(A U B) n (A n B)
A= {1,3,7,9,10}
B= {2,5,7,8,9,10}​

Answer:

2x-6y=18

Step-by-step explanation:

Sorry if im wrong

The symbols d and sd represent:

The differences in the mean of the paired data entries in the dependent samples.

What is the standard deviation?

A measure of a set of values' variance or dispersion is called the standard deviation.

Here,

d: the difference between paired data in the dependent samples.

sd:  standard deviation.

The dependent samples' dependent samples' standard deviation for the variance between the means of the paired data items.

Hence, the differences in the mean of the paired data entries in the dependent samples.

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Answer:

marvel - c

dc - d

Answer:

marvel c dc c

Step-by-step explanation:

Answer:

(49p2–490p) ÷(p–10)

Step-by-step explanation:

Answer:

a. triangle DEF's lines are all 3 times more than triangle ABC

b. triangle DEF's lines are all 3 times more than triangle ABC

c. 2.5 times 2 = 5

I hope u can elaborate a bit more :)

Answer:

119 degrees

Step-by-step explanation:

The measure of EAC is 119 because 62 + 57 = 119.

Then, EAC and BAD are vertical angles, so they are equal.

Therefore, BAD = 119 degrees

Answer:

It is the first ONE

Step-by-step explanation:

62+57=119

I hope this helps

Answer:

here

Step-by-step explanation:

The product of the 5/8 and 4 is 2.5.

What is the product of numbers?

In mathematics, a product is an outcome of multiplying two or more numbers together.

We have,

5/8 and 4

When looking to find what the product of a number is, you can find each product of a number by multiplying it by another number.

For example, 27 is a product of 9 and 3, because 9 x 3 = 27.

= 5/8 × 4

= 5/8 × 4/1

= 20/8

= 5/2

= 2.5

Hence, the product of the 5/8 and 4 is 2.5.

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Answer:

Step-by-step explanation:

The first cat eats 1/15 of a bag per minute.

The second cat eats 1/10 of a bag per minute.

Together, they eat 1/15 + 1/10 = 1/6 of a bag in one minute.

Hence both can eat \(\frac{2x+3y}{30}\)

when we form equations  out of given statements and then solve them to obtain answer are said word problems.

Given cat x can eat treat = 15 mints

cat x in 1 mint= x/15

given cat y can eat treat = 10 mints

cat y in 1 mint= y/10

hence both cats if eat together =\(\frac{x}{15} +\frac{y}{10}\)

=\(\frac{2x+3y}{30}\)

hence both can eat \(\frac{2x+3y}{30}\).

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3.1634 m , w = 1.1634 , h = 1.91834 m are the dimensions of the box with the largest volume.

What is a simple volume definition?

Volume is defined as the space occupied within the bounds of an object in three-dimensional space. Also called the capacity of the object. The basic formula for the area of ​​a rectangle is length x width, but the basic formula for volume is length x width x height.  

Length of cardboard = 7 m

width of a cardboard = 5 m

let x be the side of square of piece cut from each corner

length of box = (7 -2x) m

width of box = (5 - 2x) m

height of box = x

 volume V = (7 -2x) * (5 - 2x) * X

                 = (35 - 14X - 10X + 4X²) * X

                 = 4X³ - 24X² + 35X

       If v is max v' = 0 and v'' < 0

  v' = 12x² - 48x + 35

  x   =  6.0816 or 1.91834

if x = 6.0816 , box will not be follow.

x = 1.91834

v''(x) = 24x - 48

      = 46.04 - 48 = -1.95 < 0

   V is max.

  length = 7 - 3.8366 = 3.1634 m

width = 5 - 3.8366  = 1.1634 m

 height =  1.91834 m

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Answer:

18/5

Step-by-step explanation:

you have to times then divide

Answer:

$842.98 * 107.25/100 =  $904.10

107.25% = 107.25/100

Step-by-step explanation:

The price is at 842.98 before adding the taxes of 7.25%

if that is the price then it represents 100% of the price. By adding the sales taxes the full price after taxes will be at 100%+7.25% = 107.25 % of the previous price.

The price after sales taxes will be at

$842.98 * 107.25/100 =  $904.10

Both small sample sizes and existing studies can deliver reliable and appropriate outcomes because they serve different purposes in research. Small sample sizes can provide valuable preliminary data, while existing studies offer a broader context and a foundation for comparison and replication.

