7-4 practice parallel lines and proportional parts
Parallel lines in geometry are a set of two lines in the same plane that are equidistant to each other. Put simply, they are two perpendicular lines that never meet or intersect.
What are proportional parts in geometry?Mostly used in Triangular Geometry, the theorem of Proportional parts, describes a situation where there is equality of proportion in the dimensions of a shape.
The dimensions referred to above are:
HeightWidthDepth etc.In triangular geometry, a pair of triangles are said to b proportional if they both have similar perimeters, hence corresponding sides.
It is to be noted that the question seems to be missing some information hence the general answer.
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Consider a buffer made by adding 132.8 g of nac₇h₅o₂ to 300.0 ml of 2.31 m hc₇h₅o₂ (ka = 6.3 x 10⁻⁵) what is the ph of the buffer after 0.750 mol of h⁺ have been added?
The ph of the buffer solution given after 0.750 mol of H⁺ have been added is; 4.34
What is the PH of the Buffer?pKa = -log(Ka) = 4.20
[A⁻] = [NaC₇H₅O₂]
[HA] = [HC₇H₅O₂]
Concentration of NaC₇H₅O₂ in the preferred buffer solution is;
[132.8g/(144.11 g/mol * 300 mol)] * 1000 mL/1 L = 3.07 M
Formula for the PH here is;
pH = pKa + log [A⁻/HA]
Thus;
pH = -log(6.3 x 10⁻⁵) + log [3.07/2.31]
pH = 4.34
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The lagrange corporation had the following budgeted sales for the first half of the current year: cash sales credit sales january $70,000 $340,000 february $50,000 $190,000 march $40,000 $135,000 april $35,000 $120,000 may $45,000 $160,000 june $40,000 $140,000 the company is in the process of preparing a cash budget and must determine the expected cash collections by month. To this end, the following information has been assembled: collections on sales: 60% in month of sale 30% in month following sale 10% in second month following sale the accounts receivable balance on january 1 of the current year was $70,000, of which $50,000 represents uncollected december sales and $20,000 represents uncollected november sales. The total cash collected during january by lagrange corporation would be:
Assuming $20,000 represents uncollected november sales. The total cash collected during january by lagrange corporation would be:$331.500.
Total cash collectedFirst step
Total Credit Sales in December= $50,000/40%
Total Credit Sales in December= $125,000
Second step
Total cash collected during January = Cash sales of January + (60% x Credit sales of January) + (30% x Credit sales of December)+ Uncollected November sales
Let plug in the formula
Total cash collected during January = $70,000 + (60% x $340,000) + (30% x $125,000) + $20,000
Total cash collected during January=$70,000+204,000+37,500+$20,000
Total cash collected during January=$331,500
Inconclusion the total cash collected during january by lagrange corporation would be:$331.500.
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A customer opened a file attachment and now her pc is infected with ransomware
The action that one should do first is to Disconnect the PC from the network.
What do one do in case of ransomware?When a person is attacked by this worm, experts has stated that the right thing to do is to quickly disconnect the computer from the network.
One can do so by turning off Wi-Fi. Then one can use another device to make an online search to see the kind of ransomware that has been used on your system.
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A customer opened a file attachment, and now her PC is infected with ransomware. She's unable to open any of her files. Which action would you take first?
A. Reinstall the operating system
B. Run an antivirus scan
C. Pay the ransom to recover the data
D. Disconnect the PC from the network
E. Restore files from backup
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How many different nth roots does a nonzero complex number have?
The Complex nth Roots Theorem with any nonzero complex number has exactly n ∈ N distinct nth roots.
What is a non-zero complex number?This is the quantity which does not equal zero is said to be nonzero. A real nonzero number must be either positive or negative, and a complex nonzero number can have either real or imaginary part nonzero.
The roots lie on a circle of radius centered at the origin and spaced out evenly by angles of 2π/n.
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How might stem cell research change the future of organ transplantation
Identify a feeling that ginsberg conveys with his use of style, structure, and theme.
Answer: C. A sense that the speaker feels out of place in 1950s America
Explanation:
A camera is mounted on a tripod feet high at a distance of feet from george, who is feet tall. look at the model to the right. if the camera lens has angles of depression and elevation of , will george's feet and head be seen by the lens? if not, how far back will the camera need to be moved to include george's feet and head?
