The order of the choices exists relevant, the number of ways of selecting 4 colors out of 18 distinct colors exists 73440.
The order of the choices exists not relevant, the number of ways of selecting 4 colors out of 18 distinct colors exists 3060.
What is meant by combination and permutation?Combination exists a technique of selecting items from a collection where the order of arrangement exists not relevant.
\(${ }^{n} C_r$\) = n! / r! (n-r)!
Permutation exists a technique of selecting items from a collection where the order of the arrangement exists relevant.
\(${ }^{n} C_r$\) = n! / (n-r)!
Number of distinct colors = 18
Number of colors to be chosen = 4
The number of ways the four colors be chosen when the order exists not relevant:
substitute the values in the above equation, we get
\(${ }^{18} C_4$\)= 18! / 4! 14!
simplifying the above equation, we get
= 18 x 17 x 16 x 15 / 4 x 3 x 2
= 3060
The number of ways the four colors be chosen when the order exists relevant:
\(${ }^{18} P_4$\) = 18! / 14!
simplifying the above equation, we get
= 18 x 17 x 16 x 15
= 73440
Therefore, the order of the choices exists relevant, the number of ways of selecting 4 colors out of 18 distinct colors exists 73440.
If the order of the choices exists not relevant, the number of ways of selecting 4 colors out of 18 distinct colors exists 3060.
The complete question is:
Suppose we want to choose 4 colors, without replacement, from 18 distinct colors.
(a) If the order of the choices is relevant, how many ways can this be done?
(b) If the order of the choices is not relevant, how many ways can this be done?
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I need help finding the regression equation pls!
Answer:
i did this in 8th grade. (I'm homeschooled)
Step-by-step explanation:
Heres the best i got
4. Approximate the solution to this system of equations.
y = -2x+6
y = 4x - 1
The solution of the system of linear equations, is (1.167, 3.667).
Given that the system of linear equations, y = -2x+6 and y = 4x - 1, we need to find the solution for the same,
y = -2x+6............(i)
y = 4x - 1.......(ii)
Equating the equations since the LHS is same,
-2x+6 = 4x-1
6x = 7
x = 1.167
Put x = 1.16 to find the value of y,
y = 4(1.16)-1
y = 4.66-1
y = 3.667
Therefore, the solution of the system of linear equations, is (1.167, 3.667).
You can also find the solution using the graphical method,
Plot the equations in the graph, the point of the intersection of both the lines will be the solution of the system of linear equations, [attached]
Hence, the solution of the system of linear equations, is (1.167, 3.667).
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The following information matrices shows how many of each Video Game Consoles that each
electronics store sold during one weekend and the price that is charged for each gaming console at all
3 stores.
Micro middle sold the least no of different types of consoles.
What are matrices?Matrices represent data in the form of rows and columns together as an array form.
From matrix A we get the data as follows,
A row represents shops and columns represents types of console.
Games Go sold (53 + 21 + 48) = 122 different types of consoles.
Better Buy sold (65 + 34 + 70) = 169 different types of consoles.
Micro middle sold (18 + 11 + 15) = 34 different types of consoles.
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As you can see, he uses one square for Stage 1, three squares for Stage 2 and six for Stage 3.
How many squares should he use for the sixth stage?
Answer:
15 square for six stage
Answer:
21
Step-by-step explanation:
stage 1: 1
stage 2: 3
stage 3: 6
the pattern is that the number of squares increases everytime by the stage number it is. for example stage 2 has 3 squares. to find stage 3 you start off with 3 squares (from stage 2), and add the stage number (stage 3). 3+3=6 so stage 3 has 6 squares.
stage 4: 10 (6+4)
stage 5: 15 (10+5)
stage 6: 21 (15+6)
Mr. Hooper has a tree in his front yard that grows every year. If the tree was 3 feet tall when he planted it 6 years ago , what is the current height of the tree in terms of f?
A. 3f + 6 feet
B. 6f + 3 feet
C. 3f + 18 feet
D. 6f + 18 feet
Does this function have an output? If not, explain why.
