8-1 additional practice right triangles and the pythagorean theorem envision geometry
The value of x in the right triangle using the Pythagorean theorem is 15 units
How to determine the value of x in the right triangle?From the right triangle (see attachment), we have the following Pythagoras theorem
x² = 12² + 9²
Evaluate the exponents
x^2 = 144 + 81
Evaluate the sum
x^2= 225
Take the square root of both sides
x = ±15
The value of x cannot be negative.
So, we have:
x = 15
Hence, the value of x is 15 units
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A rifle of mass 2 kg is suspended by strings. the rifle fires a bullet of mass 0.01 kg at a speed of 200 m/s. the recoil velocity of the rifle is about
Answer:
-1m/s
Explanation:
P gun+ P bullet= P gun + P bullet
u= for both at first is zero
then
-P gun=P bullet
hence
P=mv
-2v=(0.01×200)
-2v=2
v= -1m/s
The puente hills landfill in california contains about 123 million tons of landfill waste and burns lfg to produce electricity. In a typical landfill, one million tons of landfill waste emits approximately 432,000 cubic feet of lfg per day. Calculate how much lfg is emitted at the puente hills landfill per year
The amount of landfill gas (lfg) which is emitted at the puente hills landfill in California per year is 53136000 cubic feet of lfg.
What is lfg (landfill gas)?Landfill gas or lfg is the which is generated by the waste present on land by the action of microorganism.
The puente hills landfill in California contains about 123 million tons of landfill waste and burns lfg to produce electricity.
In a typical landfill, one million tons of landfill waste emits approximately 432,000 cubic feet of lfg per day. Thus, the cubic feet of lfg produced from 123 million tons is,
[tex]\text{lfg}=123\times432000\\\text{lfg}=53136000\rm; ft^3[/tex]
Thus, the amount of landfill gas (lfg) which is emitted at the puente hills landfill in California per year is 53136000 cubic feet of lfg.
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What is the value of θ for the acute angle in a right triangle? sin(θ)=cos(58°) enter your answer in the box. θ= °
Answer:
The answer is 32.
Explanation:
Verified by correct test results.
Rafael, a high-school student, wants to be a police officer. what would be a way for rafael to accomplish his goal?
The way for Rafael to accomplish his goal is finish with a good grade in school, have a clean record and then apply to the police academy.
What does it mean to accomplish one's goal?For a person to be able to achieve a specific aim, they have to succeed in doing putting effort to doing he right thing that can lead to the success of that goal.
Hence the best thing for Rafael to accomplish his goal is finish with a good grade in school, have a clean record, no fighting, criminal records or any form of abuse and then He can apply to the police academy.
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Answer: C
Explanation: PLATO Users
How does the narrator’s viewpoint compare to the turtle’s in this passage? the narrator and the turtle both agree that jim talks too much. the narrator and the turtle both wish that jim would learn to play the fiddle. the narrator and the turtle both love to play the fiddle for the plantation owner. the narrator and the turtle both dislike jim.
Answer:
The answer is A. The narrator and the turtle both agree that Jim talks too much.
Explanation:
Answer: How does the narrator’s viewpoint compare to the turtle’s in this passage?
The narrator and the turtle both agree that Jim talks too much.
The narrator and the turtle both wish that Jim would learn to play the fiddle.
The narrator and the turtle both love to play the fiddle for the plantation owner.
The narrator and the turtle both dislike Jim.
Explanation: its A because it said in story
Complete the following table by indicating if each attribute characterizes a competitive market, a monopolistically competitive market, both, or neither. check all that apply.
The following are attributes of only a competitive market:
price taker
identical products
The following is not an attribute of either markets: few sellers
The following is an attribute of both markets: price is equal to marginal cost
What is a competitive market?
A competitive market is characterized by many buyers and sellers of identical goods and services. Market prices are set by the forces of demand and supply. So, buyers and sellers are price takers There are no barriers to entry or exit of firms into the industry.
What is a monopolistically competitive market?A monopolistic competition is when there are many firms selling differentiated products in an industry. The demand curve is downward sloping. it sets the price for its goods and services.
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How much time does it take light from a flash camera to reach a subject 6. 0 meters across a room?
