The correct coordinates of N' is (-3, -4).
What is Rotation:Rotation of coordinates involves changing the orientation of a point or object in a plane about a fixed point called the center of rotation.
This process can be accomplished by applying a set of transformation rules to the original coordinates of the object.
When a point (x, y) rotated about the origin at 180° then the coordinates resultant point are (-x, -y).
Here we have
Point N has coordinates (3, 4)
Given that the point N is rotated about 180°
As we know when the point (x, y) rotated about the origin at 180° then the resultant point is (-x, -y)
Here (3, 4) is rotated about 180°
The resultant point N' is (-3, -4)
Therefore,
The correct coordinates of N' is (-3, -4).
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and apply it to an important integral in the study of Probability and Statistics. You can find it in the textbook on page 548. Theorem 2 (Comparison Theorem:) Suppose
f
and
g
are continuous functions with
f(x)≥g(x)≥0 for x≥a.
1. If
∫ a
[infinity]
f(x)dx
is convergent, then
∫ a
[infinity]
g(x)dx
is also convergent. 2. If
∫ a
[infinity]
g(x)dx
is divergent, then
∫ a
[infinity]
f(x)dx
is also divergent. The following improper integral is an important object in Probability and Statistics. You can find more about it at https://en.wikipedia.org/ wiki/Normal_distribution.
I=∫ 2
[infinity]
e −x 2
dx
It is important to know if
I
is a finite value, that is, if the improper integral is convergent. However, since we cannot find an antiderivate of the integrand, we cannot directly evşuate the integral. So we are going to determine the convergence/divergense of this integral using Comparison Theorem stated above. 1. (1 mark) Justify the following inequality
e −2x
≥e −x 2
for all x≥2
2. (1 mark) Evaluate
∫ 2
[infinity]
e −2x
dx
3. (3 marks) Determine if
I
is convergent or divergent. Your argument should use Comparison Theorem and the previous results from 1 and 2 correctly.
I is convergent.
The Comparison Theorem is an important tool in the study of Probability and Statistics, as it allows us to determine the convergence or divergence of improper integrals without directly evaluating them. In this case, we are asked to determine the convergence or divergence of the improper integral I=∫ 2 [infinity] e −x 2 dx using the Comparison Theorem.
1. To justify the inequality e −2x ≥e −x 2 for all x≥2, we can take the natural logarithm of both sides of the inequality to get -2x ≥ -x^2. Since x≥2, we can divide both sides of the inequality by -x to get 2 ≤ x, which is true for all x≥2. Therefore, the inequality e −2x ≥e −x 2 is true for all x≥2.
2. To evaluate ∫ 2 [infinity] e −2x dx, we can use the substitution u=-2x, du=-2dx. This gives us ∫ 2 [infinity] e −2x dx = ∫ -4 [-infinity] (1/2)e^u du = (1/2)(-e^u)|-4 [-infinity] = (1/2)(-e^-4 + e^[infinity]) = (1/2)(-e^-4 + 0) = (1/2)e^-4.
3. To determine if I is convergent or divergent, we can use the Comparison Theorem. Since e −2x ≥e −x 2 for all x≥2, and ∫ 2 [infinity] e −2x dx is convergent, then ∫ 2 [infinity] e −x 2 dx is also convergent by the Comparison Theorem. Therefore, I is convergent.
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Find m<ADB
a) 59°
b) 44°
c) 13°
d) 33°
Answer:
A) 59°
Step-by-step explanation:
m<ADC is a right angle, therefore it is 90°
so that means you can now subtract the angle that you already know [31°] from it to get the angle that is left over, m<ADB
90°-31°= 59° (subtracting m<ADC [90°] from m<BDC [31°] leaves your remaining angle m<ADB [59°]
The marked price of an article is Rs, 2,500. If 40% discount is allowed and the 13% VAT is Charged, Find the selling price of the article with VAT?
Answer:
The answer to your problem is, 1130
Step-by-step explanation:
Calculation of work:
discount=40% of 2500
=40/100 x 2500
=1000
discount price=1000
VAT = 13% of 1000
How to find /\:
Percetage graph:
=13/100*1000
=130
price=1000+130
=1130.
Thus, the answer to your problem is, 1130.
PLEASE HELP!!!!!!!!!!!!!!
