2À candy company claims that its jelly bean mix contains 15% blue jelly beans. Suppose that the candies are packaged at random in small bags containing about 200 jelly beans. What is the probability that a bag will contain more than 20% blue jelly beans?
We find that P(Z > 2.46) is roughly 0.007 using a calculator or a basic normal distribution table. The probability that a bag will contain more than 20% blue jellybeans is therefore approximately 0.007 or 0.7%.
Define probability?The probability of an event is the ratio of good outcomes to all other potential outcomes. The number of successful outcomes for an experiment with 'n' outcomes can be expressed using the symbol x.
Here in the question,
We can utilise the binomial distribution formula to resolve this issue. In a bag of 200 jelly beans, let X represent the proportion of blue jelly beans. Following that, X exhibits a binomial distribution with parameters of n = 200 and p = 0.15, where p is the likelihood of drawing a blue jellybean.
The formula for determining the likelihood of finding more than 20% blue jellybeans in a bag is:
P (X > 0.2 × 200) = P (X > 40)
Since n is large (200) and p is not too near to 0 or 1, we can utilise the usual approximation to the binomial distribution. We may determine the equivalent mean and standard deviation of the normal distribution by using the mean and variance of the binomial distribution:
μ = np = 200 × 0.15 = 30
σ = √ (np(1-p)) = √ (200 × 0.15 × (1-0.15)) = 4.07
Then, we can standardize the random variable X as:
Z = (X - μ) / σ
So, we have:
P(X > 40) = P((X - μ) / σ > (40 - μ) / σ)
= P(Z > (40 - 30) / 4.07)
= P(Z > 2.46)
We find that P(Z > 2.46) is roughly 0.007 using a calculator or a basic normal distribution table. The likelihood that a bag will contain more than 20% blue jellybeans is therefore approximately 0.007 or 0.7%.
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Find the number that makes the ratio equivalent to 36:84?
Answer: 3:7
Step-by-step explanation: since the simplest form of the fraction 36/84 is 3/7 that means 36:84 in simplest form is 3:7.
Write the following expression without negative exponents.
[tex]\cfrac{5^7}{5^{-13}}\times\left( \cfrac{4^3}{7^{-2}} \right)^{-2}\implies 5^7\cdot 5^{13}\times \left( \cfrac{7^{-2}}{4^3} \right)^{+2}\implies 5^7\cdot 5^{13}\times\left( \cfrac{7^{-4}}{4^6} \right) \\\\\\ 5^{7+13}\times\left( \cfrac{1}{4^6\cdot 7^4} \right)\implies \cfrac{5^{20}}{4^6\cdot 7^4}\implies \cfrac{95367431640625}{9834496}[/tex]
find the value for each variable in simplest radical form
The values are;
1. x = 6 ,y = 6√2
2. x = 9√2, y = 18
3. x = y = 9
4. x = 12, y = 12√2
5. x = y = 4√2
6. x = y =( 3√2)/2
What trigonometric ratio?Trigonometric Ratios are defined as the values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle.
There are some special angles , in which 45 is part of them.
sin 45 = 1/√2
cos 45 = 1/√2
tan 45 = 1
1. x = 6 ( isosceles triangle)
y = 6 × √2 = 6√2
2. x = 9√2 ( isosceles triangle)
y = 9√2 × √2 = 9×2 = 18
3. x = 9√2/√2 = 9
x = y = 9 ( isosceles triangle)
4. x = 12 ( isosceles triangle)
y = 12×√2 = 12√2
5. x = 8/√2 = 8√2/2 = 4√2
x = y = 4√2( isosceles triangle)
6. x = 3/√2 = (3√2)/2
x = y =( 3√2)/2 ( isosceles triangle)
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1
2 3
5
1
Jared takes 10 minutes to wash dishes and 20
minutes to write a paper. Jason takes 10 minutes to
wash dishes and 30 minutes to write a paper. Which
of the following statements is correct?
Summary
O Jared has a comparative advantage in washing
dishes.
