Answers
Answer: you would times the base times height
Step-by-step explanation: learned it in middle school
Related Questions
A dairy farm produced 254.8 liters
of milk in 4 hours. How much milk, on
average, did the dairy produce per
hour?
Answers
Answer=63.7
Answer:
63.7
plss mark me brainliest
Step-by-step explanation:
254.8÷4=63.7
The time taken by a student to finish a statistics exam can be modeled using the following cumulative distribution function: F(x) = 1 - e^-0.9, x > 0 Suppose that the time taken for a student to finish the exam is constant from student to student. Then the mean number (to the nearest whole number) of students who will finish the exam in less than 1 hour for 12 students randomly selected is equal to: a 7 b 8 c None of the other options
d 6
Answers
The time taken by a student to finish a statistics exam can be modeled using the following cumulative distribution function: F(x) = 1 - e^-0.9, x > 0
Suppose that the time taken for a student to finish the exam is constant from student to student.
Then the mean number (to the nearest whole number) of students who will finish the exam in less than 1 hour for 12 students randomly selected is 7
.Step-by-step explanation:
The cumulative distribution function is given by, F(x) = 1 - e^-0.9, x > 0
Now, let X be the time taken by a student to finish the statistics exam
Then, X ~ Exp (0.9 )
We know that the cumulative distribution function (CDF) of the exponential distribution with parameter λ is given by,F(x) = P(X ≤ x) = 1 - e^(-λx) , x > 0Here, λ = 0.9.
Therefore, the CDF of X is given by,F(x) = P(X ≤ x) = 1 - e^(-0.9x) , x > 0
The probability that a student finishes the exam in less than 1 hour is, P(X ≤ 1) = F(1) = 1 - e^(-0.9) ≈ 0.5271
This means that out of 12 students randomly selected,
The expected number of students who finish the exam in less than 1 hour is,μ = np= 12 × 0.5271≈ 6.3252
Hence, the mean number (to the nearest whole number) of students who will finish the exam in less than 1 hour for 12 students randomly selected is 7.
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Consider the expression a+bc/2 - (ac - 3/b). • Use a stack to convert the expression into a postfix notation. • Show all stages in the evolution of the stack.
Answers
To convert the given infix expression a+bc/2 - (ac - 3/b) into postfix notation, we will use a stack to store and manage operators. Here's the step-by-step process:
1. Start scanning the expression from left to right.
2. If an operand (a, b, c, 2, or 3) is encountered, append it to the output.
3. If an operator (+, -, *, or /) is encountered, push it onto the stack if it's empty or if the operator at the top of the stack has a lower precedence. Otherwise, pop operators from the stack and append them to the output until the stack is empty or the operator at the top of the stack has a lower precedence. Then, push the current operator onto the stack.
4. If an open parenthesis '(' is encountered, push it onto the stack.
5. If a close parenthesis ')' is encountered, pop operators from the stack and append them to the output until an open parenthesis '(' is encountered. Pop the open parenthesis but do not append it to the output.
6. After scanning the entire expression, if there are still operators in the stack, pop them and append them to the output.
Applying these rules, we get the following postfix expression:
a b c * 2 / + a c * 3 b / - -
Here's the evolution of the stack during each step:
1. Push '+'
2. Push '*', pop '+' (higher precedence), push '+'
3. Push '/'
4. Pop '*', pop '/', push '-'
5. Push '*', pop '-' (higher precedence), push '-'
6. Push '/'
7. Pop '*', pop '/', pop '+', pop '-'
The resulting postfix expression is: a b c * 2 / + a c * 3 b / - -
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7 times the difference between x and 4
Answers
Step-by-step explanation:
7 - x = 4
hope this answer helps you!
Answer:
7(x-4)
Difference is subtraction
Difference of x and 4 is x-4
What is the volume of the pyramid shown below?
Answers
Answer:
Step-by-step explanation:
\(V=\frac{lwh}{3}\)
l = base length
w = base width
h = pyramid height
\(V = \frac{7.6.9}{3}=\) 126
how do you ensure accurate predictions using data correlation? which are the most effective methods?
Answers
The only kind of data generated by observational research is correlations or patterns in the data that have been observed. By using correlations, one variable's value can be used to predict the value of another.