Small sample sizes can still yield reliable outcomes in certain situations. They are often used in exploratory research or pilot studies, where the primary goal is to gather preliminary data and test the feasibility of a study. Small samples can provide valuable insights into the research topic, generate hypotheses, and identify potential areas for further investigation. While the results may not be statistically significant or generalizable to a larger population, they can still offer meaningful qualitative or exploratory findings.
On the other hand, existing studies play a crucial role in research by providing a broader context and a foundation for comparison and replication. They are often conducted with larger sample sizes and rigorous methodologies, which enhance the reliability and validity of their findings. Existing studies undergo peer review and scrutiny, ensuring that their outcomes meet scientific standards. Researchers can leverage these studies to build upon previous knowledge, replicate experiments, and conduct meta-analyses, which further strengthen the reliability of the outcomes.
Combining both small sample studies and existing research allows for a comprehensive approach to scientific inquiry. While small sample studies contribute by generating initial insights and hypotheses, existing studies provide a robust framework for validating and extending those findings. By acknowledging the strengths and limitations of each approach, researchers can obtain reliable and appropriate outcomes that contribute to the advancement of knowledge in their respective fields.

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Answer:

give each charity $60

Step-by-step explanation:

$814 to divide equally to 5 charities.

From 814  if we give   -100,  -100, -100, -100, -100, we have left 314 to split in 5

the most useful next step is to give each charity $60

From $814  if we give   -100, -100, -100, -100, -100

                                         -60, -60, -60, -60, -60  

we have left now:

814 -5*100 -5*60 = 814-500-300 = $14 left to split among the 5 charity.

Answer:

x=9 y=12

Step-by-step explanation:

eqn 1 - x=2y-15

eqn 2- -5x+4y=3

-5(2y-15)+4y=3

-10y+75+4y-3=0

-6y+72=0

y= 12

x=2y-15

x=2(12)-15

x= 9

Since it's a right triangle we can use Pythagorean theorem to find length of PR

First let's name PR as b

PQ as a

RQ as c

According to Pythagorean theorem a²+b²=c² , where c is hypotenuse , a and b are the other two sides

\( {a}^{2} + {b}^{2} = {c}^{2} \\ 1^{2} + {b}^{2} = ({2.9})^{2} \\ 1 + {b}^{2} = 8.41 \\ {b}^{2} = 8.41 - 1 \\ {b}^{2} = 7.41 \\ \sqrt{ {b}^{2} } = \sqrt{7.41} \\ b = 2.7\)

HOPE IT HELPS

PLEASE GIVE ME BRAINLIEST

Answer:

1, -1, 3, -3, 5, -5, 15, -15

Step-by-step explanation:

The factors of negative 15 are 1, 3, 5, 15, -1, -3, -5 and -15. The solution has been obtained by using the concept of factoring.

What is factoring?

The process of determining the factors is known as factoring. Factoring is the process of determining what to multiply to produce an expression. It is comparable to "breaking" a complex phrase into a number of smaller ones.

In mathematics, the term "factorization" or "factoring" refers to the splitting apart or "factoring" of an entity (such as a number, a matrix, or a polynomial) into a product of another entity, or factors, which when multiplied together yield the original number, matrix, etc.

The factors of negative 15 are all the integers which can be evenly divided into 15.

The positive factors are 1, 3, 5, 15

The negative factors are -1, -3, -5, -15

Hence, the factors of negative 15 are 1, 3, 5, 15, -1, -3, -5 and -15.

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Answer:

(17/6) seconds, (7/2) sec, and 0 meters.

Step-by-step explanation:

See attached image.

Answer:

the answer is 9

Step-by-step explanation:

Answer and Step-by-step explanation:

Area of triangle:

A = \(\frac{bh}{2}\) (Base times height, all divided by 2)

Area of Rectangle/Square

A = bh (base times height)

Triangle:

\(\frac{7*24}{2} = \frac{168}{2} = 84\)

Rectangle:

A = 12.5 * 13 = 162.5

162.5 + 84 = 246.5

#teamtrees #WAP (Water And Plant)

Answer:

14‏/12‏/2019 — However, we know that the line passes through two known points with x and y coordinates. ... The equation of a curve is y = x^2 + ax + b where a and b are integers. ... x2 (or second order polynomial) graphs are symmetrical about their turning point ... Therefore, we know that the line intercepts the x-axis at (-1,0) and (5,0).

