Mrs John Buy 24 package of napkins for a school fair each package contained 200 napkins how many napkins are there in all
Answer:
4,800
Step-by-step explanation:
200 x 24=4,800
30 POINTS! How can matrices be used to represent and manipulate data?
Matrices are a type of data structure that can be used to represent and manipulate data in a variety of ways.
One way to use matrices to represent data is to store the data in the form of a matrix. For example, a matrix could be used to represent a table of values, where each row represents a different data point and each column represents a different attribute or feature of the data.
Matrices can also be used to manipulate data by performing mathematical operations on the matrix elements. For example, matrices can be added, subtracted, and multiplied to perform operations such as matrix addition, matrix subtraction, and matrix multiplication. These operations can be used to perform various types of data manipulation, such as combining data from different sources, transforming data, or calculating statistics.
In addition to performing mathematical operations, matrices can also be used to store and manipulate data in other ways. For example, matrices can be used to represent and manipulate images and other types of data that have a two-dimensional structure. Matrices can also be used to represent and manipulate data in higher dimensions, such as data with a three-dimensional structure.
Overall, matrices are a powerful tool for representing and manipulating data in a variety of contexts, and they are widely used in a range of fields including mathematics, computer science, engineering, and data analysis.
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Matrices are a type of data structure that can be used in a variety of ways to represent and manipulate data.
One method for utilizing grids to address information is to store the information as a framework. A table of values, for instance, could be represented by a matrix, with each row representing a distinct data point and each column representing a distinct attribute or feature of the data.
What are matrix?The plural form of a matrix, a rectangular array or table in which numbers or elements are arranged in rows and columns, is referred to as a matrices. They can have as many columns and rows as you want. Matrix operations include addition, scalar multiplication, multiplication, transposition, and others.
When performing these matrix operations, certain rules must be followed. For example, they can only be multiplied if the first and second columns are exactly the same, and they can only be added or subtracted if they have the same number of rows and columns.
Matrices can also be used to manipulate data by performing mathematical operations on the matrix elements. For example, matrices can be added, subtracted, and multiplied to perform operations such as matrix addition, matrix subtraction, and matrix multiplication. These operations can be used to perform various types of data manipulation, such as combining data from different sources, transforming data, or calculating statistics.
In addition to performing mathematical operations, matrices can also be used to store and manipulate data in other ways. For example, matrices can be used to represent and manipulate images and other types of data that have a two-dimensional structure. Matrices can also be used to represent and manipulate data in higher dimensions, such as data with a three-dimensional structure.
In general, matrices are extensively utilized in a variety of fields, including mathematics, computer science, engineering, and data analysis. They are a powerful tool for representing and manipulating data in a variety of contexts.
Hence the matrices be used to represent and manipulate data.
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A normal distribution of scores has a standard deviation of 182.56 and a mean of 265.95. Find the z-score of 235.90.
The z-score of 235.90, if a normal distribution of scores has a standard deviation of 182.56 and a mean of 265.95, is -0.165.
What is mean?The mean of the set of data is equal to the sum of all the quantities in the data, and divide by the no of quantities.
Given:
The standard deviation, d = 182.56,
The mean, m = 265.95,
The observation value, X = 235.90
Calculate the z score by the following formula given below,
Z = (X - m) / d,
Here, Z is the Z score,
Z = 235.90 - 265.95 / 182.56
Z = -0.165
Therefore, the z-score of 235.90, if a normal distribution of scores has a standard deviation of 182.56 and a mean of 265.95, is -0.165.
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7m find the area
please
Answer:
Area = length x width
7 x 7 =49
A. Step 1 B. Step 2 C. Omar did not make a mistake
To find out if Omar made a mistake, we must solve the equation step by step.
Step 1
\(\begin{gathered} 3x=4.5 \\ \text{divide through by 3} \\ \frac{3x}{3}=\frac{4.5}{3} \end{gathered}\)Step 2
Simplify the final part in step 1
\(\begin{gathered} \frac{3x}{3}=\frac{4.5}{3} \\ x=\frac{3}{2}=1.5 \end{gathered}\)Since, we have gone through all the steps and gotten exactly the same steps and solution as Omar, we can conclude that Omar did not make a mistake.
2x+20-(5X3)=30. Solve for x.