The perimeter of the base is 32 cm.
The area of the base is 48 cm².
The total surface area of the triangular prism is 1184 cm².
How to find the surface area of triangular prism?The diagram above is a triangular prism. Therefore, let's find the perimeter of the base, area of the base and surface area of the triangular prism.
Hence,
perimeter of the base = 10 + 10 + 12
perimeter of the base = 20 + 12
perimeter of the base = 32 cm
Area of the base = 1 / 2 bh
where
b = baseh = heightTherefore,
Area of the base = 1 / 2 × 12 × 8
Area of the base = 48 cm²
Hence,
total surface area of the triangular prism = bh + l(s₁ + s₂ + s₃)
total surface area of the triangular prism = 12(8) + 34(10 + 10 + 12)
total surface area of the triangular prism = 96 + 34(32)
total surface area of the triangular prism =96 + 1088
total surface area of the triangular prism = 1184 cm²
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56 = k - 42
What does k equal
Given cot A = 21/20 and that angle A is in Quadrant I, find the exact value of A in simplest radical form using a rational denominator.
Answer fast for 100pt
Answer:
We know that cot A = adjacent side / opposite side = 21/20.
Let x be the length of the adjacent side and y be the length of the opposite side.
Using the Pythagorean theorem, we have:
x^2 + y^2 = (20k)^2, where k is some positive constant.
Since angle A is in Quadrant I, x is positive and y is positive. Thus, we can take the square root of both sides to get:
x + y = 20k.
Now, we can use the fact that cot A = adjacent side / opposite side = 21/20 to get:
x/y = 21/20.
Multiplying both sides by y, we get:
x = (21/20)y.
Substituting this into x + y = 20k, we get:
(21/20)y + y = 20k
Simplifying, we get:
(41/20)y = 20k
y = (20k)/(41/20) = (400k)/41
Now, we can use the Pythagorean theorem to find x:
x^2 + y^2 = (20k)^2
(21/20)y^2 + y^2 = (20k)^2
(441/400)y^2 = (20k)^2
y^2 = (400/441)(20k)^2
y = (20k/441)sqrt(441 x 20)
y = (20k/21)sqrt(20)
Therefore, angle A in simplest radical form using a rational denominator is given by:
tan A = y/x = [(20k/21)sqrt(20)] / [(21/20)y] = sqrt(20)/21
A = arctan(sqrt(20)/21)
The meausre of two angles are (10x+48) and (18x-34). What is the value of x if these angles are congrunt?
Answer:
x = 10.25
Step-by-step explanation:
congruent angles are equal , then
18x - 34 = 10x + 48 ( subtract 10x from both sides )
8x - 34 = 48 ( add 34 to both sides )
8x = 82 ( divide both sides by 8 )
x = 10.25
A biassed coin is tossed a total of n+ m times and shows Heads with probability p on each toss. Let S, be the number of heads in the first n coin tosses, and Tm be the number of heads in the last m coin tosses. You may assume that m (d) What is the distribution of Sn +Tm? Prove this.
The distribution of Sn + Tm is a binomial distribution with parameters (n+m, p).
This can be proved using the fact that the sum of independent binomial random variables follows a binomial distribution with the sum of the number of trials and the same probability of success.
Let X ~ Binomial(n, p) and Y ~ Binomial(m, p) be independent random variables representing the number of heads in the first n coin tosses and the last m coin tosses, respectively.
Then, the sum of X and Y, Z = X + Y, follows a binomial distribution with parameters (n+m, p).
The probability mass function of Z can be written as:
P(Z = k) = P(X + Y = k) = ∑ P(X = i) * P(Y = k-i) for i = 0 to k
Since X and Y are independent, we can write:
P(Z = k) = ∑ P(X = i) * P(Y = k-i) = ∑ (n choose i) * p^i * (1-p)^(n-i) * (m choose k-i) * p^(k-i) * (1-p)^(m-k+i)
Simplifying the above equation, we get:
P(Z = k) = (n+m choose k) * p^k * (1-p)^(n+m-k)
Therefore, Z ~ Binomial(n+m, p).
As a result, the distribution of Sn + Tm has the parameters (n+m, p) of a binomial distribution.
