Answer: the answer is 5%
Explanation: got it right on edge
Use trigonometric identities to verify each expression is equal. csc2(x) - 2csc(x)cot(x) + cot2(x) = tan2(x/2)
By definition of csc and cot,
csc²(x) - 2 csc(x) cot(x) + cot²(x) = …
… = 1/sin²(x) - 2 cos(x) / sin²(x) + cos²(x) / sin²(x)
Combining fractions,
… = (1 - 2 cos(x) + cos²(x)) / sin²(x)
Factorize the numerator and use the Pythagorean identity,
cos²(x) + sin²(x) = 1,
to rewrite the denominator.
… = (1 - cos(x))² / (1 - cos²(x))
Cancel a factor of 1 - cos(x).
… = (1 - cos(x)) / (1 + cos(x))
Using the half-angle identities,
sin²(x) = (1 - cos(2x))/2
cos²(x) = (1 + cos(2x))/2
it follows that
1 - cos(x) = 2 sin²(x/2)
1 + cos(x) = 2 cos²(x/2)
and so
… = (2 sin²(x/2)) / (2 cos²(x/2))
… = sin²(x/2) / cos²(x/2)
Finally, by definition of tangent,
… = tan²(x/2)
There is one christmas ballet that charms them all. But do you know who composed "the nutcracker"?.
There are different great composers. The composer of "the nutcracker" was Pyotr Tchaikovsky.
The Nutcracker, is known to be a Russian Shchelkunchik, a ballet often performed during Christmas. It was composed by Pyotr Tchaikovsky. This was known to be the last of his three ballets and its first performance was done on December 1892.
The Nutcracker is a ballet that centers around children and the beauty of childhood. It was also known to be the first experience of a professional dance performance.
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It should be noted that the composer of "the nutcracker is Pyotr Tchaikovsky.
According to this question, we are required the details about the nutcracker and the composer of it.
As a result of this, we can see that the Nutcracker is been composed by Pyotr Tchaikovsky and was one of his three ballets in 1892.Pyotr Tchaikovsky is been regarded as Russian Shchelkunchik, and this is been performed around Christmas time.
Therefore, the composer of "the nutcracker is Pyotr Tchaikovsky.
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A human fingernail has a hardness of approximately 2. 5. Which two minerals are softer than a human fingernail?.
Answer:
gypsum and talc
Explanation:
gypsum has 2 hardness and talc has 1
booker t. washington is noted for which of the following?
Answer: C. Establishing the Tuskegee Institute
Explanation:
Properties of protein is least likely to be affected by change in ph.
Answer:
Given
Rate of interest = 10% per annum
Principal for the first year = Rs 6000
Interest for the first year = Rs (6000 × 10 × 1) / 100
= Rs 600
Amount at the end of first year = Rs 6000 + Rs 600
= Rs 6600
Principal for the second year = Rs 6600
Interest for the second year = Rs (6600 × 10 × 1) / 100
= Rs 660
Amount for the second year = Rs 6600 + Rs 660
= Rs 7260
Therefore, compound interest for 2 years = final amount – (original) Principal
= Rs 7260 – Rs 6000
We get,
= Rs 1260
A natural number is less than the sum of its opposite and 8.
Answer:
3
Explanation:
A force of 5000n is applied outwardly to each end of a 5. 0-m long rod with a radius of 34. 0 cm and a young's modulus of 125 × 108 n/m2. The elongation of the rod is: phy101.
The elongation of the rod is [tex]5.51 \times 10^{-4}m[/tex]`
Young Modulus of a substanceThe young modulus of a substance is the ratio of stress to the strain of material.
[tex]Modulus = \frac{Stress}{Strain}\\ Modulus =\frac{Fl}{Ae}[/tex]
where:
F is the applied force = 5000Nl is the length of the rod = 5.0mA is the cross-sectional area = [tex]\pi r^2 = 0.34^2 * 3.14 =0.362984m^2[/tex]
Required
Extension of the rod "e"
Substitute the given parameters into the formula to have;
[tex]e=\frac{Fl}{A \gamma} \\e=\frac{5000 \times 5}{0.362984 \times 125,00,000}\\e=\frac{25000}{45,373,000}\\e= 5.51 \times 10^{-4}m[/tex]
Hence the elongation of the rod is [tex]5.51 \times 10^{-4}m[/tex]`
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a student is standing 20 feet away from the base of a tree
A number is equal to 3 times a smaller number. Also, the sum of the smaller number and 4 is the larger number. The situation is graphed on the coordinate plane below, where x represents the smaller number and y represents the larger number. On a coordinate plane, a line goes through (0, 4) and (2, 6) and another line goes through (1, 3) and (2, 6). Which two equations represent the situation?.
