Given:
is given.
Required:
We have to find the value of x
Explanation:
Here in figure, triangle ADE and triangle ABC are similar under AA similarity
\(\begin{gathered} \angle D=\angle B \\ \angle E=\angle C \end{gathered}\)So by this we also write this
\(\begin{gathered} \frac{AD}{AB}=\frac{ED}{CB} \\ \end{gathered}\)Now put the values
\(\begin{gathered} \frac{2}{5}=\frac{4}{x} \\ \Leftrightarrow\frac{1}{5}=\frac{2}{x} \\ \Leftrightarrow x=10m \end{gathered}\)Final answer:
The value of x is 10m
I will mark you brainliest!!
Answer:
Alternate-exterior angles theorem.
Step-by-step explanation:
Two parallel lines are cut by a transversal, and if there are a pair of congruent angles that are outside of the parallel lines, and on opposite sides of the transversal, you will have the alternate-exterior angles theorem.
A survey of eighty students at a certain college reveals that
36 takes english
32 take history
32 take political science
16 takes political science and history
16 takes history and English
14 takes political science and English
6 takes all three
How many students offer only English
By set theοry the number οf students whο οffer οnly English is 12.
What is Set theοry?In mathematics Set theοry studies with sets, which can be infοrmally described as cοllectiοns οf οbjects. Objects οf any kind can be cοllected intο a set, set theοry, as a branch οf mathematics, is mοstly cοncerned with that which are relevant tο mathematics as a whοle.
Given that,
A survey οf eighty students at a certain cοllege reveals that
36 takes English
32 take histοry
32 take pοlitical science
16 takes pοlitical science and histοry
16 takes histοry and English
14 takes pοlitical science and English
6 takes all three
Sο n(s)=80 [ Since the number οf students is 80]
The number οf students whο takes English is denοted by n(E)=36
The number οf students whο takes Histοry is denοted by n(H)=32
The number οf students whο takes Pοlitical Science is denοted by n(P)=32
By set theοry
The number οf students whο takes Pοlitical Science and Histοry is denοted by n(P∩H)=16
The number οf students whο takes English and Histοry is denοted by n(E∩H)=16
The number οf students whο takes Pοlitical Science and English is denοted by n(P∩E)=14
The number οf students whο takes Pοlitical Science, English and Histοry is denοted by n(P∩E∩H)=6
Frοm set theοry ,
n(P∪E∪H) = n(E)+n(H)+n(P)- n(P∩H)-n(H∩E)-n(P∩E)+n(P∩E∩H)
= 36+32+32-16-16-14+6
= 60
Sο the number οf students whο take nοne οf the subjects is (80-60)=20
Hence the number οf students whο οffer οnly English is 12.
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Make a the subject of the formula.
please help asap!!!!!
Answer:
Step-by-step explanation:
W=\(\sqrt{x-a/a}\)
squaring both sides
W^2=(\(\sqrt{x-a/a}\) )^2
W^2=x-a/a
wa=x-a
a=x-a/w
\( \boxed{\boxed{\huge{ \mathrm{ \underline{ Answer} \: \: ✓ }}}}\)
\(w = \sqrt \dfrac{{x - a} }{a} \)\(w {}^{2} = \dfrac{x - a}{a} \)\(w {}^{2} = \dfrac{x}{a} - \dfrac{a}{a} \)\(w {}^{2} = \dfrac{x}{a} - 1\)\( {w}^{2} + 1 = \dfrac{x}{a} \)\( \dfrac{1}{w {}^{2} + 1 } = \dfrac{a}{x} \)\(a = \dfrac{x}{ {w}^{2} + 1 } \)_____________________________
\(\mathrm{ ☠ \: TeeNForeveR \:☠ }\)
Final Examination O
7
Consider the following information from a company's unadjusted trial balance at December 31, 2020. All accounts have normal balances.
Accounts Receivable.