O Jared has absolute advantage in writing the
paper.
Back
O Jared has absolute advantage in washing the
dishes.
O Jared has a comparative advantage in writing a
paper.
Next
The correct answer is Jared has absolute advantage in washing the dishes.
In the year 2000, the population of Mexico was about 100 million, and it was growing by 1.53% per year. At this growth rate, the function f(x) = 100(1.0153)x gives the population, in millions, x years after 2000. Using this model, in what year would the population reach 106 million? Round your answer to the nearest year.
Answer:
2004
Step-by-step explanation:
A housewife along with group of ladies sold bags of different sizes. She earns a profit of 25 rupees on a purce and incures a loss of Rs 20 on a vanity bag sold
how many purces must she sell to have neither profit nor loss if the number of vanity bags sold is 750
pls answer quickly
whoever answers first will be marked brainliest
In linear equation, Her profit is rupees 4000.
No. of purses she must sell to have neither profit nor loss is 600 nos.
She made loss of rupees 2135.
What is a linear equation in mathematics?
A linear equation is an algebraic equation of the form y=mx+b. m is the slope and b is the y-intercept. The above is sometimes called a "linear equation in two variables" where y and x are variables.
The housewife earns,
Profit on 1 purse = 25 rupees
Loss on 1 vanity bag = 20 rupees
So,
Profit on 1000 purses = 25*1000 rupees
= 25000 rupees
Loss on 1050 purses = 20*1050 rupees
= 21000 rupees
Here, Profit > Loss
So,
Total profit = 25000-21000 rupees
= 4000 rupees
i) Her profit is 4000 rupees.
If no. of vanity bags sold = 750 nos.
She made loss of = 750*20 rupees
= 15000 rupees
ii) No. of purses she must sell to have neither profit nor loss
= 15000/25 nos.
= 600 nos.
Profit on selling 325 purses = 325*25 rupees
= 8125 rupees
Loss on selling 513 vanity bags = 513*20 rupees
=10260 rupees
Here, Profit < Loss
So,
iii) She made loss of = 10260-8125 rupees
= 2135 rupees
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The complete question is -
A housewife along with a group of ladies sold bags of different sizes. She earns a profit of 25 on a purse and a loss of 20 on a vanity bag sold. i. She received an order of 1050 vanity bags and 1000 purses. What is her profit or loss? ii. How many purses must she sell to have neither profit nor loss, if the number of vanity bags sold is 750? iii. How much profit/loss did she make in selling 325 purses and 513 vanity bags?
A certain coin is a circle with diameter 18 mm. What is the exact area of either face of the coin in terms of pie?
Answer:
[tex]81\pi[/tex] [tex]mm^2[/tex]
Step-by-step explanation:
Let's recall the formula for the area of a circle:
[tex]A = \pi r^2[/tex]
We are given the diameter, but the formula uses the radius. Since the radius is equal to one-half of the diameter, we can find the radius by doing this:
[tex]r = \frac{1}{2}d=\\\\r=\frac{1}{2}(18)= \\\\r=9[/tex]
Now that we've found the radius is 9 mm, let's substitute the values into the formula for the area of a circle. We have:
[tex]A = \pi r^2=\\A=\pi (9^2)=\\A=\pi (81)=\\A=81\pi[/tex]
So, we've found that the exact area, in terms of pi, of either face of the coin is [tex]81\pi[/tex] [tex]mm^2[/tex].
To find the area of the coin/a circle use this equation:
(a = area, r = radius, d = diameter)
[tex]\text{a = r}^2[/tex]
So we need to do for the radius.
[tex]\text{r} = \dfrac{\text{d}}{2}[/tex]
[tex]\text{r} = \dfrac{18}{2}[/tex]
[tex]\text{r} = 9[/tex]
Then solve
[tex]\text{a = 9}^2[/tex]
[tex]\boxed{\bold{a = 81}}[/tex]
2. center (5, -6), radius 4
Answer:
(x - 5)² + (y + 6)² = 16
Step-by-step explanation:
assuming you require the equation of the circle
the equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k ) are the coordinates of the centre and r is the radius
here (h, k ) = (5, - 6 ) and r = 4 , then
(x - 5)² + (y - (- 6) )² = 4² , that is
(x - 5)² + (y + 6)² = 16
In Math town,60% of the population are males and 30% of them have brown eyes. Of the total math town population 28 % have brown eyes. What percentage of the females in math town have brown eyes?