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A meteorologist analyzes data about a rainstorm in an area starting at 10 p.m. and uses the linear model u = 0.75t + 1.5 of rain accumulation, , in inches, hours after midnight when t > 0 Which best describes the value 1.5 to represent the total amount
A slope and the change in the total amount of rain, in Inches per hour
B slope and the initial amount of rain, in inchesat midnight
C y-intercept and the change in the total amount of rainin inches per hour
D y-Intercept and the initial amount of rain, in inches at midnight
The option that best describes the value 1.5 in the linear equation; u = 0.75·t + 1.5 is option D
D. y-intercept and the initial amount of rain, in inches at midnight
What is a linear equation?A linear equation is an equation of the form; y = m·x + c, where, m is the slope, and c is the y-intercept of the graph of the equation.
The time at which the analysis of the rainstorm by the meteorologist starts = 10 p. m.
The linear model for the accumulation of rain is; u = 0.75·t + 1.5
The number of hours, t after midnight where; t > 0
The model for the accumulation of rain, indicates that the coefficient of t, which is 0.75 is the rate at which the rain accumulates in inches per hour, therefore, the rain accumulates at a rate of 0.75 inches per hour
The constant term in the linear equation, u = 0.75·t + 1.5, which is the constant, 1.5, is the y-intercept of the graph of the equation.
The y-intercept is the value of the equation, when the input value, the time, t = 0, which is the time at midnight
The 1.5 therefore, indicates that the y-intercept, and the level of the accumulated rain at midnight, when the time, t = 0, which is the initial amount of rain at midnight is 1.5 inches.
The correct option is therefore;
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Of 35 cars, one-fifth are blue and the rest red. How many are red?
Answer:
28 are red
Step-by-step explanation:
(1/5) are blue. The rest are red, which would be 4/5 of the total. (1/5)+(4/5) = 1 or 100%
(1/5)*(35) = 7 are blue
(4/5)*(35 = 28 are red
--------------------
Total = 35 cars
Rick saved $400. On Rick's birthday, his brother Jon gave him
1/8 of savings. Including the gift, Rick has $475. Write and solve
an equation to determine Jon's savings before he gave Rick the
gift.
Jon's savings before he gave Rick the gift was $600. An equation to represent this situation: 400 + (1/8)x = 475
To determine Jon's savings before he gave Rick the gift, we can use an equation. Let's represent Jon's savings with the variable x.
According to the problem, Jon gave Rick 1/8 of his savings, which is equal to (1/8)x. We also know that Rick originally had $400 and after receiving the gift, he had $475. So we can write an equation to represent this situation:
400 + (1/8)x = 475
Now, we can solve for x to find out Jon's savings before he gave Rick the gift. First, let's isolate the variable on one side of the equation:
(1/8)x = 475 - 400
(1/8)x = 75
Next, we can multiply both sides of the equation by 8 to get rid of the fraction:
x = 75 * 8
x = 600
So, Jon's savings before he gave Rick the gift was $600.
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What is 2 times the square root of 48 - the square root of 3
Answer: 12.124355653
Step-by-step explanation: I did the math on a calculator
Segment in a circle: XY=
find the measure kyc pls its urgent
The measure of angle KYC, considering the concept of vertical angles, is given as follows:
m < KYC = 69º.
What are vertical angles?Vertical angles are angles that are opposite by the same vertex on crossing segments, hence they share a common vertex, thus being congruent, meaning that they end up having the same angle measure.
The vertical angles for this problem are given as follows:
<KYC and 69º.
As they are opposite by the vertex at the crossing of the two diagonal segments for this problem.
Hence the measure of angle KYC is given as follows:
m < KYC = 69º.
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[tex][(-2xyx^{2} )x^{3}]x^{2}[/tex]
Exponent laws The abbreviated formula is -2x7y.
What exponent law is made simpler?This leads to another exponent rule called the Power Rule for Exponents. A power of a power can be made simpler by multiplying the exponents while leaving the base fixed. In this instance, (23)5 equals 215. For any positive number x and integers a and b, (xa)b=xa b holds true.
What are the eleventh grade exponent laws?Exponent laws comprise: Rule of the product of powers: Add the powers together when multiplying like bases. Take off the powers when separating like bases according to the quotient of powers rule. Rule of the power of powers: Add all the powers together when raising a power by another exponent.
