image are parallel and perpendicular.

I hope this helped, good luck on your work/test!

Answer:

A. An image created by a reflection will always be congruent to its pre-mage.

B. An image and its pre-image are always the same distance from the line of reflection.

C. If a point on the pre-image lies on the line of reflection, the image of that point is the same as the pre-image.

D. The line of reflection is perpendicular to the line segments connecting corresponding vertices.

F. The line segments connecting corresponding vertices are all parallel to each other.

Step-by-step explanation: This is the correct answer on Edge 2021, just did the assignment. Hope this helps ^-^.

Answer:

part A : the answer is D

part B : the answer is B

Answer:

Part A = D

Part B = B

Step-by-step explanation:

Since we know that Harry needs 2 1/4 Cups of flour for 1 batch of cookies and he needs 10 batches, we simply multiply 2 1/4 or 9/4 by 10 -->

9/4(10) otherwise known as 2 1/4 x 10 = c

--> We then solve by converting 9/4(10) = 90/4

--> Simplify

45/2 = 22 1/2

--> Thus you have your answers

Hope This Helps!