A) 20%
B) 24%
C) 25%
D) 28%
thought i would leave this but ⇒ty to whoever answers this, have an amazing day <3
The percentage of females with brown eyes as follows is 25%.
What is percentage?Percentage is a way of expressing a number as a fraction of 100. It is represented by the symbol "%". The word "percent" means "per hundred".
According to question:Let's assume that the total population of Math town is 100 people for the sake of simplicity. Then, we can use the following information to create a table:
Population Males Females
Total 60 40
Brown eyes 18 ?
From the table, we can see that 60% of the population are males, so there are 60 x 0.3 = 18 males with brown eyes.
We also know that the total population with brown eyes is 28%, so there are 100 x 0.28 = 28 people with brown eyes. Therefore, there must be 28 - 18 = 10 females with brown eyes.
Finally, we can calculate the percentage of females with brown eyes as follows:
% of females with brown eyes = (10 / 40) x 100% = 25%
Therefore, the answer is (C) 25%.
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Which of the following is an even function?
f(x) = (x - 1)^2
f(x) = 8x
f(x) = x^2-x
f(x) = 7
Answer: An even function is a function that satisfies the condition:
f(-x) = f(x)
Let's check which of the given functions satisfies this condition:
f(x) = (x - 1)^2
f(-x) = (-x - 1)^2 = x^2 + 2x + 1
f(x) = (x - 1)^2
The two expressions are not equal, so f(x) is not an even function.
f(x) = 8x
f(-x) = -8x = -f(x)
f(x) = 8x
The two expressions are equal with opposite signs, so f(x) is an odd function.
f(x) = x^2 - x
f(-x) = (-x)^2 - (-x) = x^2 + x
f(x) = x^2 - x
The two expressions are not equal, so f(x) is not an even function.
f(x) = 7
f(-x) = 7 = f(x)
f(x) = 7
The two expressions are equal, so f(x) is an even function.
Therefore, the only even function among the given functions is:
f(x) = 7.
Step-by-step explanation:
Problem 1: Find the Area and round to the nearest tenth.
Answer:
39.96
Step-by-step explanation:
the shape is a parallelogram ao the formula is base x height
A=10.8 x 3.7
A=39.97
Question 6(Multiple Choice Worth 5 points) (Statistical Measurements LC) Which of the following is a statistical question that can result in numerical data? What is the name of your favorite pizza store? How many hours this week did you spend on homework? O How many times did you go swimming this year? How many pink erasers do the students in your class have?
The statistical question that can result in numerical data is "How many hours this week did you spend on homework?"
Identifying the statistical question that can result in numerical data?The statistical question that can result in numerical data is "How many hours this week did you spend on homework?"
This is because the question is asking for a numerical response that can be measured and counted. The other options are not statistical questions that can result in numerical data.
"What is the name of your favorite pizza store?" is a question that asks for a categorical response, "How many times did you go swimming this year?" is a question that asks for a countable response, And "How many pink erasers do the students in your class have?" is a question that asks for a discrete numerical response.Read more about statistical question at
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Zoey is buying 6 pairs of work gloves.
She has a coupon for $2 off the regular
price of each pair. After using the
coupon, the total cost was $47.94.
Which equation can be used to find the
original cost of a pair of gloves?
The original cost of a pair of gloves is 3.9
2. Violet is baking cupcakes for a bakesale. The equation for her profit, p, based on the
number of cupcakes she sells, c, is based on the equation p = 2.75c-24. What is the best
nterpretation of the number -24.