Answer:
25/2
Step-by-step explanation:
Use order of operations to solve in the bracket.
2x + 20 - ( 5X3) = 30
2x + 20 - (15) = 30
Now open the brackets.
2x + 20 - 15 = 30
2x + 5 = 30
Subtract both sides by 5
2x = 25
Divide both sides by 2.
25/2
7th grade math help me please
Answer:
27-t times 3
27- 6 times 3
27-18
9
5 Signs for science project displays are cut of poster board that measure 1 yard on each side. Each sign is-yard long and-yard wide. How ma signs can be cut from 1 piece of poster board? Wh the area of each sign? Show your work.
Answer:
\(\text{27}\)
Step-by-step explanation:
Given that :
\(\text{Dimension of poster board} = 1 \ \text{yd} \ \text{by} \ 1 \ \text{yd}\)
\(\text{Dimension of each poster board} = \dfrac{1}{3} \ \text{yd} \ \text{by} \ \dfrac{1}{9} \ \text{yd}\)
Number of poster signs that can be cut :
\(\text{Area of poster sign} = \dfrac{1}{3} \times \dfrac{1}{9} = \dfrac{1}{27} \ \text{yard}^2\)
\(\text{Area of poster board} = 1 \ \text{yard}^2\)
Number of poster signs that can be cut :
\(\dfrac{\text{Area of poster board}}{\text{Area of poster sign}}\)
\(1 \ \text{yard}^2\div (\dfrac{1}{27} ) \ \text{yard}^2\)
\(1 \div \dfrac{1}{27}\)
\(1 \times \dfrac{27}{1}\)
\(\bold{= 27 \ poster \ signs}\)
what is the answer to 1+1
Answer:
the answer to 1+1 is 2
:) lol
Answer:
2
Step-by-step explanation:
At the U.S. Open Tennis Championship a statistician keeps track of every serve that a player hits during the tournament. The statistician reported that the mean serve speed of a particular player was 100 miles per hourâ (mph) and the standard deviation of the serve speeds was 13 mph. If nothing is known about the shape of theâ distribution, give an interval that will contain the speeds of at least eight-ninths of theâ player's serves.
a. 74 mph to 126 mph
b. 61 mph to 139 mph
c. 48 mph to 152 mph
d. 139 mph to 178 mph
Answer:
b. 61 mph to 139 mph
Step-by-step explanation:
Chebyshev's theorem states that
For k> 1
1 - 1/k²
Where:
At least 75% or 3/4 of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ.
At least 88.89% of 8/9 of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ.
From the question, we are told to find an interval that will contain the speeds of at least eight-ninths of the player's serves.
Mean (μ)= 100mph
Standard deviation (σ) = 13mph
At least 88.89% of 8/9 of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ.
Hence:
μ - 3σ
100 - 3(13)
= 100 - 39
= 61 mph
μ + 3σ
= 100 + 3(13)
= 100 + 39
= 139 mph
Therefore, the interval is between 61 mph to 139 mph. Option b is correct
Study the two equilateral triangles shown.
Triangle 1
10 cm
Triangle 2
7.5 cm
By what factor is Triangle 1 reduced to form Triangle 2?
O 0.5
O 0.75
O 1.25
O 2.5
Answer: I might need ore info but i think the answer is 0.75
Step-by-step explanation:
Which of the following are factor pairs for 54?select all that apply.
Answer:
The Pair Factors of 54 are (1, 54), (2, 27), (3, 18), and (6, 9) and its Prime Factors are 1, 2, 3, 6, 9, 18, 27, 54.
Step-by-step explanation:
hope this helped:)
brainliest for the brains........................
The Pair Factors of 54 are (1, 54), (2, 27), (3, 18), and (6, 9) and its Prime Factors are 1, 2, 3, 6, 9, 18, 27, 54.
Here, we have,
The factors of 54 are the numbers, that can divide 54 completely or evenly. When a pair of factors are multiplied together to produce the 54, then they are said to be pair factors. The factors divide the number completely. Hence, these factors cannot be a fraction.
Factors of 54: 1,2,3,6,9,18,27 and 54
Factor pairs of the number 54 are the whole numbers which are not a fraction or decimal number.
To find the factors of a number, 54, we will use the factorization method.
To find factors of 54, we have to divide 54 by all natural numbers from 1 to 54.