Step-by-step explanation:

Answer:

a = -4, b = 3

Step-by-step explanation:

sorry, im a bit late but hoping to help others that need the answer.

when you complete the square for a quadratic, you r answer can come in the form (x+p)^2+q.

in this form, p is the opposite of the x coordinate.

and q is the same as the y coordinate.

to get p and q from this, we find the opposite of the x coordinate and use the y coordinate we are given, and plug them into this equation.

we get: (x-2)^2+1

lets complete the equation now.

(x-2)^2 = x^2 - 4x + 4, then add the one we left out = x^2 - 4x + 5.

now our equation is in the same format as y=x^2+ax+b so we can just pull out the A and B which gives us:

A = -4

B = 5

if i am wrong please feel free to correct me, ty.

Answer:

I thinks this is the answer

198.2673 round up remember, Hope this helps ️‍️‍

First, let's plot the segment RS with endpoints R (-8,5) and S (-6,8)            

 |                

   |           S                 

   |                

   |       R                     

   |                

   -------------------

       -8 -7 -6  

Next, we'll apply the composition of the translation and reflection transformations to the segment.

Translation: (x,y) -> (x+5, y-2)

This transformation shifts every point to the right by 5 units and down by 2 units.

Reflection across the x-axis:

This transformation reflects every point across the x-axis, so every y-coordinate is negated.

To apply the composition of these transformations to the segment, we'll first apply the translation:

R (-8,5) -> R'(-3,3)

S (-6,8) -> S'(-1,6)

Next, we'll apply the reflection:

R'(-3,3) -> R''(-3, -3)

S'(-1,6) -> S''(-1, -6)

So, the image of the segment RS after the composition of the translation and reflection transformations is the segment R''S'' with endpoints R''(-3, -3) and S''(-1, -6):

   |           S''  

   |                

   |                

   |           R''  

   |                 

   -------------------

        -8   -7   -6  

So, the image of segment RS after the composition of the translation and reflection transformations is the segment R''S'' with endpoints R''(-3, -3) and S''(-1, -6).

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The new coordinates of points M and O is determined as;

M = (0.5, - 1)

O = (2.5, -2).

The new coordinate of points M and O after applying the scale factor is calculated as follows;

The given scale factor = 1/2

The current coordinates of point M and O is;

M = (1, - 2)

O = (5, - 4)

A scale factor can be used to either enlarge a figure or decrease a figure.

When the scale factor is less than 1, it means the new figure will be smaller than the original figure.

However, if the scale factor is greater than 1, the new figure will be greater than the original figure.

The new coordinates of points M and O is determined as follows;

M = (1 x 1/2,  -2 x 1/2) = (0.5, - 1)

O = (5 x 1/2, -4 x 1/2) = (2.5, -2)

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Answer:

3 one good luck with the question

Answer:

dddddddddddddddddddddddddd

Answer:

5

Step-by-step explanation:

7-2=5

Answer:

5

Step-by-step explanation:

7 + q if q = -2

7 + (-2)

7 - 2  

 5

Answer:

-24

Step-by-step explanation:

Answer-24

Step-by-step explanation:

3 x -4 x 2

6 x -4 =

-24

Answer:

#1

Ratio of 45-45 and 30-60-90 triangles

45-45

30-60-90

a)  

b)

#2

Find x

Find y

#3

a) sin A = 5/13

b) cos A = 12/13

c) tan A = 5/12

d) A = arcsin (5/13) = arccos (12/13) = arctan (5/12) = 22.6°

Answer:

x= -1/2 and -32

y = -10

Step-by-step explanation:

1) 2(-4x-8y)= (-48)2

8x+3y =-34

*to create a way to cancel out the x*

2) -8x-16y= -96

8x+3y= -34

*add them

-8x +8x =0

-16y + 3y = -13y

-96+ -34= -130

3) -13y =-130

isolate y

4) y = -10

*plug in* to find x into both original equations*

5) 8x + 3(-10) = -34. -4x-8(-10)= -48

*follow order of operations to solve for x

6) 8x -30 =-34. -4x +80 = -48

7) 8x =-4. -4x =128

8) x= -1/2. x = -32