Answer:
The time it takes light from a flash camera to reach a subject 6.0 meters across a room in scientific notation is 2.0 *10^-8 s.
Of the following potential benefits, which is least likely to be provided by the upgraded system? human representatives will not be needed to respond to some inquiries. Human representatives will not be needed to respond to some inquiries. The company will be able to provide a human representative for any incoming call. The company will be able to provide a human representative for any incoming call. Customers are likely to spend less time listening to information not relevant to their issue. Customers are likely to spend less time listening to information not relevant to their issue. Customers will be unable to mistakenly select the incorrect department for their particular issue
The company being able to provide human representative for any incoming call is least likely to be provided by the upgraded system.
What is Upgraded system?
This involves the replacement with a better version in order to keep the system up to date.
Human representative for any incoming call is least likely to be provided by the upgraded system as it deals with personnel management with less effect on the system.
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A firm evaluates all of its projects by applying the irr rule. year cash flow 0 −$157,300 1 74,000 2 87,000 3 46,000 a. what is the project's irr? (do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. if the required return is 11 percent, should the firm accept the project?
Based on the cashflows for the firm then its IRR can be found to be 16.26%. With the given required return, the firm should accept project.
What is the IRR?The IRR can be found using a Spreadsheet with the IRR function:
= 16.26%
Should the project be accepted?The IRR rule is that if the IRR is greater than the project's required return, the firm can accept the project.
The IRR of 16.26% is greater than the required return of 11% so the firm should accept this project.
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As climate changes which type of reproduction would most likely result in a greater chance of survival for species
Answer:
S e xual Reproduction
Explanation:
The genetic diversity of s e xually produced offspring is thought to give species a better chance of surviving in an unpredictable or changing environment.
Use the drop-down menus to select the organic compound model being described. 1. shows valence electrons: 2. shows chemical composition but no structure: 3. is used most for hydrocarbons; shows lines and functional groups only:
The organic compound model being described are respectively; Lewis Structure; Molecular; Skeletal
What is the Lewis Structure?1) The organic compound model being described that shows valence electrons is called Lewis structure
2) The organic compound model being described that shows chemical composition but no structure is called molecular
3) The organic compound model being described that Is used most for hydrocarbons, shows lines and functional groups only is called; skeletal.
The Lewis structure deals with valence shell electron configuration of various atoms.
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Answer:
1. Lewis structure
2. Molecular
3. Skeletal
4. Structural
5. Space filling
6. Ball and stick
This idea enhances wollstonecraft’s argument by insisting that women deserve to be educated despite their inferior capacity for learning. Suggesting that women’s natural curiosity will lead to trickery if it is not nurtured through education. Asserting that domestic chores offer fulfillment because they require a vast knowledge of the world. Claiming that women who excel in domestic roles should be called upon to serve as world leaders
A vindication of the rights of women by Mary Wollstonecraft is a political philosophy. In the excerpt, the author implies that a woman's inquisitiveness will lead to trickery.
What is the theme of A Vindication of the rights?A vindication of the rights of women is a dedication work to Charles. M. Talleyrand. It depicts the major denial and oppression faced by a woman in society and women's education.
The narrator suggests that if women are forced to only the domestic work then they will resort to clever and tricky ways like visiting fortune tellers, rivalries, and engaging in silly activities.
Therefore, option B. suggests that women can assort in tricky and clever ways.
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Answer:
b
Explanation:
What process brings the deep cold ocean currents up to the surface?
Answer:
upwelling
Explanation:
simce unlimited amount of water can not sink to the surface
Can employees be held legally responsible for an environmental violation
What is the controlling idea? many people seeking to lose weight eliminate carbohydrates from their diets. carbohydrates’ bad reputation ignores the benefits they can offer. there are many dishes that pair healthy vegetables with pasta. athletes must increase their carbohydrate intake to improve performance.
Answer:
B.) Carbohydrates’ bad reputation ignores the benefits they can offer.
Explanation:
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Carbohydrates’ bad reputation ignores the benefits they can offer, is the controlling idea according to the question. Therefore option B is correct.
