What is the exact value of cosine (startfraction 11 pi over 12 endfraction)? negative startfraction startstartroot 2 + startroot 3 endroot endendroot over 2 endfraction negative startfraction startstartroot 2 minus startroot 3 endroot endendroot over 2 endfraction startfraction startstartroot 2 minus startroot 3 endroot endendroot over 2 endfraction startfraction startstartroot 2 + startroot 3 endroot endendroot over 2 endfraction
Answers
The exact value of the cosine of 11π / 12 will be given as negatice (1 + √3)/(2√2).
What is trigonometry?The connection between the lengths and angles of a triangular shape is the subject of trigonometry.
The trigonometric expression is given below.
⇒ cos (11π/12)
We know that 11π/12 is equal to 165 degrees. Then we have
cos 165° = cos (45° + 120°)
We know that
cos (A + B) = cos A cos B - sin A sin B
Then we have
cos (45° + 120°) = cos 45° cos 120° - sin 45° sin 120°
cos (45° + 120°) = 1/√2 x (- 1/2) - 1/√2 x √3/2
cos (45° + 120°) = - (1 + √3)/(2√2)
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Answer:
A
Explanation:
Related Questions
A number less than twice the square of the same number
Answers
Answer:
2x ^ 2 - 1
Explanation:
Fill in the blank with the correct response. in triangle , , a = 210, and b = 164. the measure of to the nearest degree is
Answers
The measure of angle A to the nearest degree is 40 degrees.
How to apply sine law?
Sine law can be used to find the measure of angle A in the triangle.
Therefore,
a / sin A = b / sin B
where
a =210
b = 164
A = ?
B = 30 degrees
Hence,
210 / sin A = 164 / sin 30
cross multiply
0.5 × 210 = 164 sin A
sin A = 105 / 164
sin A = 0.64024390243
A = sin⁻¹ 0.64024390243
A = 39.7918194996
A = 40 degrees.
In triangle ABC, angle B = 30°, a = 210, and b = 164. The measure of angle A to the nearest degree is.
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Identify reasons to include a subject in an e-mail. check all of the boxes that apply. to give a brief overview of the e-mail to give an idea of the importance of the e-mail to include the message of the e-mail to entice the recipient to open the e-mail
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Emails are electronic messages used to exchange messages. The subject is included in the mail to give a brief overview, and importance and to entice the reader.
What are the components of e-mail?Email is the electronic message that shares information or the messages between the sender and the receivers through electronic devices. The e-mail constitutes of the subject, sender, date, reply, recipient, attachments, body, etc.
The subject of the tagline of the mail is written in just a few words and gives the first impression of the sender. It highlights the purpose and the importance that the mail carries. It also compels the recipient to open the mail.
Therefore, the subject is included in the mail to give a brief overview, and importance and to entice the reader.
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Which point is lincoln trying to make? people cannot build upon the land, because it is considered sacred. it is up to the people to mark the importance of the land. because so many people died, the land cannot be considered sacred. the sacrifices of the soldiers have already made the land sacred.
Answers
Answer:
D
Explanation:
The answer is : The sacrifices of the soldiers have already made the land sacred.
Answer: D) The sacrifices of the soldiers have already made the land sacred.
Explanation:
Please select the word from the list that best fits the definition process in which sediment is dropped and comes to rest
Answers
Answer:
The process in which sediment moved by erosion is dropped and comes to rest is called Deposition.
A person going to a party was asked to bring 5 different bags of chips. Going to the store, she finds 20 varieties.
How many different selections can she make?
a.100
b.12,340
c.15,504
d.32
Answers
Answer:
A
Explanation:
The person can bring a selection of 20 bags because if you multiple the number of bags they were asked to bring by the number of varieties they got at the store you will get a 100
A manager drew this box-and-whisker plot to represent the ages of her 23 employees. every employee is a different age.
Answers
Answer:
Explanation:
About 5 employees have ages that are older than 54 years.
What is a box plot?
A box plot provides the summary of a data using the five number summary that is minimum, lower quartile, median, upper quartile and maximum.
From the diagram, the third quartile is 54 years. Hence 75% of the employees are between 35 to 57 years.