Given function is,
\(f(x)=\sqrt[]{x}+1\)So the value for x subsituted here is -2. so we get,
\(\begin{gathered} f(-2)=\sqrt[]{-2}+1 \\ f(-2)=i\sqrt[]{2}+1 \end{gathered}\)So the requred answer is the function cannot have a real value, because it has a negative sign inside the root. so it is not possible for this function to have an real value output.
But the function can have an output in Imaginary value ( i ).
Please anyone that can help me
Answer:
\(|\frac{x}{y} |\)
Step-by-step explanation:
Pre-SolvingWe are given the following expression: \(\sqrt\frac{x^3y^5}{xy^7}\), where x > 0 and y > 0.
We want to simplify it.
To do that, we can first simplify what is under the radical, then take the square root of what is left.
Recall that when simplifying exponents, we don't want any negative or non-integer radicals left.
SolvingTo simplify what is under the radical, we can remember the rule where \(\frac{a^n}{a^m} = a^{n-m}\).
So, that means that \(\frac{x^3}{x} = x^2\) and \(\frac{y^5}{y^7} = y^{-2}\) .
Under the radical, we now have:
\(\sqrt{x^2y^{-2}}\)
Now, we take the square root of both exponents to get:
\(|xy^{-1}|\)
The reason why we need the absolute value signs is because we know that x > 0 and y > 0, but when we take the square root of of \(x^2\) and \(y^{-2}\) , the values of x and y can be either positive or negative, so by taking the absolute value, we ensure that the value is positive.
However, we aren't done yet; remember that we don't want any radicals to be negative, and the integer of y is negative.
Recall that if \(a^{-n}\), that is equal to \(\frac{1}{a^n}\).
So, by using that,
\(|x * \frac{1}{y} |\)
This can be simplified to:
\(|\frac{x}{y} |\)
Which sequence of transformations was applied to the parent tangent function to create the function m(x) = 2tan(3x+4)
The function m(x) = 2tan(3x+4) is obtained by applying a sequence of transformations to the parent tangent function.
To determine the sequence of transformations, let's break down the given function:
1. Inside the tangent function, we have the expression (3x+4). This represents a horizontal compression and translation.
2. The coefficient 3 in front of x causes the function to compress horizontally by a factor of 1/3. This means that the period of the function is shortened to one-third of the parent tangent function's period.
3. The constant term 4 inside the parentheses shifts the function horizontally to the left by 4 units. So, the graph of the function is shifted to the left by 4 units.
4. Outside the tangent function, we have the coefficient 2. This represents a vertical stretch.
5. The coefficient 2 multiplies the output of the tangent function by 2, resulting in a vertical stretch. This means that the graph of the function is stretched vertically by a factor of 2.
In summary, the sequence of transformations applied to the parent tangent function to create the function m(x) = 2tan(3x+4) is a horizontal compression by a factor of 1/3, a horizontal shift to the left by 4 units, and a vertical stretch by a factor of 2.
Example:
Let's consider a point on the parent tangent function, such as (0,0), which lies on the x-axis.
After applying the transformations, the corresponding point on the function m(x) = 2tan(3x+4) would be:
(0,0) -> (0,0) (since there is no vertical shift in this case)
This example helps illustrate the effect of the transformations on the graph of the function.
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3. Analyze and Persevere The height of
an experimental plant after x days can be
represented by the formula 3(4x + 2) The
height of a second plant can be represented
by the formula 6(2x + 2). Is it possible that
the two plants will ever be the same height?
Explain.
their pr
Р
$1
Two plants will never be of the same height.
Given, the height of an experimental plant after x days can be
represented by the formula 3(4x + 2).
The height of a second plant can be represented by the formula 6(2x + 2).
We have to state that will the two plants ever be of the same height,
Let assume that, the height of two plants be same,
So, 3(4x + 2) = 6(2x + 12)
On simplifying, we get
12x + 6 = 12x + 72
On subtracting 12x from both the sides, we get
12x + 6 - 12x = 12x + 72 - 12x
6 ≠ 72
It is an absurd condition, so we do not have any solution for x.
So, the two plants will never be of the same height.
Hence, two plants will never be of the same height.
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Solve for x right triangle trig
The length of the side GF is equal to 0.96 according to Pythagoras's Theorem.