To capture his feet and head, the camera will need to be moved at least one foot backward. This is an Angles of Elevation and Depression theorem exercise.
What is the Angle of Elevation Theorem?The angle of elevation is the angle between the line of sight and the horizontal line when an observer looks up. While the Angle of Depression refers to the angle that is formed when the observer looks down.
The formulas are given as:
tan θ = y/x ⇒ θ = tan -1 (y/x).
How to calculate the distance required for the camera to capture Geroge completelyLet us assume that x is the distance in feet that the tripod must be moved back.
Recall that the angle of depression and elevation as given in the question (full version attached) is 20°
The height of the Tripod is 4 feet, at a distance of 10 feet, therefore,
tan (20°) * (10 + x) = 4
⇒
x =4/tan (20°)-10
x= 4/(10.989909678 - 10)
x = 0.9899
x ≈ 1 feet.
Hence the camera must be moved back about 1 feet to capture Geroge..
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Drag the numbers to put the following steps in the correct order
Answer:
Can you put the steps in the question or is it a trick ❓
For a laboratory assignment if the equipment is working the density function of the observed outcome
Based the density function of the observed outcome, the probability [tex]P(x\leq \frac{1}{3} )[/tex] is equal to 0.1388.
What is a density function?A density function can be defined as a type of function which is used to represent the density of a continuous random variable that lies within a specific range.
Given the following density function:
[tex]f(x)=\left \{ {{2(1-x),\;0 < x < 1} \atop {0,\; otherwise}} \right.[/tex]
Next, we would calculate [tex]P(x\leq \frac{1}{3} )[/tex];
[tex]P(x\leq \frac{1}{3} )=\int\limits^\frac{1}{3} _0 {f(x)} \, dx \\\\P(x\leq \frac{1}{3} )=2 \int\limits^\frac{1}{3} _0 {(1-x)} \, dx \\\\P(x\leq \frac{1}{3} )=2|x-\frac{x^2}{2} |\limits^\frac{1}{3} _0\\\\P(x\leq \frac{1}{3} )=2[\frac{1}{3} -\frac{1}{2} (\frac{1}{3})^2]\\\\P(x\leq \frac{1}{3} )=2[\frac{1}{3} -\frac{1}{18}]\\\\P(x\leq \frac{1}{3} )=0.1388[/tex]
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A scientist views different objects using a light microscope. which features would the scientist most likely see for samples from multicellular organisms?
Through the use of a light microscope it is possible to observe in multicellular organisms different types of cells and organelle features, and in general, they are all very small.
What are multicellular organisms?They are all those forms of life whose bodies are composed of a diversity of cells organized, hierarchical, at the cellular level through organelles that are specialized cell differentiations.
The cells that make up these organisms have different shapes and sizes and, in general, they are all very small, so to see them it's needed a light microscope, an instrument that increases many times the size of samples.
Therefore, we can conclude that through the use of a light microscope it is possible to observe in multicellular organisms different types of cells and organelle features, and in general, they are all very small.
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Based on the model of cellular transport, the conversion of atp to adp provides a mechanism for
Based on the model of cellular transport, the transport of a substance against its electrochemical gradient is accomplished with energy input from ATP.
What is active transport?It is a cellular mechanism by which some molecules cross the plasma membrane against a concentration gradient with the consequent expenditure of energy.
The carrier proteins that intervene in the transport of molecules require an energy supply, in the form of ATP, it is carried out at the expense of respiration and photosynthesis processes; by hydrolysis of ATP by membrane ATP hydrolases.
Therefore, we can conclude that based on the model of cellular transport, the transport of a substance against its electrochemical gradient is accomplished with energy input from ATP.
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The size of a tv screen is given by the length of its diagonal
Which of the indicators on the chart above tell(s) us that Australia and New Zealand are highly developed countries?
A.
per capita GDP
B.
unemployment rate
C.
infant mortality rate
D.
all of the above
Answer:
Answer: D
GDP per capita is a measure of a country's economic output that accounts for its number of people.
The unemployment rate is defined as the percentage of unemployed workers in the total labor force.
The infant mortality rate is the number of deaths under one year of age.