A. How many cupcakes she sold.
B. How much it cost to buy the ingredients for the cupcakes.
C. How much each cupcake cost.
D. What her profit is.
Answer: The best interpretation of the number -24 in the equation p = 2.75c-24 is option D: What her profit is.
The equation is in slope-intercept form, where the coefficient of c (2.75) represents the profit per cupcake and the constant term (-24) represents the fixed costs or expenses that Violet incurs regardless of how many cupcakes she sells.
In this case, the constant term of -24 represents the fixed costs such as the cost of ingredients, supplies, and other expenses that Violet incurs to make the cupcakes. This cost is subtracted from the total revenue generated by selling cupcakes to determine the profit. Therefore, the number -24 represents the fixed costs or expenses and its inclusion in the equation allows us to determine Violet's profit as a function of the number of cupcakes sold.
Step-by-step explanation:
what is the range of the function in the graph?
A. 6≤e≤12
B. 40≤f≤100
C. 6≤f≤12
D. 40≤e≤100
The range of the function in the graph is 6≤e≤12. So correct option is A.
Describe Range?In mathematics, range is a term used to refer to the set of all possible output values of a function. It is the set of values that the function can take as its input varies over its entire domain. In other words, the range of a function is the set of all output values that can be obtained by evaluating the function for all possible input values.
For example, consider the function f(x) = x². The domain of this function is all real numbers, but the range is only non-negative real numbers, since x² is always non-negative for any real number x.
The range of a function can be determined by analyzing its graph, which is a visual representation of the function. The range corresponds to the set of all y-values that appear on the graph. For instance, the range of the function f(x) = sin(x) is the closed interval [-1, 1], since the sine function oscillates between -1 and 1 as its input varies over all real numbers.
Sometimes, it is useful to restrict the domain of a function in order to obtain a specific range. This process is called domain restriction or range selection. For example, the inverse function of f(x) = x² can be obtained by restricting the domain of f to non-negative real numbers, which ensures that the inverse function is also a function. The resulting function is f^-1(x) = √x, whose domain is non-negative real numbers and range is the same as the domain of f.
The range of the function in the graph is 6≤e≤12. So correct option is A.
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lisa ran 1/2 of a mile.jan ran 3/6 of a mile.which girl ran further
The fraction that has been given illustrates that the person who ran further is Lisa and Jane.
How to solve fractionYour information isn't complete. Therefore, an overview of the fraction will given.
Let's assume that Lisa ran 1/2 of a mile and Jane ran 3/6 of a mile. In order to know who ran more, you can convert the fraction to percentage.
This will be
[tex]\text{Lisa} = \dfrac{1}{2} \times 100 = \bold{50\%}[/tex]
[tex]\text{Jane} = \dfrac{3}{6} \times 100 = \bold{50\%}[/tex]
Therefore, both Lisa and Jane ran more.
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Find the polynomial function of lowest degree with only real coefficients and having the zeros √7. -√7, and 5.
Choose the correct polynomial function of lowest degree with only real coefficients and having the zeros √7, -√7, and 5.
OA. f(x)=x³-7x²2 -5x+35
OB. f(x)=x³-5x² - 7x+35
OC. f(x)=x4 -8x³ - 7x²+3x+5
OD. f(x)=8x³+3x²-9x-9
The correct polynomial function of lowest degree with only real coefficients and having the zeros √7, -√7, and 5 is:
OB. f(x) = x³ - 5x² - 7x + 35
What is polynomial?
A polynomial is a mathematical expression that consists of variables and coefficients, which are combined using arithmetic operations such as addition, subtraction, multiplication, and non-negative integer exponents.
The polynomial function of lowest degree with only real coefficients and having the given zeros can be obtained by multiplying the factors (x - √7), (x + √7), and (x - 5) since the zeros are √7, -√7, and 5.
Expanding the product, we get:
(x - √7)(x + √7)(x - 5) = (x² - 7)(x - 5) = x³ - 5x² - 7x + 35
Therefore, the correct polynomial function of lowest degree with only real coefficients and having the zeros √7, -√7, and 5 is:
OB. f(x) = x³ - 5x² - 7x + 35
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When I divide an integer by 15, the remainder is an integer from 0 to 14. When I
divide an integer by 27, the remainder is an integer from 0 to 26.