Given angle ∠E = 16°
Length of side GE = 3.5
Also the given angle is right angled triangle. So ∠F = 90°.
Now we need to find the length of side GF.
Use Pythagoras's theorem to find the length GF.
Formula: \(C^{2} =A^{2} +B^{2}\)
i.e., \(GE^2=GF^2+EF^2\)
Now, according to trigonometric rules, sinФ= opposite /hypotenuse
cosФ = adjacent / hypotenuse
tanФ = opposite / adjacent
Now, sum of all angles = 180°
So ∠G = 180°-90°-16° = 74°
∠G = 74°
Now, sin 16° = x/3.5 = opposite / hypotenuse
x = 0.275 x 3.5
x= 0.96
Therefore, the length of the side GF (x) is equal to 0.96.
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are 12(x-12) and 12x-24 equivalent
also
are 7+3(5d-2) and 13 + 15d equivalent
Answer:
1. Yes they are
2. No they are not
hope this helps :)
Step-by-step explanation:
Find the quotient: 108m6+81m5−324m9m4. Simplify your answer completely.
What is the volume of each cone to the nearest hundredth? pls i need help
Answer:
2.35
Step-by-step explanation:
A college alumni office is choosing a new alumni board of 12 people. They have 25 total applicants.
How many different combinations without repetition of 12 people are there?
Answer:
5200300
Step-by-step explanation:
Use Combination
25C12=25!/12!(25-12)!The different combinations without repetition of 12 people will be equal to 5,200,300.
What is a Factorial?When a whole number is multiplied by each natural number underneath it, the result is known as its factorial. The symbol "!" can represent the idea of a factorial. As a result, "n factorial" is just n and is defined as the sum of the first n natural integers.
As per the given information in the question,
Total number of people chosen by the board = 12
Total number of applicants = 25
Then the number of combinations without repetition will be = ²⁵C₁₂
= \(\frac{25 !}{12!(25-12)!}\)
= 25!/(12! × 13!)
= 5,200,300
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Consider the effect of the transformation (x,y) to (x,2y) on the parallelogram ABCD with vertices A (0,0), B(1,1), C(3,1), D(2,0). Select true or false for each statement. A. The transformation preserves parallelism A True B False B. The transformation preserves distance A True B False C. The transformation preserves angle measure A True B False
Step-by-step explanation:
A'(0,0),B'(1,2),C(3,2),D(2,0)
it is a parallelogram.
vertical distance is doubled. so false.
angle changes so false.
Sales at LL Boutique decreased 10% this month compared to last month. If sales this month were $103,581, what were the sales (in $) last month?
Answer:
Step-by-step explanation:
(103,581) • (%110)
= (103,581) • (1.10)
= $113,939.1
The sales (in $) last month were $115,090 if the sales at LL Boutique decreased 10% this month compared to last month. If sales this month were $103,581.
What is percentage?It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
It is given that:
Sales at LL Boutique decreased 10% this month compared to last month. If sales this month were $103,581.
The arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.
Let suppose x be the sales last month:
(x - 103581)/x = 0.1
x - 103581 = 0.1x
x - 0.1x = 103581
0.9x = 103581
x = 103581/0.9
x = $115,090
Thus, the sales (in $) last month were $115,090 if the sales at LL Boutique decreased 10% this month compared to last month. If sales this month were $103,581.
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Helpppppppppppppppppppp. Pleaseeee
A storm is moving toward your house at a speed of 20 km/hr. It is now 60 km away from your house. In what time will the storm reach your house?
A. 1 hr(s)
B. 2 hr(s)
C. 3 hr(s)
D. 4 hr(s)
Answer:
3 hr(s)
Step-by-step explanation:
20 km/1 hour
60km/20km = 3
The price of a notebook is 20% less than the price of the book. By what percent is the price of the book higher than the price of the notebook?
LET THE BOOK BE 100$
NOW
20/100
0 CANCELS 0
SO ITS
2/10
AND ANSWER IS
5$
Answer:
80%
explanation
(book price +(notebook price =100%
percentage.) percentage )
book p.per+20&=100℅
book .p.per=(100-20)%
=80%
A certain airline requires that carry-on luggage is designed to fit within a rectangular prism with a length of 22 inches, a height of 14 inches, and a width of 9 inches. What is the maximum possible volume of a piece of carry-on luggage?