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Complete question:
Find the Exponent law of the given formula [tex][(-2xyx^2)x^3]x^2[/tex] .
Raphael is flying a small plane that has a weight limit of 1,200 pounds. The plane is already carrying a combined weight of 800 pounds. Each bag weighs 75 pounds. Write an inequality to find the number of bags b that can be taken on board.
Answer: yes
Step-by-step explanation:
yes because it is less than or equal to seeing that the dominoes reach the whole room
Please help!
Simplify arctan1/3 + arctan2/3
(round to the nearest degree).
a. 38°
b. 72°
c. 52°
The simplified expression is 45°, which is closest to option a. 38°.
What is lines and angles?Lines are one-dimensional geometrical objects that extend infinitely in both directions. Angles are formed when two lines intersect, and they measure the amount of rotation between the lines.
We can use the formula:
arctan(x) + arctan(y) = arctan[(x + y) / (1 - xy)]
to simplify the expression.
Setting x = 1/3 and y = 2/3, we have:
arctan(1/3) + arctan(2/3) = arctan[(1/3) + (2/3) / (1 - (1/3)(2/3))]
= arctan(1)
= 45°
Therefore, the simplified expression is 45°, which is closest to option
a. 38°.
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a bird flies 961 km in 24 hours what was the birds velocity
The velocity of the bird is approximately 40.04 km/hour.
What is velocity ?
Velocity is a measure of the rate at which an object changes its position in a particular direction. It is a vector quantity, which means that it has both a magnitude (speed) and a direction.
To find the velocity of the bird, we can use the formula:
velocity = distance/time
Given that the bird flies 961 km in 24 hours, we can substitute these values into the formula:\
velocity = 961 km / 24 hours
Simplifying this expression, we get:
velocity = 40.04 km/hour (rounded to two decimal places)
Therefore, the velocity of the bird is approximately 40.04 km/hour.
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what would happen if you put your hand on the stove and got burnt, but put your hand back on 5 more times just to make sure it's actually hot?
If you put your hand on a hot stove and got burnt, it is a natural response to remove your hand from the stove to prevent further injury. However, if you choose to repeatedly put your hand back on the stove even after being burnt, you will continue to experience pain and potentially cause further damage to your skin and tissues.
Repeatedly exposing yourself to the source of the burn will not change the fact that it is hot and causing damage to your skin. In fact, each time you touch the hot surface, you are likely to make the burn worse, as the heat will continue to damage your skin and tissues.
Additionally, repeated exposure to the hot stove may lead to nerve damage, which can result in a loss of sensation in your hand, making it harder to recognize when you are in danger of burning yourself in the future.
It is important to listen to your body's natural responses to pain and remove yourself from harmful situations. In the case of a burn, it is best to seek immediate medical attention and follow proper first aid procedures to minimize damage and promote healing.
During Cristiano tenure for the first two seasons (2014_15&2015_16) he made 251 passes each. Estimate to find about how many passes he made in the third Year
Cristiano is said to have racked up around 300 assists in his third year in power.
This estimate is based on the fact that Cristiano has been a prolific passer in his whole career and has frequently improved every season. Assuming he's maintained similar level of assists in his third season and Cristiano has improved season after season, his tally assists in his third year is likely higher than his average of 251 per season.
That's why it is safe to assume that Cristiano completed around 300 passes in his third year, a significant improvement over the previous 2 years. It increase in assists is likely due to Cristiano's increased confidence and comfort in the team, as well as learning more about the club and their plan. All of this together would allow Cristiano to make more passes and become a more efficient player overall.
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Work out the area of this circle.
Take it to be 3. 142 and give your answer to 2 decimal places.
R: 9 m
The area of the circle is 63.62 square meters
To work out the area of a circle, we need to use the formula A = πr^2, where A is the area of the circle, π is a mathematical constant approximately equal to 3.142, and r is the radius of the circle.
In this problem, we are given the diameter of the circle, which is the distance across the circle passing through its center. The radius is half of the diameter, so we can find it by dividing the diameter by 2.
In this case, the diameter is 9 meters, so the radius is 9/2 = 4.5 meters. We then substitute this value into the formula:
A = πr^2
A = 3.142 x (4.5)^2
A = 3.142 x 20.25
A = 63.6175
A ≈ 63.62 square meters
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The given question is incomplete, the complete question is:
Work out the area of the circle where diameter is 9 meter
Take π it to be 3.142 and give your answer to 2 decimal places.