Accounts Payable
Cash
Service Revenue
Common Stock
Equipment
Insurance Expense
Multiple Choice
$ 5,100
680
1,760
6,280
4,600
5,500
430
Land
Notes Payable, Due 2023
Notes Receivable, Matures 2021
Prepaid Insurance
Rent Expense
Retained Earnings, January 1, 2020
Salaries and Wages Expense
What is the total of the debit side of the unadjusted trial balance?
$18.790
4,400
4,600
1,260
430
Saved
1,430
7,910
3,760
The value of total of the debit side of the unadjusted trial balance is,
⇒ $24,350
We have to given that;
Consider the following information from a company's unadjusted trial balance at December 31, 2020.
Hence, We get;
The computation of the total of debit side is shown below;
= Accounts Receivable + Cash + Equipment + Insurance Expense + Land + Notes Receivable + Prepaid Insurance + Rent Expense + Salaries and Wages Expense
= 5100 + 680 + 1760 + 6280 + 4600 + 5500 + 430
= $24350
Thus, The value of total of the debit side of the unadjusted trial balance is,
⇒ $24,350
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Which expression is the factored form of 2/3 x +4?
○2/3(x +6)
O1/3(2x + 6)
O2/3(x + 12)
○2/3( x+ 4)
\( \frac{2}{3} x + 4 \\ = \frac{2}{3}(x + 6) \)
FIRST OPTION IS THE ANSWER
help fast please.........................
The type of angle in which angle 3 and angle 6 are, is that they are alternate interior angles ( option C)
What are angles on parallel lines?Angles in parallel lines are angles that are created when two parallel lines are intersected by another line called a transversal.
Since line c and line b are parallel to each other and line a is the transversal that cut through both of them the angle on line a and line b will have the following characteristics;
They can be;
supplementary
alternate exterior
alternate interior
vertically opposite
and corresponding
The property between angle 3 and angle 6 is that they are alternate interior to each other.
Therefore angle 3 and angle 6 are alternate interior angles.
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how many dozen is he left with?
Answer:
1.75
Step-by-step explanation:
convert to fraction
Amy ate 5/8 of a pizza. If the pizza had 16 slices, how many slices of pizza did she eat?
Answer:
\( \frac{5}{8}16 \\ 10\)
Step-by-step explanation:
she ate 10 slices
please mark me brainliest
PLEASE HELPPP!!!!!!!!
Answer:
x = 5cm
Step-by-step explanation:
We Know
The x-scale is 1:5
Find x.
We Take
25 ÷ 5 = 5 cm
So, x = 5cm
Ian suffered a loss of 10% when his watch was sold at $90. How much should he have sold his watch if he wanted to make a gain of 20%?
Explanation:
This problem is a simple percent chage problem. The absoluge change in price was $12−$8=$4. Relative to the original price, it was 412, which is 0.3333 or 33.33%.
What is the length of the added metal bar?
Answer:
rad 29
Step-by-step explanation:
diagonal is 16+4=20 so \(\sqrt{20}\)
3 and rad20 you will have 20 +9=29
answer is \(\sqrt{29}\)
you roll a six-sided number cube find theprobabilsty of rolling each of the followingP(1 or 6)
When you roll a six-sided number cube you can get the next set of possible results:
\(\lbrace1,2,3,4,5,6\rbrace\)You have a total of 6 possible results.
From the set of possible results you get the set of presults that are 1 or 6:
\(\lbrace1,6\rbrace\)You have 2 results that are 1 or 6
The probability of rolling (1 or 6) is: The number of results that are 1 or 6 divided in the total number of possible results:
\(P(1or6)=\frac{2}{6}=\frac{1}{3}\)Then, the probability of rolling (1 or 6) is 1/3simplify -5+10a+5+10a
Math problem is a lil weird
The answer isn’t 19 or -19
The value of x in the equation 5 / x + 4 = 9 / x - 8 is - 19.
How to solve an equation?An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Therefore, let's solve the equation and find the value of x as follows:
The variable in the equation is x. A variable is a number represented with a letter in an equation,.