54 ÷ 1 = 54
54 ÷ 2 = 27
54 ÷ 3 = 18
54 ÷ 6 = 9
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At 10:00 a.m., Han and Tyler both started running toward each other from opposite ends of a 10-mile path along a river. Han runs at a pace of 12 minutes per mile. Tyler runs at a pace of 15 minutes per mile.
1. How far does Han run after a half hour?
2. How far does Han run after an hour?
3. Do Han and Tyler meet on the path within 1 hour?
4. Explain or show your reasoning.=(optional)
Answer:
2.5 miles, 5 miles, no
Step-by-step explanation:
23.75 divided by 9.50
Answer:
2.5
Step-by-step explanation:
please mark brainliest
the cost of one scoop sundae is 2.75 and a cost of a two scoop sundae is 4.25 write and evaluate an expression to fine the total cost of 3 one scoop sundaes and 2 two scoop sundaes
The total cost of 3 one scoop sundaes and 2 two scoop sundaes by evaluating an expression 2.75(3)+ 4.25(2) is 16.75.
What is an expression in two variable?An expression in two variables is a combination of numbers and two variables using mathematical operation +,-,/,*. It will a linear expression when the maximum power of variables is only one in the expression.
Let x and y are two variables and a, b, c are some numbers. Then a linear two expression can be given by ax+ by+ c
Given the cost of one scoop sundae is 2.75 and a cost of a two scoop sundae is 4.25
Let the number of sundaes of one scoop sundae be x and the numbers of sundaes be y
Then the total cost of these sundaes is given as by expression 2.75x + 4.25y
Given that there are 3 one scoop sundaes and 2 two scoop sundaes
Thus, x= 3 and y = 2
Total cost is given by expression= 2.75(3)+ 4.25(2)= 16.75
Therefore, he total cost of 3 one scoop sundaes and 2 two scoop sundaes is 16.75
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PLS HELP ME ANSWER THIS QUESTION..
Answer:
b. 4
c. 90⁰
Step-by-step explanation:
a. is in the diagram
50 points!
What is a quartic function with only the two real zeroes given? x = 5 and x = 1
y = -x4 - 6x3 + 6x2 - 6x + 5
y = x4 + 6x3 - 6x2 + 6x - 5
y = x4 - 6x3 + 5x2 - 6x + 6
y = x4 - 6x3 + 6x2 - 6x + 5
Answer
y = x4 - 6x3 + 6x2 - 6x + 5
Step-by-step explanation:
usually factor and set each factor = to 0 and solve for x...so we will unsolve it.
x=5 and x=1 If you meant quartic. Quartic is a function where the leading term has a forth power. So, you can multiply the quadratic function times any other quadratic function that only gives you complex answers...the easiest would be
y = x4 - 6x3 + 6x2 - 6x + 5
Answer:
y = x4 - 6x3 + 6x2 - 6x + 5
Step-by-step explanation:
Hope this helps
The total cost of 5 kg rice and 6 kg sugar is Rs 940. If the
rate of rice increases by 20% and the rate of sugar decreases
by 10%, the total cost of 4 kg rice and 3 kg sugar will be
Rs 627. By what percent the cost of 1 kg rice is more or less
than the cost of 1 kg sugar. Find it.
The percent cost of 1 kg rice is less than the cost of 1 kg sugar by 11 1/9%.
What is percent increase?We first calculate the difference between the original value and the new value when comparing a rise in a quantity over time. The relative increase in comparison to the initial value is then determined using this difference, and it is expressed as a percentage.
Let the cost price of rice is R and cost price of sugar is S.
Case 1 : total cost of 5 kg rice and 6 kg sugar is Rs. 940.
5R + 6S = 940 ...(1)
Case 2 : rate of rice increased by 20% and the rate of sugar decreased by 10%.
The new cost price of rice = R + 20% of R = 1.2R
The new cost price of sugar = S - 10% of S = 0.9S
So, the total cost of 4 kg rice and 3 kg sugar will be Rs. 627.
Thus,
4 × 1.2R + 3 × 0.9S = 4.8R + 2.7S = 627 ..(2)
From equations (1) and (2) we have,
(5R + 6S)/(4.8R + 2.7R) = 940/627
R/S = 8/9
Hence, if the price of rice is 8 then the price of sugar is 9.