For instance, if the integer is 100 then the remainders are 10 and 19, which are
different.
How many integers from 1 to 1000 leave the same remainders after division by 15
and after division by 27?
Answer: 119
Step-by-step explanation:
We know that we must find the least common multiple of 15 and 27 in order to solve the problem because when we are finding remainders that are the same, there must be some relationship between the integer and the two dividing numbers.
Thus, we have the least common multiple 135 and its multiples which will all have a 0 remainder when divided by 15 and by 27.
We can take each of the numbers (7) and the 15 consecutive numbers after each of them, because of modulo becoming the same after 15. If we take the total of all these numbers, which will have the same remainder after division by 15 and 27, we are left with:
15 * 8 - 1 = 119
Create a Truth Table for
(A ⋀ B) → C
The truth table is given above for (A ⋀ B) → C.
What is the logical statement?
A logical statement, also known as a proposition or a statement of fact, is a declarative sentence that is either true or false, but not both. It is a statement that can be evaluated based on the available information or evidence to determine its truth value. In other words, a logical statement is a statement that can be either true or false, but not both.
To create a truth table for the logical statement (A ⋀ B) → C, we need to consider all possible combinations of truth values for propositions A, B, and C.
There are 2 possible truth values (true or false) for each proposition, so there are 2³ = 8 possible combinations.
We can organize these combinations into a table as follows:
| A | B | C | (A ⋀ B) | (A ⋀ B) → C |
|---|---|---|---------|-------------|
| T | T | T | T | T |
| T | T | F | T | F |
| T | F | T | F | T |
| T | F | F | F | T |
| F | T | T | F | T |
| F | T | F | F | T |
| F | F | T | F | T |
| F | F | F | F | T |
In this table, the column labeled (A ⋀ B) represents the truth value of the conjunction of A and B (i.e., A AND B), and the column labeled (A ⋀ B) → C represents the truth value of the conditional statement (A ⋀ B) → C.
The symbol "T" represents "true" and the symbol "F" represents "false".
Hence, The truth table is given above for (A ⋀ B) → C.
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A set of exam scores is normally distributed and has a mean of 74.4 and a standard deviation of 8.3. What is the probability that a randomly selected score will be between 63 and 66?
The probability that a randomly selected score will be between 63 and 66 is approximately 0.0718, or 7.18%.
What is mean?
In statistics, the mean is a measure of central tendency, which is a way of describing the typical or central value of a set of data. The mean is also known as the average, and it is calculated by adding up all the values in a set of data and then dividing by the number of values in the set.
To find the probability that a randomly selected score will be between 63 and 66, we need to calculate the z-scores for these values and then find the area under the normal curve between these z-scores.
The z-score for a score of 63 is:
z = (63 - 74.4) / 8.3
z = -1.37
The z-score for a score of 66 is:
z = (66 - 74.4) / 8.3
z = -1.01
We can use a standard normal distribution table or calculator to find the area under the normal curve between these z-scores.
Using a standard normal distribution table, we find that the area to the left of a z-score of -1.01 is 0.1562, and the area to the left of a z-score of -1.37 is 0.0844. To find the area between these z-scores, we subtract the area to the left of -1.37 from the area to the left of -1.01:
P(-1.37 < z < -1.01) = 0.1562 - 0.0844 = 0.0718
So the probability that a randomly selected score will be between 63 and 66 is approximately 0.0718, or 7.18%.
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12×(3+2²)÷2-10 what is the answer
Answer:
32 I hope this helps please make me a brianlist that would help :)
A skydiver jumps out of a plane from a certain height. The graph below shows their height h in meters after t seconds. How long is the skydiver in the air? Height (in meters) 3000 2500 2000 h 1500 1000 500 0 (0, 2592.1) 2 4 6 8 10 12 14 16 Time (in seconds) 18 20 (23, 0) t 22 24
The skydiver is in the air for 23 seconds.