Given the above information, a country with a higher GDP would have a more stable economy aiding in growth. A lower unemployment rate would show a surplus of jobs indicating, once again, a steady and growing economy. Lastly, a lower infant mortality rate would show access to advanced medicine and a highly trained medical field. All three of these examples are indicators of a highly developed country.
Explanation:
When the 0.10 m solution of hclo2 is allowed to come to equilibrium, what percent of the acid molecules are ionized?
If 0.10 m solution of hclo2 is allowed to come to equilibrium, the percent of the acid molecules that is ionized is 29%
We have
HClO2 = 0.1 mole = 0.012
HClO + H2O ⇄ ClO₂⁻ + H₂O
Ka = 0.1α x 0.1α / 0.1(1-α)
= 0.1α²/1-α = 0.12
We have to form a quadratic equation from the above
0.1α² = 0.012 - 0.12α
We write the equation to be
0.1α² + 0.012 - 0.12α = 0
To solve the equation above, the quadratic formula calculator was used.
[tex]\frac{-b+-\sqrt{b^2-4ac} }{2}[/tex]
alpha = 0.29
This is 29 percent. Therefore the percentage of ionization is 29%.
What is ionization?This is the process through which neutral ions are chraged to become electrically charged.
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In florida, the class e driver license is for drivers of _____.
Answer:
personal vehicles
Explanation:
like an automobile
Determine the form of each augmented matrix: 4 11 2 −6 0 −5 8 7 0 0 −2 3 1 0 0 −6 0 1 0 3 0 0 1 3 1 0 3 −6 0 6 0 8 7 0 1 13
The forms of each of the matrices depicts how the row and column elements of the matrices are arranged
The matrix A is in row echelon formThe matrix B is in reduced row echelon formThe matrix C is is neither in row echelon form nor in reduced row echelon formHow to determine the form of the matrices?The matrix A is given as:
[tex]\left[\begin{array}{cccc}4&11&2\\0&-5&8\\0&0&-2\end{array}\right]\left[\begin{array}{c}-6&7&3\end{array}\right][/tex]
The elements on the leading diagonals are: 4, -5 and -2
The elements under the leading diagonals are 0, 0 and 0
When the elements under the leading diagonals are 0, then the augmented matrix is row echelon form
The matrix B is given as:
[tex]\left[\begin{array}{cccc}1&0&0\\0&1&0\\0&0&1\end{array}\right]\left[\begin{array}{c}-6&3&3\end{array}\right][/tex]
The elements on the leading diagonals are: 1, 1 and 1
All other elements in the matrix are 0's
When the elements on the leading diagonals are 1's, and other elements are 0's, then the augmented matrix is reduced row echelon form
The matrix C is given as:
[tex]\left[\begin{array}{cccc}1&0&3\\0&6&0\\7&0&1\end{array}\right]\left[\begin{array}{c}-6&8&13\end{array}\right][/tex]
The above matrix is neither in row echelon form nor in reduced row echelon form, because it does not satisfies the condition of both forms of matrices
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Answer:
in picture below that I got from edg 23 precalc
Explanation:
the growth of squatter settlements within urban areas in latin america, as shown in the photograph, can be explained by rapid migration to cities and the
The growth of squatter settlements within urban areas in Latin America can be explained by rapid migration to cities and the lack of suitable regulations.
What is an informal settlement?An informal settlement is an illegal occupation of public and/or private areas by people who generally do not have a proper home to live in.
The uncontrolled proliferation of illegal settlements is due to the lack of public policies aimed at regulating this type of occupation.
The lack of homes is a real problem in many countries around the world, especially in Latin America.
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What is the main reason sundiata is remembered in legends?
Answer:
Sundiata killed the Soso King, Sumanguru, with a poisoned arrow.
Explanation:
Sundiata killed the Soso King, Sumanguru, with a poisoned arrow.
which of the following most accurately explains an impact of burmese pythons on the everglades community in southern florida using the data provided?
An impact of Burmese pythons on the everglades community in Florida is that python predation has caused a trophic cascade that changed the mosquitoes' niche.
The impact of Burmese pythons.As a result of the predation by invasive Burmese pythons in the United States of America, the number of raccoons and white-tailed deer has decreased significantly in southern Florida.