It is clear that the price of sugar is more than that of rice.
The percent cost by which cost of rice is less than sugar is:
(9 - 8)/ 9 (100) = 11 1/9%.
Hence, the cost of 1 kg rice is less than the cost of 1 kg sugar by 11 1/9%.
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Cube root of 216
With full steps
Answer:
6
Step-by-step explanation:
Step 1: Find the prime factors of 216 216 = 2 × 2 × 2 × 3 × 3 × 3 Step 2: Clearly, 216 is a perfect cube. Therefore, group the factors of 216 in a pair of three and write in the form of... Step 3: Now, we will apply cube root on both the sides to take out the factor as a single term, which is in cubes.Solve for x and graph the answer on a number line
2
The solution to the system of inequalities in interval notation is [-2, 1].
How to solve the system of inequalities?Based on the information provided in the image below, we have the following system of inequalities;
-12 < 3x - 6
-3 ≥ 3x - 6
By adding 6 to both sides of the equation (inequality), we have;
-12 < 3x - 6
-12 + 6 < 3x - 6 + 6
-6 < 3x
-2 < x
x > -2 (flip)
-3 ≥ 3x - 6
-3 + 6 ≥ 3x - 6 + 6
3 ≥ 3x
1 ≥ x
x ≤ 1
Therefore, the solution to the system of inequalities is given by:
-2 < x ≤ 1
In interval notation, we have [-2, 1].
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
what is 15 to the power of 12
Answer:
1.2974634e+14
Step-by-step explanation:
ye
What are the exact solutions of x2 − 3x − 5 = 0, where x equals negative b plus or minus the square root of b squared minus 4 times a times c all over 2 times a? Group of answer choices x = the quantity of 3 plus or minus the square root of 29 all over 2 x = the quantity of negative 3 plus or minus the square root of 29 all over 2 x = the quantity of negative 3 plus or minus the square root of 11 all over 2 x = the quantity of 3 plus or minus the square root of 11 all over 2
The exact solutions of the Quadratic equation x^2 - 3x - 5 = 0 are:
x = (3 + √29) / 2 ,x = (3 - √29) / 2. The correct answer choice is:
x = the quantity of 3 plus or minus the square root of 29 all over 2.
The exact solutions of the quadratic equation x^2 - 3x - 5 = 0 using the quadratic formula, we can identify the values of a, b, and c, and substitute them into the formula:
a = 1
b = -3
c = -5
Now, we can apply the quadratic formula:
x = (-b ± √(b^2 - 4ac)) / (2a)
Substituting the values into the formula:
x = (-(−3) ± √((−3)^2 - 4(1)(−5))) / (2(1))
x = (3 ± √(9 + 20)) / 2
x = (3 ± √29) / 2
Therefore, the exact solutions of the quadratic equation x^2 - 3x - 5 = 0 are:
x = (3 + √29) / 2
x = (3 - √29) / 2
The correct answer choice is:
x = the quantity of 3 plus or minus the square root of 29 all over 2.
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In a survey, people were asked whether they like baseball or whether they like hockey. Here are the results: Likes hockey Doesn’t like hockey Likes baseball 12 18 Doesn’t like baseball 14 6 What value is missing to convert the two-way table to a two-way relative frequency table? Likes hockey Doesn’t like hockey Likes baseball 0.24 0.36 Doesn’t like baseball 0.28
The missing value 'x' in the two-way relative frequency table is 0.36.
To convert the two-way table to a two-way relative frequency table, we need to calculate the relative frequencies for each category. Relative frequency is calculated by dividing the frequency of a particular category by the total count in that row or column.
Let's denote the missing value as 'x'. To find the value of 'x', we need to ensure that the sum of the relative frequencies in each row and each column adds up to 1.
First, let's calculate the relative frequencies for each category:
Likes hockey: The total count in this row is 12 + 18 = 30.
Relative frequency of "Likes hockey" = 12/30 = 0.4
Relative frequency of "Doesn't like hockey" = 18/30 = 0.6
Likes baseball: The total count in this column is 12 + 14 = 26.