5 / x + 4 = 9 / x - 8
cross multiply
5(x - 8) = 9(x + 4)
open the brackets
Hence,
5(x - 8) = 9(x + 4)
5x - 40 = 9x + 36
5x - 9x = 36 + 40
-4x = 76
divide both sides by -4
x = 76 / -4
x = - 19
Therefore,
x = - 19
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Pls answer this quick! Thank you!
Answer:
The answer is -11 and -9 only
Step-by-step explanation:
Explain how you know that (3, 5) is not a solution to the given inequality by looking at the graph.
The reason that the point (3, 5) is not a solution to the given inequality is given below.
We are given that;
y > 2x + 1
Now,
The inequality y > 2x + 1 can be graphed by first graphing the boundary line y = 2x + 1. Since the inequality is strict (y >), we draw a dashed line to indicate that points on the line are not solutions to the inequality. Then, we shade the region above the line to indicate all points that satisfy the inequality.
If we have (3,5) as a point, we can see that it lies on the boundary line
y = 2x + 1.
Since the inequality is strict (y >), points on this line are not solutions to the inequality
Therefore, by the inequality the answer will be given above.
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write each number as a logarithm with base 2:-3
The number -3 written as a logarithm with a base of 2 is log₂(0.125) or log₂(1/8)
What are logarithms?As a general rule, logarithms are mathematical expressions that are written in the form log(x) or ln(x), for natural logarithms
How to rewrite the number as a logarithm?The number is given as:
x = -3
The base of the logarithm is given as:
Base = 2
To rewrite the given number as a base of 2, we take the exponent of the number where the base is 2
This is represented as:
Number =2^-3
Apply the power rule of indices
Number =1/2^3
Evaluate the exponent
Number = 1/8
Evaluate the quotient
Number = 0.125
Hence, when the number -3 is rewritten as a logarithm with base 2, the equivalent logarithm expression is log₂(0.125) or log₂(1/8)
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Green Valley High School recently completed an expansion. Of the new classrooms, 11 are math
classrooms, 8 are science classrooms, and 6 are history classrooms. If a single classroom is picked at
random, what is the probability that the classroom is for math or history?
Answer: 68%
Step-by-step explanation:
The best way to do this is add up the number of math and history rooms, and divide that by the total number of rooms.
There are 17 total math and history rooms, and 25 rooms total.
17/25 = .68
Multiply that by 100 to get the percent and the answer is 68%
Which three equations are equivalent to |2x + 1| − 10 = -3? x = -4 or x = 3 2x + 1 = -7 or 2x + 1 = 7 |2x − 1| = 7 |2x + 1| = 7 2x − 1 = -7 or 2x − 1 = 7 x = 4 or x = -3
Answer:
x = -4 or x = 3
|2x + 1| = 7
|2x - 1| = 7
Step-by-step explanation:
-------------------------------------------------------------------------------------------------------------
Your question is mixed together.. Thus I think you meant:
Which three equations are equivalent to 2x + 1| − 10 = -3
2x - 1 = -7 or 2x - 1 =7
x = -4 or x = 3
x = 4 or x = -3
|2x + 1| = 7
2x + 1 = -7 or 2x + 1 =7
|2x - 1| = 7
-------------------------------------------------------------------------------------------------------------
Solve:
|2x+1| = -3 + 10
|2x+1| = 7
Split into two equation:
2x+1 = 7 or 2x + 1= -7
Now, Solve first one:
2x = 7 - 1
2x = 6
x = 6/2
x = 3
Then, Solve second one:
2x = -7 - 1
2x = -8
x = -8/2
x = -4
Combining results:
x = -4 or x = 3
Hence, Also, |2x + 1| = 7 and |2x - 1| = 7 are correct .
~[RevyBreeze]~
Answer:
|2x + 1| = 7
|2x - 1| = 7
x = -4 or x = 3
Step-by-step explanation:
|2x+1| = -3 + 10
⇒ |2x+1| = 7
Now we know the two equation:
2x+1 = 7 or 2x + 1= -7
Solving 2x + 1 =7
2x = 7 - 1
2x = 6
Divide both sides by 2
x = 6/2
x = 3
Solving 2x+1=-7
2x = -7 - 1
2x = -8
Divide both sides by 2
x = -8/2
x = -4
Therefore, x = -4 or x = 3.