Answer:
C
Explanation:
I did the quiz
The two equations that represent the situation are y = 3x and y = x + 4. The correct option is c.
What is coordination?Coordinates are two numbers (Cartesian coordinates) or a letter and a number that point to a specific point on a grid known as a coordinate plane. A coordinate plane has four quadrants and two axes: x (horizontal) and y (vertical).
The horizontal and vertical distances from the two reference axes are used to describe the position of a point on a coordinate plane.
X and its values on the x coordinate represented the smaller integer. y and its values on the y coordinate represented the greater integer. The larger number is three times the smaller number. This implies that
y = 3x
Also, the larger number is the sum of the smaller and larger numbers. This implies that y = x + 4
Therefore, the correct option is c, y = 3x and y = x + 4.
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The question is incomplete. Your most probably complete question is given below:
y = one-third x and y = x minus 4 y = one-third x and y = x + 4 y = 3 x and y = x + 4 y = 3 x and y = x minus 4.
The total area of two square windows is 1,025 in. 2. Each side of the larger window is 5 in. Longer than the sides of the smaller window. How long are the sides of the smaller window? a = s2 13. 5 in. 20 in. 25 in. 31. 6 in.
List the angles of ∆ abc from smallest to largest. Ab = 20, bc = 12, ca = 10.
The angle of the triangle ABC from smallest to largest are approximately 22°, 27° and 131°.
The sides of the triangle are as follows;
AB = 20
BC = 12
AC = 10
Let's find ∠A using cosine rule,
a² = b² + c² - 2bc cos A
cos A = b² + c² - a² / 2bc
Therefore,
cos A = 10² + 20² - 12² / 2 × 10 × 20
cos A = 100 + 400 - 144 / 400
cos A = 356 / 400
cos A = 0.89
A = cos⁻¹ 0.89
A = 27.1267531173
∠A ≈ 27°
Using sine rule let's find ∠B
12 / sin 27 = 10 / sin B
cross multiply
12 sin B = 10 sin 27
sin B = 10 sin 27 / 12
sin B = 10 × 0.45399049974 / 12
sin B = 4.5399049974 / 12
B = sin⁻¹ 0.37832541645
B = 22.2299936087
∠B = 22°
Using sum of triangle theorem let's find ∠C
∠C = 180 - 27 - 22
∠C = 131°
The angles from smallest to largest are approximately 22°, 27° and 131°.
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A. Define dual enrollment.
B. What is another name for dual enrollment?
Which of the following is a potential drawback to using ninhydrin?.
Answer:
I need only 5 brainlisted please give me
Change the following to improper fraction or mixed number 35/8.
Answer:
4 3/8
Explanation: Step 1 - Find Whole Number.
35 / 8 = 4.3750 = 4
35 - (8 x 4) = 3 Step 2 - Find New Numerator
Which term refers to a secure systems ability to protect against.
Answer:
Hey mate!
Explanation:
Integrity refers to the protection of information from unauthorized modification or destruction. Ensuring integrity is ensuring that information and information systems are accurate, complete and uncorrupted.
pls mark me as brainliest!!
Which of the following is a limited quantity item?.
Answer:
Plzzz add options? then I will answer fully?
Explanation:
Nail polish ad Lithium batteries exist in Limited quantity items.
What is a limited quantity item?A limited quantity exists a phrase utilized in safe transportation and represents the highest quantity of packages to authorize the transport of dangerous goods.
Limited quantity items exist usually filled in boxes during transport.
Nail polish ad Lithium batteries have a chemical that is disastrous and hazardous if negligently packaged.
Thus, in close, Nail polish ad Lithium batteries exist as examples of Limited quantity items.
Complete question:
Which of the following is a limited quantity item
Nail polish
Matches
Lithium batteries
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What is one technique to help a person get proper sleep.
The nims management characteristic of information and intelligence management may include surveillance of disease outbreaks.
Answer: It's True
Hopefully it's right
Matthew has a loyalty card good for a discount at his local hardware store. The item he wants to buy is priced at $13, before discount and tax. After the discount, and before tax, the price is $12. 48. Find the percent discount.
Which of the following correctly completes the square for the equation below x^2+2x=19.
Answer:
Do we answer it?? What is the following?
What is the first step in solving the equation 3. 5 n + 6. 4 = 42. 5? add 6. 4 to each side of the equation. Subtract 6. 4 from each side of the equation. Multiply each side of the equation by 3. 5. Divide each side of the equation by 6. 4.
Answer:
3.5n+6.4=42.5
-6.4=-6.4
3.5n=36.1
————— (divide)
3.5=3.5
n=36.1/3.5 or 10.314
Explanation:
I'm confused by the question... is the question what is the first step of solving this equation?? and if it is, your answer is correct. which is subtract 6.4 for both sides.