What is graph?A diagram or pictorial representation that organises the depiction of facts or values is known as a graph.
The relationships between two or more items are frequently represented by the points on a graph.
The skydiver is in the air as long as their height is greater than zero. From the graph, we can see that the skydiver reaches a height of zero at t = 23 seconds. Therefore, the skydiver is in the air for:
t = 23 seconds - 0 seconds = 23 seconds
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Find the area of the shaded region. The graph depicts the standard normal distribution of bone density scores with mean 0 and standard deviation 1.
The shaded area covers around 0.8664 square feet of space.
What is the typical normal distribution where the standard deviation is 0 and the mean 1?The mean and standard deviation of the standard normal distribution are 0 and 1, respectively. The standard deviation shows how much a particular measurement deviates from the mean, and the standard normal distribution is centred at zero.
Using a conventional normal distribution table, we must first determine the areas to the left of z= -1.5 and z=1.5, and then subtract those two areas to determine the area of the shaded zone.
Using a standard normal distribution table, we find that the area to the left of z= -1.5 is 0.0668, and the area to the left of z=1.5 is 0.9332. As a result, the darkened region's area is:
0.9332 - 0.0668 = 0.8664
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Jasper's aunt gave him a big bin of 500 beads made out of assorted materials to use for the wind chimes he makes. Jasper takes out a handful of beads, looks at the types of beads, then puts them back. Here are the materials of the handful he selected: glass, clay, wood, glass, wood, clay, metal, clay, wood, glass, wood, clay, metal, wood, clay Based on the data, estimate how many glass beads are in the bin. If necessary, round your answer to the nearest whole number.
We can estimate that there are approximately 134 glass beads in the bin.
What is probability?
Probability is a measure of the likelihood of an event occurring.
To estimate the number of glass beads in the bin, we can use the proportion of glass beads in the handful that Jasper selected.
There are 15 beads in the handful, and 4 of them are glass. So, the proportion of glass beads in the handful is:
4/15 ≈ 0.267
We can assume that the proportion of glass beads in the bin is similar to the proportion in the handful. Therefore, we can estimate the number of glass beads in the bin as
0.267 x 500 ≈ 134
Therefore, we can estimate that there are approximately 134 glass beads in the bin.
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Find the volume of this sphere.
Use 3 for TT.
-d=6in
V ≈ [?] in ³
V = πr³
Enter
Answer: Spheres aren’t three-dimensional—they are two-dimensional. This is evident from the fact that in order to specify a point on a sphere, you only need two pieces of information, such as latitude and longitude.
If you include the interior of the sphere, this is instead called a closed ball, and that is three-dimensional. You can specify a point in the closed ball in all sorts of different ways; one of the most convenient would be latitude, longitude, and distance from the center. However, other than convenience, there is no reason to prefer one coordinate system over any other.
(This fact has nothing to do with spheres or closed balls—that is just a statement that is generally true. People who insist that “the three dimensions” are length, width, and height don’t know what they are talking about.)
Step-by-step explanation:
Can you find X? Show how did u find
Answer:
x=90°
Step-by-step explanation:
As in the angle, there is a box giving us info that x has to be 90°.
But to be sure that there is no mistake we have to do the following:
Look at all the other angles (see what kind of angles they are).Add all the angles up to 360°( in this case as the angle we are looking for is on a straight line which gives straight line=180°).Checking and comparing the two answers.So we are looking at the surroundings of angle x (which is on a straight line) we see that it is a right angle and look at the angle on the same line is a right angle too.
The equation right angle=90° helps us see that because there are two right angles on a 180° line (90°+90°+180°).
Therefore the answer is:
x=90°
Will mark brainliest if answer is correct
The x⁶y³ term in the expansion will be: 35 x⁶y³.
The x⁸y² term in the expansion will be: 21x⁸y².