Consequently, the mosquitoes' niche has been changed by a trophic cascade because they were forced to find alternative hosts such as cotton rats.
Based on the scientific records and information, we can deduce that an impact of Burmese pythons on the everglades community in southern Florida is that python predation has caused a trophic cascade that changed the mosquitoes' niche.
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What is the value of x? sin64°=cosx enter your answer in the box. x = °
Sin and cosine of the acute angle are complementary trigonometric functions. This means that between these trigonometric functions, the rule of complementary acute angles applies: sin64° = cos(90°-64°) = cos26°
So, if we have given cos64° = cosx and we want to determine the value of the acute angle x, given the complementarity of the angles to 90 degrees, the required value of the angle x is 26°.
The answer is: x = 26°
To find out what normita and her family do on holidays, write the appropriate word or phrase from the list. you won't use all the words, but none of the words are used more than once. ¡ojo! remember verb/subject agreement when conjugating verbs.
The appropriate phrase from the list that uses the verb/subject agreement is "When someone in my family has a birthday, we always have a party".
What is verb/subject agreement?The Subject-verb agreement simply means that a subject and its verb must be both singular or plural. In this case, a singular subject takes a singular verb and a plural subject takes a plural verb.
From the complete question, the appropriate phrase from the list that uses the verb/subject agreement is "When someone in my family has a birthday, we always have a party".
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Why is it useful to have your bank account and routing numbers when using tax preparation software? everfi
It is useful to have a bank account and routing numbers when using tax preparation software so as to indicate where tax refunds should be sent.
What is a tax preparation software?A tax preparation software can be defined as a type of computer software that is designed and developed to assist individuals when they are filing their taxes, tax returns and bank account preparations.
Basically, it is very useful and important for individuals to have a bank account and routing numbers when using tax preparation software because it would help them to indicate where tax refunds should be sent.
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7.2 connecting intercepts and linear factors answer key
An example of 7.2 connecting intercepts and linear factors is Graph y = x + 4 and y = x - 2 using a graphing calculator and then sketch the graphs on the grid.
What are linear factors?The linear factors of a polynomial are known to be the first-degree equations that are said to be the framework of more complex and higher-order polynomials.
The Graph of y = x + 4 and y = x - 2 with the sketch of its graphs on the grid is shown in the image attached.
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In line 20 what has made all the difference according to the speaker of the poem
Answer:
show me line 20 i am a a+ english student
Explanation:
identify the correct descriptions of these major anchorages that thrived because of powerful rulers who wished to generate commercial wealth.
A major anchorage that thrived because of powerful rulers who wished to generate commercial wealth is Melaka.
What is an entrepot?An entrepot can be defined as a trading station that is situated or established at the borders between communities and towns in a country, so as to make trade-related changes possible for different trade partners.
Basically, Melaka is a key cosmopolitan entrepot that is situated (located) or established to the east of the Bay of Bengal and it thrived because of its close proximity to the Malayan tropical produce.
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Which newspaper headline was most likely published in 1803?
Answer:
I'm not completely sure but I would say "The Young Republic doubles in size" was the headline that was most likely published in 1803.
Which of the following statements about the art of the Pacific Islands is false?
A.
Traditional religions forbid the making of religious art.
B.
Carving is a specialized art form that is practiced in the Pacific Islands.
C.
Featherwork is an art form of the Pacific Islands.
D.
Shells are used for artwork.
Answer:
The answer is A. Traditional religions forbid the making of religious art.
Explanation:
What issues facing journalist are mentioned in the news brainly
The main issue that news outlets keep referring to when talking about issues facing journalists is Credibility.
Why is credibility the main issue?These days journalists are said to be quite biased in their reporting in order to get people to be more interested in issues that the journalist values.
This is what gave rise to the term, "fake news." The issue has gotten so bad that a lot of people doubt the credibility of journalists and news outlets when they report on certain things which has affected the impact of the news.
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A powdered mix can be transformed into a cool jiggly salad or dessert
A powdered mix being transformed into a cool jiggly salad or dessert is True.
What is a Powdered mix?Thus is defined as a processed-food product which is usually in the form of powder for consumption.
The powdered form can be used to make a variety of food such as salad and dessert thereby making True the most appropriate choice.
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