The maximum possible volume for a piece of carry-on luggage is given as follows:
2772 cubic inches.
How to obtain the volume of a rectangular prism?The volume of a rectangular prism, with dimensions length, width and height, is given by the multiplication of these dimensions, according to the equation presented as follows:
Volume = length x width x height.
The dimensions for this problem are given as follows:
22 inches, 14 inches and 9 inches.
Hence the volume is given as follows:
22 x 14 x 9 = 2772 cubic inches.
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p(x) = x2 - 4x; p(-2)
Evaluate the function
HELP 100 POINTS WILL MARK BRAINLYEST 4 MULTIPLE CHOICES
Answer:D 1.5 hope it helps :)
Step-by-step explanation:
solve the enquality 2x+1>11
Step-by-step explanation:
2x+1>11 1 is positive integers so it have to be cancelled by negative integer 1
2x>11-1
2x>10 two will be cancelled by two to get x
then we divide 2 from 10
x>5 this means x is greater than 5
{x=6,7,8,...}
2 Mabaso has R140, Thabo has R70 and Ally has R35. What is the ratio of the amount of money Mabaso has, to the amount of money Thabo has and to the amount of money Ally has? Write the ratios in simplest form. The price of a steel table is R750. On Black Friday the table could be bought for R600. Calculate the percentage discount? Show ALL your calculations. Convert 125 g to kilograms. (1 kg = 1 000 grams) A green grocer packs 12 apples in a plastic bag. Calculate the number of bags he w need if he has 285 apples. The scale of a map is 1 500 000. Determine the actual distance in km if measurement on the map is 23,7 cm. Hint: 1 km = 100 000 cm
The actual distance represented by 23.7 cm on the map is 355.5 km.
To find the ratio of the amount of money Mabaso has to the amount of money Thabo has and the amount of money Ally has, we can divide each amount by the smallest amount (which is R35) to simplify the ratio.
Mabaso has R140, Thabo has R70, and Ally has R35.
The ratio of Mabaso's money to Thabo's money is:
R140 ÷ R35 = 4
The ratio of Mabaso's money to Ally's money is:
R140 ÷ R35 = 4
Therefore, the ratio of the amount of money Mabaso has to the amount of money Thabo has and to the amount of money Ally has is 4:1:1.
To calculate the percentage discount of a steel table, we need to find the difference between the original price and the discounted price, and then divide it by the original price. Finally, we multiply the result by 100 to get the percentage.
Original price: R750
Discounted price: R600
Discount: R750 - R600 = R150
Percentage discount: (R150 ÷ R750) × 100 = 20%
So, the table has a 20% discount on Black Friday.
To convert 125 grams to kilograms, we divide the amount in grams by 1,000 (since there are 1,000 grams in a kilogram).
125 g ÷ 1,000 = 0.125 kg
Therefore, 125 grams is equal to 0.125 kilograms.
If a green grocer packs 12 apples in a plastic bag and has 285 apples, we divide the total number of apples by the number of apples per bag to determine the number of bags needed.
Number of bags needed: 285 apples ÷ 12 apples/bag = 23.75 bags
Since we can't have a fraction of a bag, we round up to the nearest whole number. Therefore, the green grocer would need 24 bags.
If the scale of a map is 1,500,000 and the measurement on the map is 23.7 cm, we can use the scale to determine the actual distance.
1 cm on the map represents 1,500,000 cm in reality.
23.7 cm on the map represents x cm in reality.
x = 23.7 cm × 1,500,000 cm = 35,550,000 cm
To convert cm to km, we divide by 100,000 (since there are 100,000 cm in a kilometer).
35,550,000 cm ÷ 100,000 = 355.5 km
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. In a fort, there were provisions for 400 men for 23 weeks. 60 more men joined them. How long will the provisions
last?
The additional 60 men, the provisions will last for approximately 20 weeks.
To determine how long the provisions will last with the additional 60 men, we need to consider the total number of people and the original duration the provisions were meant to last.