25% are older than 54 years, hence:
Employers older than 54 years = 25% of 23 employees = 5.75
About 5 employees have ages that are older than 54 years.
Describe and explain the difference in muscularity between the crop and the gizzard
Answers
The difference in muscularity between the crop and the gizzard earthworm is that; Crop muscularity is soft while for gizzard it is hard.
What are the differences in Muscularity?Earthworms usually eats the soil that has organic matter such as leaves and others.
Now, the digestive system of earthworms is made up of pharynx, oesophagus, intestine, gizzard and crop. The mode of digestion is that the food passes through the esophagus after which it is now pushed down the crop where it is used for storage and then in the gizzard where the food is being grind.
Finally. the difference between the crop and the gizzard is that the crop muscularity is soft while that of gizzard is hard.
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Her eyes shone as bright as the sun is an example of
Answers
Answer:
the expression is a simile :3
Explanation: a simile is figure of speech comparing two unlike things that is often introduced by like or as (her eyes shone as bright as the sun)
Hope this helps!
Where would you go in france to see the story of william the conqueror? deauville carnac nantes bayeux
Answers
France is the country of Europe that has Paris as the capital city. The story of William the conqueror will be seen in Bayeux of France. Thus, option D is correct.
Who is William the conqueror?William the conqueror was the Monarch of England who led the Norman domination of England. He invaded England to dethrone Harold and became the king.
The Bayeux tapestry of France portrays the art of the William and his story of conquering England. The art is made in the form of threaded woolen fibers embroidered on the fine cloth.
Therefore, option D. William will be seen at the Bayeux of France.
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What is the inverse of confidentiality, integrity, and availability (c.i.a.) triad in risk management?
Answers
Answer:
diclosure,alteration,destruction
Explanation:Mark brainliest once u can
The inverse of confidentiality, integrity, and availability (c.i.a.) triad in risk management are disclosure, alteration, and destruction. The correct option is C.
What is risk management?Organizations examine the risks, threats, and vulnerabilities that could jeopardize the privacy, accuracy, and accessibility of their systems and data during risk assessments.
The CIA trinity must be taken into account when talking about data and information. The three fundamental components of an information security concept known as the CIA triad are confidentiality, integrity, and availability.
Each element stands for a core information security goal. For example, when it comes to a company's secret information, information secrecy is more crucial than information integrity or accessibility.
Therefore, the correct option is C. disclosure, alteration, destruction.
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The question is incomplete. Your most probably complete question is given below:
A. misuse, exposure, destruction
B. authorization, non-repudiation, integrity
C. disclosure, alteration, destruction
D. confidentiality, integrity, availability
The diameter of a circle is 8 centimeters. a central angle of the circle intercepts an arc of 12 centimeters. what is the radian measure of the central angle?
Answers
Based on the calculations, the radian measure of the central angle is equal to 3 radians.
Given the following data:
Arc length = 12 centimeters.
Diameter = 8 centimeters.
Radius = diameter/2 = 8/2 = 4 centimeters.
How to calculate the length of the arc?Mathematically, the length of an arc formed by a circle can be calculated by using this formula:
S = rθ
Where:
r is the radius of a circle.θ is the angle measured in radians.S is the length of an arc.Substituting the given parameters into the formula, we have:
12 = 4θ
θ = 12/4
θ = 3 radians.
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The recommended percent p (in decimal form) of nitrogen (by volume) in the air that a diver breathes is given by p=105.07d+33, where d is the depth (in feet) of the diver. find the depth when the air contains 47% recommended nitrogen by (a) solving an equation, and (b) using the inverse of the function. round to the nearest tenth.
Answers
The depth of the diver when the air contains 47% recommended nitrogen is -0.3 ft
To answer the question, we need to know what an equation is.
What is an equation?An equation is a mathematical function that shows the relationship between two variables.
Given that he recommended percent p (in decimal form) of nitrogen (by volume) in the air that a diver breathes is given by p = 105.07d + 33, where d is the depth (in feet) of the diver.