What is Carbohydrate?Exactly carbs are Sugar molecules makeup carbohydrates or carbs. Carbohydrates are one of the three primary nutrients included in foods and beverages, along with proteins and fats. Glucose is created by your body's breakdown of carbs. The primary energy source for your body's cells, tissues, and organs is glucose, also known as blood sugar.
Glucose, produced by the body's breakdown of carbs, serves as the main fuel for the brain and muscles. One of the three macronutrients—nutrients that the body needs in greater quantities—is carbohydrates.
Hence, Carbohydrates’ bad reputation ignores the benefits they can offer, is the controlling idea according to the question
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Select the correct answer. it was not the first time for me to experience the river's charm. this time i saw the tupelo, cypress, and yaupon trees. through the eyes of a man who has lived his entire life along the river. our guide possessed the intimate knowledge of its flora and fauna and history that only a native could know. which is the best way to rewrite the underlined portion of the passage?
Answer:
A.
This time I saw the tupelo, cypress, and yaupon trees through the eyes of a man who has lived his entire life along the river.
Explanation: e might look the same but theres an extra comma that makes it wrong
E.
This time I saw the tupelo, cypress, and yaupon trees(,) through the eyes of a man who has lived his entire life along the river.
Describe rosenhan’s initial study of social perception and attribution involving the mental hospital and the eight pseudopatients. Explain the significance of the results
Answer:
There were two parts to this test. The first part was where Rosenhan had eight research investors go into a physiocratic hospital and pretend that they were patients. After a while they reported that they were starting to hear voices. After this the five people were sent to a hospital in five different states and then reported that they had felt perfectly fine. The second stage was when he went to a hospital and told the hospital what was going to happen. The people at the hospital said they could never be fooled. After a short while some of the people had forty-one people that they believed they were Rosenhan collogues. However, he never sent anyone out at all. The conclusion was that the hospital would not be able to tell the difference between a sane person to an insane person. The experiment also showed that once you have an impression on someone it is hard to change that impression.
Explanation:
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Copper is a metal commonly used for electrical wiring in houses
Answer:
Yes, that is true.
Explanation:
A store offers four different brands of a product it decides to eliminate
Find a recurrence relation for the number of bit strings of length n that contain three consecutive 0s
Do you agree or disagree that we all take risks that could be perceived as dangerous?
Answer:
I agree!
Explanation:
I think it is necessary to take risks in life whether it is dangerous or not.
Two organisms of different species are not likely to compete for the same
All of the following are true about eating prior to exercise except:
Answer: i dont see any choices
Explanation:
so i really cant answer the question ??
A man was walking in the rain he was in the middle of nowhere
Answer:
He should stop by a house and get shelter
Explanation:
Cool down hot food by placing in the freezer for short periods of time
Rock pocket mice are rodents native to the southwest. Normally, the rock pocket mice are tan-colored rodents living in the sandy environment of the west. However, a mutation introduced an allele for dark fur. Scientists are now studying the populations of tan pocket mice living in the sandy environment along with the mutant black mice thriving on dark lava rock from an old lava flow. The rock pocket mice are living examples of evolution occurring today. Which of these statements supports that idea? select all three that apply
Answer:
the answers are c,d and e
Explanation:
What is the rectangular form of the polar equation? r−rcosθ=8
The equation in rectangular coordinates is:
√(x^2 + y^2)*(1 - cos(Atan(y/x))) = 8
What is the rectangular form?Remember that:
r = √(x^2 + y^2)θ = Atan(y/x)Then we can just replace that in the given equation:
r - r*cos(θ) = 8
r*(1 - cos(θ)) = 8
Using the above relations, we have:
√(x^2 + y^2)*(1 - cos(Atan(y/x))) = 8
That is the equation in rectangular coordinates.
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Answer:
x=1/16y^2−4
Explanation:
What are the oxidation numbers of the atoms in this reaction?
Answer:
The oxidation number of an atom is zero in a neutral substance that contains atoms of only one element. Thus, the atoms in O2, O3, P4, S8, and aluminum metal all have an oxidation number of 0.
A cart is moving to the right with a constant speed of 20 m/s
Explanation:
ok so its velocity is +20. where's the rest of the question?