What is the binomial expansion?The binomial expansion of (x + y)ⁿ is given by the binomial theorem, which states:
(x + y)ⁿ = C(n, 0) * xⁿ * y⁰ + C(n, 1) * xⁿ⁻¹ * y¹ + C(n, 2) * xⁿ⁻² * y² + ... + C(n, k) * xⁿ⁻ᵏ * yᵏ + ... + C(n, n) * x⁰ * yⁿ
where;
C(n, k) is the binomial coefficient, defined as C(n, k) = n! / (k! * (n - k)!), and n! represents the factorial of n.Given that the term 210x⁴y⁶ appears in the expansion, we can infer that it corresponds to C(n, k) * x⁴ * y⁶, where k is the number of times y appears in the term, and (n - k) is the number of times x appears in the term.
Comparing this with the given term, we can deduce the values of n, k, and x in the following way:
C(n, k) = 210
x⁴ = x⁴
y⁶ = y³ * y³
Comparing the exponents on x and y, we can set up the following equations:
n - k = 4 (1)
k = 3 (2)
Solving equation (2) for k, we get:
k = 3
Substituting this value of k into equation (1), we can solve for n:
n - 3 = 4
n = 7
So, the value of n is 7.
Now, we can use the binomial coefficient formula to calculate C(n, k):
C(n, k) = C(7, 3) = 7! / (3! * (7 - 3)!) = 35
Finally, substituting the values of n, k, and C(n, k) into the general term of the expansion, we can find the specific terms:
The x⁶y³ term in the expansion will be:
C(7, 3) * x⁶ * y³ = 35 * x⁶ * y³
The x⁸y² term in the expansion will be:
C(7, 2) * x⁸ * y² = 21 * x⁸ * y²
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help with statistics
Statistics is a branch of mathematics that involves the collection, analysis, interpretation, presentation, and organization of data. It is used in a wide range of fields such as science, engineering, social sciences, business, economics, and more.
What is statistics?In statistics, data is collected through various methods such as surveys, experiments, and observations. This data is then analyzed using statistical methods to extract meaningful insights, identify patterns and relationships, and make informed decisions.
Some common statistical techniques include descriptive statistics, inferential statistics, hypothesis testing, regression analysis, and probability theory. These techniques are used to help researchers and analysts to understand and draw conclusions about data, and to test whether their conclusions are statistically significant.
Statistics has many practical applications, such as market research, medical research, quality control, risk assessment, and many others. It plays a critical role in modern society, helping individuals and organizations make informed decisions based on data-driven insights.
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Suppose that the functions fand g are defined as follows.
f(x)=2x-1
g(x)=√3x-5
a. i. The function f(x)/g(x) = (2x - 1)/√(3x - 5)
ii. The domain is x > 5/3
b. i. The function f(x) - g(x) = (2x - 1) - √(3x - 5)
ii. The domain is x > 5/3
What is a function?A function is a mathematical relation ship between two variables.
Since we have the functions f and g defined as follows
f(x) = 2x-1
g(x) = √3x-5
a. i To find f/g we note that
(f/g)(x) = f(x)/g(x)
So, substituting the values of the variables into the equation, we have that
f(x)/g(x) = (2x - 1)/√(3x - 5)
ii. The domain of f(x)/g(x) = (2x - 1)/√(3x - 5) is the value for which the denominator g(x) > 0.
So,g(x) > 0
⇒ √(3x - 5) > 0
⇒ 3x - 5 > 0²
⇒ 3x > 5
⇒ x > 5/3
So, the domain is x > 5/3
b. i. to find f - g, we note that
f - g = f(x) - g(x)
So, substituting the values of the variables into the equation, we have that
f(x) - g(x) = (2x - 1) - √(3x - 5)
ii. The domain of f(x) - g(x) is the value of x at which g(x) > 0
So. g(x) > 0
⇒ √(3x - 5) > 0
⇒ [√(3x - 5)]² > 0
⇒ 3x - 5 > 0
⇒ 3x > 5
⇒ x > 5/3
So, the domain is x > 5/3
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