Solving for the depth by solving the equationTo find the depth when the air contains 47% recommended nitrogen, we solve the equation with p = 47%
So, p = 105.07d + 33
47% = 105.07d + 33
0.47 = 105.07d + 33
0.47 - 33 = 105.07d
-32.53 = 105.07d
d = -32.53/105.07
d = -0.3096 ft
d ≅ -0.3 ft
Solving for the depth using the inverse functionSince p = 105.07d + 33
Making d subject of the formula, we have
d = (p - 33)/105.07
Substituting p = 47% = 0.47, we have
d = (0.47 - 33)/105.07
d = -32.53/105.07
d = -0.3096 ft
d ≅ -0.3 ft
So, the depth of the diver when the air contains 47% recommended nitrogen is -0.3 ft
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A current is induced in a wire by moving the wire through a magnetic field
Answers
Answer:
true
Explanation:
Which balanced equation represents a spontaneous radioactive decay
Answers
This fluid may be mixed with engine oil for recycling.
Answers
Answer:
Any petroleum product
Explanation:
Any petroleum product can be mixed with any other product for recycling- motor oil, gear oil, atf from cages, etc.
Which sentence best states two central ideas that support blancs argument
Answers
The sentence is that Private property limits poor people's access to essential natural resources, and competition lowers their wages.
What is argument?An argument is known to be any claim that is said to be aided by giving of examples.
Note that in the question above, The sentence that support the two central ideas of Blanc's argument in Passage 2 is that Private property limits poor people's access to essential natural resources, and competition lowers their wages.
See full question below
Which sentence BEST states two central ideas
that support Blanc's argument in Passage 2?
Individuals who are willing to work can work for
money, and contractors can decide how much to
pay them.
Some political economists argue that competition
is a good thing, and others believe that it harms
most people.
Middle class people make money by running small
businesses, and poor people work for others for
рау. .
Private property limits poor people's access to
essential natural resources, and competition lowers
their wages.
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Which two genes are most likely to be affected by a crossing over event
Answers
Answer:
yes
Explanation:
yessss
Select the correct answer from each drop-down menu. economic globalization forces local companies to compete with businesses. to compete, businesses strive to offer the best quality at the lowest price. as a result, products get , and more people are able to afford them.
Answers
Economic globalization forces local companies to compete with FOREIGN businesses. As a result, products get CHEAPER and more people are able to afford them.
What is Economic globalization?Economic globalization is known to be a term that connote an increasing mutual dependence of world economies due to the growing width of cross-border trade in terms of commodities and services, and others.
Note that the correct answer from each drop-down menu is that Economic globalization forces local companies to compete with FOREIGN businesses. As a result, products get CHEAPER and more people are able to afford them.
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As a cell grows, the surface area to volume ratio (sa:v) decreases. in order to maintain homeostasis, the cell must divide or die. the decreased sa:v ratio would affect all but
Answers
Cell division is the process of the parent cell forming daughter cells. The decreased SA: V ratio does not affect the stages involved in cell division.
What is SA: V?The surface area to volume ratio gives the size of the cell. The decrease in this ratio of the surface area and the volume causes the cell to divide or die. This ratio affects the rate of osmosis.
The decreased ratio also alters the signaling of the proteins and the cytoskeleton transport system of the cell, but the number of cell division phases is unaffected by the ratio.
Therefore, the cell division phases are unaffected by the SA: V ratio.
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Animals can be genetically engineered to fluoresce. these animals are used as models for studying cell processes. would you favor creating glow-in-the-dark small animals for sale as pets? why or why not?
Answers
Answer:
yes
Explanation:
because it is completely harmless to them. it is merely just a demonstration of science. it shows the miracle of how the human can do such cool things with such little and for a cheap price. yes some may think it is cruel but this process is carried out when they are still in the embryo. they can not feel anything. they do not develop any differently.... that is of course besides the coloration of them.
What was the most serious health concern caused by the poor sanitation and contaminated water supplies in 19th century tenements?
Answers
The most serious heath concern caused by the poor sanitation and contaminated water supplies in 19th century tenements is cholera epidemic.
What is Cholera?Cholera is a disease caused by bacteria, vibrio cholarea. The bacteria is present in water.
The symptoms of this disease are diarrhea and dehydration.