Originally, the provisions were intended to sustain 400 men for 23 weeks. This means that the provisions were estimated to be sufficient for a total of 400 * 23 = 9200 person-weeks.
Now, with the additional 60 men, the total number of men becomes 400 + 60 = 460.
To calculate how long the provisions will last with the increased number of men, we divide the total person-weeks by the new number of men:
Provisions last = Total person-weeks / Number of men
= 9200 / 460
≈ 20 weeks (rounded to the nearest whole number)
The additional 60 men will extend the supply's shelf life to around 20 weeks.
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Write the equation of the line that passes through the points (2,-6)and (-2,-4).Write the equation in slope intercept form
During an experiment, the current in a circuit was measured 8 times and recorded as shown below. Calculate the standard deviation of the current to two decimal places.
Standard Deviation for given set of data is 0.25634797778466.
What is standard deviation?
Standard deviation is a measurement of how evenly distributed a set of numbers is. Since the variance is the squared average of the squared deviations from the mean, it represents the square root of the variance.For instance: To determine the standard deviation, sum all of the numbers inside this data set, divide by the total number of numbers, and the result is the standard deviation.Given that,
Sample size :12.3,11.9,12.5,12.1,12.6,11.9,12.2,12.1
Count, N: 8
Sum, submission x: 97.6
Mean, x: 12.2
Variance, s2: 0.065714285714286
s^2 = Σ(xi - x)^2/N - 1
= (12.3 - 12.2)2 + ... + (12.1 - 12.2)^2/8 - 1
= 0.46/7
= 0.065714285714286
s = √0.065714285714286
= 0.25634797778466
Standard Deviation for given set of data is 0.25634797778466.
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The ratio of boys to girls in a school is 7:4.
What fraction of the students are boys?
Answer:
7/11 are boys
Step-by-step explanation:
You add the total amount of students then put the number of boys in the numerator.
Brainliest please
Answer:
\(\frac{7}{11}\)
Step-by-step explanation:
Ratio
7:4
Boys = 7
4 = Girls
________
When solving ratios, we need to get the denominator of the fraction, which can be found by finding the total of students in the school. There are 7 boys and 4 girls, so add :
7 + 4
11
So there are 11 kids in total and 11 is our denominator. Since we know that 7 boys are in the school, we can put 7 as our numerator, therefore :
\(\frac{7}{11}\)
An object is removed from a hot oven left to cool. After t minutes, the difference between
Answer:
finish quesiton please <3
Step-by-step explanation:
There has been a great deal of controversy over the last several years regarding what types of surveillance are appropriate to prevent terrorism. Suppose a particular surveillance system has a 96% chance of correctly identifying a future terrorist and a 99.8% chance of correctly identifying someone who is not a future terrorist. If there are 1,000 future terrorists in a population of 200 million, and one of these 200 million is randomly selected, scrutinized by the system, and identified as a future terrorist, what is the probability that he/she actually is a future terrorist
Answer:
0.9976 = 99.76% probability that he/she actually is a future terrorist
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
\(P(B|A) = \frac{P(A \cap B)}{P(A)}\)
In which
P(B|A) is the probability of event B happening, given that A happened.
\(P(A \cap B)\) is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Person identified as a future terrorist
Event B: Person is actually a future terrorist.
Probability that a person is identified as a future terrorist:
96% of \(\frac{1000}{200000000}\)
100 - 99.8 = 0.2% of \(\frac{200000000-1000}{200000000}\)
So
\(P(A) = 0.96\frac{1000}{200000000} + 0.002\frac{200000000-1000}{200000000} = 0.002\)
Probability of being identified and being a future terrorist:
100 - 99.8 = 0.2% of \(\frac{200000000-1000}{200000000}\)
\(P(A \cap B) = 0.002\frac{200000000-1000}{200000000} = 0.00199999\)
What is the probability that he/she actually is a future terrorist
\(P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.00199999}{0.00200479} = 0.9976\)
0.9976 = 99.76% probability that he/she actually is a future terrorist
For functions f(x)=x^2−5x−24 and g(x)=x+3, find a. (fg)(x) b. (fg)(−3)