We also know that:
2x+1 = 7 and 2x + 1= -7 are the two equation we use that means it equivalent to |2x + 1| − 10 = -3.
Hence, the three equations are equivalent to |2x + 1| − 10 = -3 is :
2x+1 = 7 2x + 1= -7x = -4 and x = 3~lenvy~
write the equation of the line in fully simplified slope-intercept form.
to get the equation of any straight line, we simply need two points off of it, let's use those in the picture below
\((\stackrel{x_1}{-8}~,~\stackrel{y_1}{-3})\qquad (\stackrel{x_2}{-4}~,~\stackrel{y_2}{-5}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-5}-\stackrel{y1}{(-3)}}}{\underset{run} {\underset{x_2}{-4}-\underset{x_1}{(-8)}}} \implies \cfrac{-5 +3}{-4 +8} \implies \cfrac{ -2 }{ 4 } \implies - \cfrac{1 }{ 2 }\)
\(\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-3)}=\stackrel{m}{- \cfrac{1 }{ 2 }}(x-\stackrel{x_1}{(-8)}) \implies y +3 = - \cfrac{1 }{ 2 } ( x +8) \\\\\\ y+3=- \cfrac{1 }{ 2 }x-4\implies {\Large \begin{array}{llll} y=- \cfrac{1 }{ 2 }x-7 \end{array}}\)
Find the Highest Common Factor (HCF) the following sets of numbers:
6 and 12
10 and 20
8 and 24
24 and 30
8 and 18
9 and 21
18 and 24
20 and 28
15 and 20
12 and 20
Please Help Me I will probably post more like this as its the only thing really that's holding me back from passing 5th grade on khan academy math!!
Answer:
330 cm^3
Step-by-step explanation:
Volume of figure=Volume of the cuboid+Volume of the other cuboid
Volume of figure=240+90=330
Sparkles the Clown makes balloon animals for children at birthday parties. At Ronald's party, she made 3 balloon poodles and 4 balloon giraffes, which used a total of 14 balloons. For Javier's party, she used 10 balloons to make 1 balloon poodle and 4 balloon giraffes. How many balloons does each animal require?
True or false? In a two-column proof, the left column states your reasons.
A. True
B. False
A. True.
In a two-column proof, the left column consists of statements, which are the facts or assumptions that lead to the proof of the theorem, while the right column consists of the reasons or justifications that explain how each statement logically follows from the previous one. Therefore, the left column states your reasons is a true statement.
The answer to the student's question is True. In a two-column proof, the left column contains the statements (steps) and the right column contains the corresponding reasons (justifications).
Explanation:The answer to the question, 'True or false? In a two-column proof, the left column states your reasons', is A. True.
A two-column proof is organized into two columns. The left column contains the 'Statements' and the right column contains the corresponding 'Reasons'. The 'Statements' are the steps that lead to the conclusion of the proof, while the 'Reasons' justify each of those steps according to rules or laws of mathematics.
For example, if we want to prove that the opposite angles of a parallelogram are equal. The left column (Statements) could contain the first step 'ABCD is a parallelogram' and the right column (Reasons) would give the explanation 'Given'. Therefore, in a two-column proof, the left column does represent statements, not reasons.
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Please Help ASAP!! ❤️
Answer:
Step-by-step explanation:
*a is 6:55
*b is 37
*c is 15:12
Factor the greatest common binomial factor from each polynomial
6x^2(5x-1) +5x-1
The factored polynomial is given as follows:
(5x - 1)(6x² + 1)
How are polynomials factored?Polynomials are factored placing the common factor in evidence, then dividing all terms by the common factor.
The polynomial is:
6x²(5x - 1) + (5x - 1).