Thus, the most serious heath concern caused by the poor sanitation and contaminated water supplies in 19th century tenements is cholera epidemic.
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Sectional violence has been taking place in iraq between two islamic factions, the shi'ites and _____. taliban jihad sunnis
Answers
Answer:
Sunnis is the answer on OW.
Envision geometry 10-3 additional practice answers
Answers
Envision geometry 10-3 additional practice question is Find a pattern for the sequence in the image attached.
What is sequence pattern about?Note that when you use a pattern to find the next two terms in the sequence, such as 384, 192, 96, 48...
One can try different approach.
384 / 2 = 192
You will keep dividing till the last number.
Therefore the pattern for the sequence in the image attached is by dividing with 2.
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Two football players with mass 80 kg and 120 kg run directly toward each other with speeds of 8 m/s and 10 m/s respectively. if they grab each other as they collide, the combined speed of the two players just after the collision would be
Answers
The combined speed after the collision is -2.8 m/s.
How to get the combined speed?
Here we must have conservation of momentum, where momentum is the product between mass and velocity.
At the beginning, one of the players has a mass of 80kg and a velocity of 8m/s, so its momentum is:
P₁ = 80kg*(8m/s) = 640 kg*m/s
The other player has a mass of 120 kg and runs in the opposite direction at a speed of -10m/s (the negative sign is because of the direction). So its momentum is:
P₂ = 120kg*(-10m/s) = -1200 kg*m/s
The initial total momentum is:
P = P₁ + P₂ = 640 kg*m/s + ( -1200 kg*m/s) = -560 kg*m/s
At the end, the move together as a mass of (80kg + 120kg) = 200kg with a velocity V.
Such that the final total momentum is equal to the initial total momentum.
So we must have:
200kg*V = -560 kg*m/s
V = (-560 kg*m/s)/200kg = -2.8 m/s.
The combined speed after the collision is -2.8 m/s.
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What moral dilemma does this excerpt express pindarus
Answers
Which piece of evidence best supports the theme that power can corrupt people
Answers
Can you please show the different answer choices?
What best explains the label that the student should use on the y-axis? reaction rate, as the rate of forward and backward reactions become equal at equilibrium. concentration, as the concentration of reactants and products become equal at equilibrium. reaction rate, as the rate of forward reaction increases and the rate of backward reaction decreases with time. concentration, as the concentration of products decreases and that of reactants increases over time.
Answers
The answer is:
Concentrations, because the amounts of reactants and products remain constant after equilibrium is reached.
Why did nero persecute early christians? christians refused to trade with the romans. christians would not serve in the roman army. christianity was viewed as a threat to the empire. christianity preached against the laws of the emperor.
Answers
The option C is true, as the Roman leaders feared they were undermining authority.
What is persecution?Persecution is the act of harassing or oppressing a person or a group of people, especially because of their identity.
Many Christians were died or killed when the Roman government began to persecute Christians under Nero, because the Christianity was declared illegal at that time. It was believed that the Christian religion was the counter religion to the traditional Roman religion.
In Rome, the great fire was caused because of the persecution of the Christians and because of influence of Christianity in traditional Roman religion. The Christians were persecuted in the next hundred years by the upcoming emperors.
Thus, Option C is true that the Christianity was viewed as a threat to the empire.
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Answer: Its C
Explanation:
I did the test
With the exception of the inmate who encourages eliezer and his father to lie about their ages, how do most of the inmates that eliezer observes act toward the new arrivals to birkenau? click here to read the excerpt from elie wiesel's night. they provide good advice and other kinds of assistance to the new arrivals when they can. they encourage the new arrivals to keep their spirits up. they ignore the new arrivals. they appear unsympathetic to the new arrivals.
Answers
The inmates see Eliezer observes act toward the new arrivals to birkenau as They appear unsympathetic to the new arrivals.
What is unsympathetic ?
Unsympathetic is a term that connote the act of not sharing in the feelings of people or identifying with them in terms of joy or sadness.
Based on the excerpt, The inmates see Eliezer observes act toward the new arrivals to birkenau as They appear unsympathetic to the new arrivals.
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