Explanation:
Accurate predictions using data correlation can be ensured by using a variety of methods. Firstly, it is important to ensure that the data is free from errors and is of high quality. This can be done by cleaning and validating the data to remove any inconsistencies and outliers. Secondly, it is important to analyze the data thoroughly and identify any patterns or trends. Furthermore, it is beneficial to use appropriate statistical tests and algorithms such as linear regression, logistic regression, and decision trees to identify the predictive relationships between the variables. Finally, it is important to evaluate the model’s performance to determine the accuracy of the predictions.
The most effective methods for ensuring accurate predictions using data correlation are:
1. Perform Exploratory Data Analysis: Exploratory data analysis is an essential step in any predictive modeling process. It involves exploring the data to identify patterns, trends, and relationships within the data. This helps to identify any potential issues or biases within the data that could affect the accuracy of predictions.
2. Use Statistical Tests: Statistical tests can be used to measure the strength of the relationship between two variables. These tests can help to identify which variables are most strongly correlated with each other and can help to determine which variables should be used in a predictive model.
3. Use Machine Learning Algorithms: Machine learning algorithms can be used to create predictive models that can identify and learn patterns in the data. These algorithms are particularly effective at identifying complex relationships between variables that may not be identified by statistical tests.
4. Validate Predictions: Predictions should always be validated to ensure that they are accurate and reliable. This can be done by comparing the predictions against known outcomes or by testing the model on a separate data set.
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What is the equation for the line that passes through the coordinates (-4,-12)and(16,3)
Answers
The equation of the line that passes through these coordinates is 3x-4y= 36
How to calculate slope?
If you have the coordinates of two points on a line, you can use the slope formula to determine that line's slope. m=(y2-y1)/(x2-x1), or the ratio of the change in the y values to the change in the x values, is the slope formula.
To find the equation of the line we first have to find the slope which is represented by m.
The slope or m is given by : y₂ - y₁ / x₂ - x₁
thus, m= 3-(-12)/ 16-(-4)
m= 3+12/ 16+4 = 15/20
m= 3/4
The equation of a slope is y-y₁=m (x-x₁)
y- (-12) = 3/4 (x- (-4))
y+12 = 3/4 (x+4)
On solving it further we get:
4y+48= 3x+12
3x-4y= 36
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The midpoint of (13,8) and (-6,-6)
Answers
Answer:
the midpoint is (3.5,1)
Step-by-step explanation:
Frank and Patrick work as mechanics for different companies. Frank earns $32000 per annum whilst Partick is paid $13. 75 per hour. Assume a 40 hour week and 4 weeks in a month. Who earns more per month? Show working
Answers
Frank earns more per month than Patrick. Frank's monthly salary is $2,666.67, while Patrick's monthly salary is $2,200.
To determine who earns more per month, we need to calculate the monthly earnings for both Frank and Patrick.
Frank's annual salary is given as $32,000. To calculate his monthly salary, we divide the annual salary by 12 (number of months in a year):
Frank's monthly salary = $32,000 / 12 = $2,666.67
Patrick's hourly rate is $13.75. Assuming a 40-hour workweek and 4 weeks in a month, we can calculate his monthly earnings by multiplying his hourly rate by the number of hours worked in a month:
Patrick's monthly earnings = $13.75/hour * 40 hours/week * 4 weeks/month = $2,200
Comparing the two, we find that Frank earns more per month with a salary of $2,666.67, while Patrick earns $2,200 per month. Therefore, Frank earns more than Patrick on a monthly basis.
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Where is the function increasing?
A)1
B)3< X
C)-infinity < x < 1
D)-infinity
Answers
Answer:
A) \(1<x<\infty\)
Step-by-step explanation:
Given:
A graph of a function.
When we analyze the given graph, it is of a parabola.
To find:
The interval of values of \(x\) where the function is increasing.
Solution:
First of all, let us learn about the meaning of increasing and decreasing functions.
1. A function \(y=f(x)\) is known as increasing in an interval \(a<x<b\) when
Value of y keeps on increasing when we move from the value of x from a to b.
2. A function \(y=f(x)\) is known as decreasing in an interval \(a<x<b\) when
Value of y keeps on decreasing when we move from the value of x from a to b.