Multiply. 8x2 y4 (−3x6 y2 + 4y)
answers:
5x8 y6 + 12x2 y5
−24x8 y6 + 32x2 y5
−24x12 y8 + 32y4
8x9 y7 + 8x3 y6
Answer:
-24x^8y^6+32x^2y^5
Step-by-step explanation:
Ben reads 6 books in ten days what fraction of a book did Ben read each day
Find the minimum and maximum values of z=7x+3y , if possible, for the following set of constraints.
4x + 6y ≥ 24
x + 6y ≥ 12
x ≥ 0, y ≥ 0
Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The minimum value is (Round to the nearest tenth as needed.) B. There is no minimum value.
The minimum value is 24
To find the minimum value of z=7x+3y, we must use the given constraints to determine the values of x and y.
First, solve 4x + 6y ≥ 24. Rearrange the equation to solve for x: x ≥ (24 - 6y) / 4.
Next, solve x + 6y ≥ 12. Rearrange the equation to solve for y: y ≥ (12 - x) / 6.
Using the two equations, determine the possible values of x and y:
If y = 0, then x = 6
If x = 0, then y = 2
Substitute the possible values of x and y into the equation z = 7x + 3y and find the minimum value:
z = 7(6) + 3(0) = 42
z = 7(0) + 3(2) = 24
Therefore, the minimum value of z is 24.
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Use the word bank and fill in the blanks. (Use each word only once) Word Bank: natural number, whole number, integer, rational, irrational
A company sells a regular version of software for $17.45 and a deluxe version for $21.95. The company gives a bonus to any salesperson who sells at least
100 units and has at least $2000 in total sales. Complete parts a through c below.
a. Write a system of inequalities that describes the requirements a salesperson must meet to receive the bonus. Let R represent the number of regular
units sold and D represent the number of deluxe units. Choose the correct system of inequalities below.
OA.
O C.
O A.
AD
R+Dz 100
17.45R+21.95D z 2000
120-
R+Dz 100
17:45R+21.95D = 2000
b. Solve the system by graphing. Let the horizontal axis be the regular version and the vertical axis be the deluxe version. Choose the correct graph
below.
B.
AD
B.
120-
O D.
O C.
AD
R+D≤ 100
17.45R+21.95D ≤ 2000
120-
R+D≤ 100
17.45R+21.95D z 2000
Q
D.
AD
120-
The graph of the system of inequalities is a circle with center (0,0) and radius of 100 units for the regular version and 2000/21.95 units for the deluxe version.
What is inequality?Inequality in math is a mathematical statement that states two expressions are not equal. It can be written using symbols such as <, >, or ≠. Inequality statements are used to compare values or expressions and to describe ranges of values that satisfy certain conditions.
The salesperson must sell at least 100 units of either the regular or deluxe version and their total sales must be at least $2000 in order to receive the bonus.
The company offers a bonus to salespeople who can meet certain sales goals. This encourages salespeople to be more motivated to sell the product and to increase their overall sales. It also helps the company increase their profits by providing incentives for salespeople to increase their sales. By offering the bonus, the company is able to attract more salespeople who are willing to work hard and reach their sales goals in order to receive the bonus. This allows the company to increase their market share and their profits.
The bonus also helps to retain existing salespeople who might otherwise be tempted to leave the company. By offering the bonus, the company is able to reward loyal salespeople who have consistently performed well and have contributed to the company's success. This helps the company to maintain a stable and productive sales team, which is beneficial for the company's long-term success.
Overall, offering a bonus to salespeople who meet certain sales goals is a beneficial strategy for the company. It encourages salespeople to be more motivated and increase their sales, while also helping the company to attract and retain quality salespeople. This helps the company to grow and increase their profits in the long run.
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Leona has a jar containing some sweets, of which 90 are pear drops. She takes a random sample of 70 sweets from the jar and finds that 22 of these are pear drops. She then puts the 70 sweets back into the jar. Work out an estimate for the total number of sweets in the jar. Give your answer to the nearest integer.
Answer:
We can use the concept of proportion to estimate the total number of sweets in the jar.