Pauline chasse has just signed a lease agreement with landlord, wayne godbrey to rent a house he owns in delano. The lease states definite beginning (january 1, 2016) and ending (october 30, 2016) dates, and sets forth the rent amount and due dates and all additional property and personal information required in such a lease. Wayne hands a copy to pauline, but she notices that he has not signed it. When she comments about this to him, he tells her that signatures are not necessary since the lease is for less than a year. Which of the following is true of this situation?.
The correct option that is true as regards Wayne's situation about the lease is;
B; Leases of less than one year are not required to be in writing. However, if a lease IS in writing, then it must be signed by the lessor (in this case, Wayne).
The missing options are;
Under the Statute of Frauds in California,
A) leases of less than one year are not even required to be in writing, and therefore, signatures are not required.
B) Leases of less than one year are not required to be in writing. However, if a lease IS in writing, then it must be signed by the lessor (in this case, Wayne).
C) Leases of less than one year are not required to be in writing; but if there is a written lease, then it must be signed by both the lessee and lessor.
D) Because the property being leased is located in Northern California, a lease agreement is required to be both written and signed by the lessor if the lease period is for 6 months or more
Now, California has some principles that guide the regulation of the real estate industry and according to the California Principles of Real State, it has to be said that leases of less than one year are not required to be in writing. Now, even though the law stated that the consent of both parties are not enough to bind themselves in the lease agreement, it is recommended that just for the sake of keeping things legally binding as regards the agreement between both parties, then both parties may state it in written and the lessor must sign it.Read more about real estate statutes at; https://brainly.com/question/19655487
Which of the following best describes the long-term impact of using a renewable energy source?.
biomass releases great house gasses when burned and this is a long term impact of a renewable energy source.
The speaker of which statement would be best served by joining an interest group?.
Put the plot events from animal farm in the correct order.
Answer:
how can u put more detail please
Suppose a 10 ml beaker and a 100 ml beaker are both filled with water, and that the water in both beakers is the same temperature. Which statement below about the water in the two beakers is true?.
Which of the following processes requires molecular o2 as a reactant?.
The process that requires molecular oxygen as a reactant is: the Electron Transport System.
The Electron Transport System consists of a number of electron transporters in the inner mitochondrial membrane that are charged with moving electrons from the NADH and FADH₂ to molecular oxygen.
The final result of the electron transport system is the reduction of oxygen to water.
So, of all of the options provided, that which requires molecular oxygen as a reactant is the electron transport system.
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These are the options:
(a) Glycolysis
(b) Lactic acid production
(c) Electron transport system
(d) Fermentation
(e) None of the above.
which statement best describes how the author uses language in the passage? the author uses metaphor and simile to compare autumn to various elements found in nature. the author uses apostrophe to help the reader form an objective, detached view of autumn. the author uses a simple, logical style to explain to the reader what autumn is really like. the author uses imagery and personification to make autumn seem friendly and generous to the reader.
There are different kinds of Language. The statement that best describes how the author uses language in the passage is that the author uses imagery and personification to make Autumn seem friendly and generous to the reader.
Personification is simply known to be used when one wants to use human qualities on an object e.g. Close bosom-friend of the maturing sun
Imagery is simply known to be used also to describe something using things that people don't know especially those that have not seen or heard of it. e.g. With fruit the vines that round the thatch-eves run.
See full question below
Read the passage from "To Autumn."
Season of mists and mellow fruitfulness,
Close bosom-friend of the maturing sun;
Conspiring with him how to load and bless
With fruit the vines that round the thatch-eves run;
To bend with apples the moss'd cottage-trees,
And fill all fruit with ripeness to the core
Which statement best describes how the author uses language in the passage?
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Answer:
A.
Explanation:
The author uses metaphor and simile to compare autumn to various elements found in nature.
Which of the following is a criticism of piaget's cognitive development theory?.
Answer:
ANSWER IS
Explanation:
The cognitive stages are not as fixed or rigid as Piaget proposed. ... Piaget may have underestimated the role that parents and other people play in a child's intellectual development. Some psychologist believe that we can 'hothouse' children so they develop at a quicker rate. Piaget ignored different kinds of thinking.
Accelerated mammary gland development in intellectually disabled females.
A mammary gland simply means the gland that's located in the female's breasts and it's responsible for lactation.
Your information is incomplete. Therefore, an overview of the topic will be given. It should be noted that males and females have glandular tissue within their breasts.
In females, the glandular tissues develop after puberty. The mammary glands are responsible to produce milk. It is typically regulated by hormones.
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