Relative frequency of "Likes baseball" = 12/26 ≈ 0.4615
Relative frequency of "Doesn't like baseball" = 14/26 ≈ 0.5385
To ensure that the relative frequencies add up to 1, we can set up the following equations:
0.4 + x = 1 (sum of relative frequencies in the "Likes hockey" row)
0.4615 + 0.5385 + x = 1 (sum of relative frequencies in the "Likes baseball" column)
Simplifying the equations, we have:
x = 0.6 (1 - 0.4) = 0.6 * 0.6 = 0.36
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4(p + 2) –2p – 16
Please Help!
Answer:
2p-8
Step-by-step explanation:
Know you're amazing and smart!
Answer:
Step-by-step explanation:
4p+8-2p-16 combine like terms
2p-8
What is 5/12 + 23/10 need help immediately please!!!
Answer:
Simplest form: 163/60
Decimal form: 2.7166666666-
Mixed Number form: 2 43/60
Step-by-step explanation:
Hope this helps!!
Answer: 2 7/10
Step-by-step explanation:
First, you need to find a common denominator which is 60.
because 10 x 6 = 60 and 12 x 5 = 60
then you have to multiply the number you multiplied to get 60.
So, it would be 25/60 + 138/60 = 163/60
163/60 can be simplified to 2 43/60 which is again simplified to 2 7/10.
What's the equation of the graph shown above? ) y = 4x + 2 B) y = 4x – 2 C) y = 5x + 2 D) y = 2x + 4
Answer:
i need the graph
Step-by-step explanation:
.
A collection of dimes and nickels has a total value of two dollars and contains 28 coins. How many dimes are there in the collection?
A.)14 dimes
B.)8
C.)12
D.)10
Answer:
12 dimes
Step-by-step explanation:
Let :
Dime = x
Nickel = y
Dime is worth 10 cent = $0.1
Nickel is worth 5 cent = $0.05
x + y = 28 - - - (1)
0.1x + 0.05y = 2 - - - (2)
From (1)
x = 28 - y
0.1(28 - y) + 0.05y = 2
2.8 - 0.1y + 0.05y = 2
2.8 - 0.05y = 2
2.8 - 2 = 0.05y
0.8 = 0.05y
y = 0.8 / 0.05
y = 16
x = 28 - 16
x = 12
SOMEONE PLEASE HELP ME ASAP THIS IS ALMOST DUE ILL MARK BRAINLIEST!!!!
Answer:
Between 25 and 50 lightbulbs were defective
What sentence represents this equation?
8 3/4=17−x
The sentence that represents this equation 8 3/4 = 17 - x is B) 8 3/4 is the same as 17 decreased by a number.
What is an equation?An equation is the statement that illustrates that the variables given. In this case, two or more components are taken into consideration to describe the scenario.
It is vital to note that an equation is a mathematical statement which is made up of two expressions that are connected by an equal sign.
In this case, 8 3/4 is the same as 17 decreased by a number will be 8 3/4=17−x.
Therefore, the correct option is B.
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Complete question
What sentence represents this equation?
8 3/4 = 17 - x
A) A number is the same as the difference of 17 and 8 3/4.
B) 8 3/4 is the same as 17 decreased by a number.
C) 17 decreased by 8 3/4 is the same as a number.
D) 8 3/4 is the same as a number decreased by 17.
What is 98 in exponential form
We can express the number 98 in exponential form as 10 raised to the power of 2. This means that by multiplying the base, which is 10, by itself twice, we obtain the value of 98.
To express 98 in exponential form, we need to determine the base and exponent that can represent the number 98.
Exponential form represents a number as a base raised to an exponent. Let's find the base and exponent for 98:
We can express 98 as 10 raised to a certain power since the base 10 is commonly used in exponential notation.
To find the exponent, we need to determine how many times we can divide 98 by 10 until we reach 1. This will give us the power to which 10 needs to be raised.
98 ÷ 10 = 9.8
Since 9.8 is still greater than 1, we need to continue dividing by 10.
9.8 ÷ 10 = 0.98
Now, we have reached a value less than 1, so we stop dividing.
From these calculations, we can see that 98 can be expressed as 10 raised to the power of 1 plus the number of times we divided by 10:
98 =\(10^1\) + 2
Therefore, we can write 98 in exponential form as:
98 = \(10^3\)
In summary, 98 can be expressed in exponential form as 10^2. The base is 10, and the exponent is 2, indicating that we multiply 10 by itself two times to obtain 98.
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