Let's represent the total number of sweets in the jar by "x". We know that 90 of these are pear drops. So the proportion of pear drops in the jar is 90/x.
Leona takes a random sample of 70 sweets from the jar and finds that 22 of these are pear drops. So the proportion of pear drops in the sample is 22/70.
We can assume that the proportion of pear drops in the sample is roughly equal to the proportion of pear drops in the jar. Therefore, we can set up a proportion and solve for "x":
90/x = 22/70
Cross-multiplying, we get:
22x = 90 * 70
Dividing both sides by 22, we get:
x = 90 * 70 / 22
Using a calculator, we get:
x ≈ 287
Therefore, an estimate for the total number of sweets in the jar is 287, rounded to the nearest integer.
Answer:
We can use the concept of proportion to estimate the total number of sweets in the jar.
Let's represent the total number of sweets in the jar by "x". We know that 90 of these are pear drops. So the proportion of pear drops in the jar is 90/x.
Leona takes a random sample of 70 sweets from the jar and finds that 22 of these are pear drops. So the proportion of pear drops in the sample is 22/70.
We can assume that the proportion of pear drops in the sample is roughly equal to the proportion of pear drops in the jar. Therefore, we can set up a proportion and solve for "x":
90/x = 22/70
Cross-multiplying, we get:
22x = 90 * 70
Dividing both sides by 22, we get:
x = 90 * 70 / 22
Using a calculator, we get:
x ≈ 287
Therefore, an estimate for the total number of sweets in the jar is 287, rounded to the nearest integer.
Step-by-step explanation:
Example: According to the Census Bureau of the people 21 to 64 years old, 12 3% are not high school graduates, 27.8% have graduated high school, 30.6% have some college, 16.9% have a bachelor's degree, and 8.8% have an advanced degree. What words in this paragraph look like different answers to one question? Perhaps the question is something about your education?
According to the Census Bureau, of the people 21 to 64 years old, 12.3% are not high school graduates, 27.8% have graduated high school, 30.6% have some college, 16.9% have a bachelor's degree, and 8.8% have an advanced degree. The words that look like different answers to one question are "not high school graduates," "graduated high school," "some college," "bachelor's degree," and "advanced degree."
These words all describe different levels of education and could be potential answers to a question about a person's education level. The paragraph describes the educational attainment of people between the ages of 21 and 64. The different percentages represent the proportion of individuals in each education category.
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Multiply each term by the LCD. (A[x(x-4)(x-3)])/(x)+(B[x(x-4)(x-3)])/((x-4))+(C[x(x-4)(x-3)])/((x-3))
The final expression after multiplying each term by the LCD is (A+B+C)x^3 - (4A+3B+4C)x^2 + (12A+3BC)x - 12AC.
To multiply each term by the LCD, we need to first find the LCD of the given expression. The LCD of the expression is the product of the denominators, which is x(x-4)(x-3).
Now, we can multiply each term by the LCD to get rid of the denominators:
A[x(x-4)(x-3)]/(x) * x(x-4)(x-3) = A(x-4)(x-3)
B[x(x-4)(x-3)]/((x-4)) * x(x-4)(x-3) = B(x)(x-3)
C[x(x-4)(x-3)]/((x-3)) * x(x-4)(x-3) = C(x)(x-4)
Now, we can combine the terms to get the final expression:
A(x-4)(x-3) + B(x)(x-3) + C(x)(x-4) = (A+B+C)x^3 - (4A+3B+4C)x^2 + (12A+3BC)x - 12AC
So, the final expression after multiplying each term by the LCD is (A+B+C)x^3 - (4A+3B+4C)x^2 + (12A+3BC)x - 12AC.
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In the diagram, BC = 9. Find AB and AC by dragging the correct distance to its corresponding side?
Answer is: AC= 9[tex]\sqrt{3}[/tex] Units, AB = 18 units.
What is triangle?Triangles have three interior angles that add up to 180 degrees, and they can be classified based on the lengths of their sides and the measures of their angles.
In ΔABC, angle C is right angle,
so the triangle is right angle triangle;
tan30° = BC/AC
[tex]\frac{1}{\sqrt{3} }[/tex] = 9/AC
AC= 9[tex]\sqrt{3}[/tex] Units
and
Sin 30° = BC/AB
1/2 = 9/AB
AB = 18 units
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