The common factor is (5x - 1), hence:
\((5x - 1)\left(\frac{6x^2(5x - 1)}{5x - 1} + \frac{5x - 1}{5x - 1}\right) = (5x - 1)(6x^2 + 1)\)
Hence the factored polynomial is given as follows:
(5x - 1)(6x² + 1)
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Select the correct answer from each drop-down menu. Astronomers can use geometry to measure the objects in space and describe their
Please Help.
Astronomers can use geometry to measure the distance of objects in space and describe ttheir relationship.
Who are astronomers?It should be noted that astronomers study stars, planets, and other celestial bodies. It should be noted that they use ground-based equipment, like optical telescopes, and space-based equipment. Some astronomers study distant galaxies and phenomena such as black holes and neutron stars.
In this case, astronomers can use geometry to measure the distance of objects in space and describe ttheir relationship.
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Answer:
distance between, motion
Step-by-step explanation:
plato, I got it right
Help pls ????????!!!!!!
Answer:
let the number of steps taken by friend 1, 2 and 3 be: x, y and z respectively
we know that the mean of the total steps taken by all the friends is 10,350
Since the formula for mean is: sum of all values / number of values
here, the total values is the total number of steps taken
So,
steps taken by friend 1 +steps taken by friend 2 +steps taken by friend 3 +steps taken by friend 4 +steps taken by friend 5 +steps taken by friend 6
all that divided by 6 will give us the mean
so, 7800 + 8000 + 9800 + x + y + z / 6
(25600 + x + y + z)/6 = 10350
25600 + x + y + z = 10350 * 6
x + y + z = 62100 - 25600
x + y + z = 36500
So since the sum of x, y and z is 36500,
we can say that the average value of x , y and z is 12167 (36500/3)
So the next thing to make an equation out of is Median
to find the median, we need to arrange the values in any order you like, i will arrange in descending order
so since the estimated value of all x , y and z is greater than the greatest known value:
x > y > z > 9800 > 8000 > 7800
Since this set of values has an even number of values, we will take the average of the middle 2 values as the median
(9800 + z)/2 = 10000
9800 + z = 20000
z = 10200 -------- we have found one of the three values! getting closer
Now, the final equation will be found from the range
since we already have sorted our data, and the difference of the highest and lowest is the range
x > y > z > 9800 > 8000 > 7800
So, x - 7800 = 7500
x = 15300 ------- now that we have x and z, we can use the first equation to find the value of y and we will be done!
x + y + z = 36500
replacing the values
15300 + y + 10200 = 62100
y = 36500 - 25500
y = 11000
So the three remaining friends walked
15300, 11000 and 10200 steps
Consider the dot plot below. Of the following statements, which two characteristics of this dot plot make the median a better choice than the mean to summarize the center of the distribution?
A dot plot with an axis marked from 0 to 10 at increments of 1 is shown. Plot shows 8 dots at 10, 7 dots at 9, 6 dots at 8, 3 dots at 7, 2 dots at 0 and 6, and 1 dot at 5.
The mean is equal to the median and the data are symmetric.
The peak is equal to the median and the data are skewed.
The data are symmetric and there are outliers.
The data are skewed and there are outliers.
The two characteristics that makes the median a better choice are: A. The data are skewed and there are outliers.
What Characteristics of a Dot Plot Makes Median a Better Choice?In a data distribution, the median is a better choice to use to describe the data over the mean when an outlier exist and the data is skewed.
IN the dot plot given below, the data has an outlier of 10 while the data distribution is also screwed, this makes the median a better choice.
Therefore, the answer is: A. The data are skewed and there are outliers.
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Seventy percent of the children went on the excursion. If 27 stayed at school, how many went?
By using the Unitary Method we get the number of children who went on an excursion was 63. Thus, the total number of children at school is 90.
We are given that,
No. of children who stayed at school is 27,
Also, 70% of the children went on an excursion.
Suppose, the total number of children in percentage is 100%
Out of which 70% went on an excursion
Thus, the children who stayed at school is 100% - 70% = 30%
By using the Unitary method, we can find out the number of 70% of children.
If 30% of the children are 27
Then 70% of the children are = 27 × 100
30
= 63
∴ the total no. of children in the school = 27 + 63
= 90
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