On analyzing the given graph , we can see that the graph is decreasing on the interval: \(-\infty<x<1\)
and is increasing on the interval: \(1<x<\infty\)
When we choose from the options,
The correct answer is option A) \(1<x<\infty\)
Write the slope intercept of the equation of the line through the given points. Through (-2,-4) and (-3,-5)
Answers
The slope between two(2) points;
\(\begin{gathered} P(x_1,y_1)_{} \\ \text{and Q(x}_2,y_2) \end{gathered}\)is given as:
\(m=\frac{y_2-y_1}{x_2-x_1}\)From the question, the given points are:
\(\begin{gathered} (-2,-4)\text{ and (-3,-5)} \\ \Rightarrow x_1=-2,y_1=-4 \\ \Rightarrow x_2=-3,y_2=-5 \end{gathered}\)Thus, the slope, m, is:
\(\begin{gathered} m=\frac{-5-(-4)}{-3-(-2)} \\ m=\frac{-5+4}{-3+2} \\ m=\frac{-1}{-1} \\ m=-1 \end{gathered}\)The equation of a line with two(2) given points is given as:
\(m=\frac{y-y_1}{x-x_1}\)Thus,
\(\begin{gathered} -1=\frac{y-(-4)}{x-(-2)} \\ -1=\frac{y+4}{x+2} \\ \text{cross}-\text{multiply} \\ y+4=-1(x+2) \\ y+4=-x-2 \\ y=-x-2-4 \\ y=-x-6 \end{gathered}\)Hence, the slope-intercept form of the equation of the line through the given points is:
\(y=-x-6\)You are buying a new camera. The table shows the prices of cameras in a store advertisement. You are willing to pay the mean price with an absolute deviation of at most $102.
Your friend helped you with a list of steps to follow so you’ll find how many of the camera prices meet your condition?
Answers
8 cameras from the list meet the conditions of camera price.
Given,
The table shows the price of cameras;
890, 750, 650, 370, 660, 670, 450, 650, 725, 825
The absolute deviation of at most = $102
We have to find the number of cameras that meets the conditions
Mean of the data set ;
Mean = sum of datas / number of datas
Mean = (890 + 750 + 650 + 370 + 660 + 670 + 450 + 650 + 725 + 825) / 10
Mean = 6640/10
Mean = 664
Mean - Absolute deviation;
664 + 102 = 764
So, You are ready to pay for a maximum of 764 for the camera.
Then the price of cameras meets the condition;
750, 650, 370, 660, 670, 450, 650, 725
That is,
8 cameras from the list meet the conditions of camera price.
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PLEASE HELP!!! ill give you brainliest
Answers
Answer:43 teaches
Step-by-step explanation:I research it
student x pushes a 10-n box with a force of 2 n. at the same time, student y pushes the same box with a force of 6 n, but in the opposite direction. which would most likely occur? (ignore friction.)
Answers
What are the prime factors of 18? A. (2²) * (3²) B.(2²) * 3 C. 2 * 9 D. 2 * (3²)
Answers
The Prime factors of 18 are (2²) * 3 or 2 * 2 * 3. Thus, option B is the correct answer.
Prime numbers are numbers that are not divisible by any other number other than 1 and the number itself.
Composite numbers are numbers that have more than 2 factors that are except 1 and the number itself.
Prime factors are the prime numbers that when multiplied get the original number.
To calculate the prime factor, we use the division method.
In this method, firstly we divide the number by the smallest prime number it is when divided it leaves no remainder. In this case, we divide 18 by 2 and get 9.
Again, divide the number we get that, in this case, is 9, in the previous step by the prime number it is divisible by. So, 9 is again divided by 3 and we get 3.
We have to perform the previous step until we get 1. And 3 ÷ 3 = 3. Since we get 1, we stop here.
Finally, Prime factorization of 18 is expressed as 2 × 2 × 3 or we can write it as (2²) * 3
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A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 180 lb and each box of books weighs 60 lb. The maximum capacity of the elevator is 1430 lb. How many boxes of books can the delivery person bring up at one time?
Answers
1430-180= 1250
1250/60= 20.8333
Therefore it would we 20
Expand using the Product property...In 2xy
Answers
As a result, the product property can be used to manipulate and equation statements containing 2xy, as well as to express 2xy in terms of its factors.
What is equation?An equation is a statement that shows the equality between two mathematical expressions. It is a fundamental concept in mathematics and is used to describe relationships between quantities.
The purpose of an equation is to find the value of the unknown variable(s) that make the equation true. This is typically done by applying algebraic operations to manipulate the equation, with the goal of isolating the variable on one side of the equal sign.
\(2xy = 2 * x * y\)
\(2xy = 2x * y = 2y * x = x * 2y = y * 2x = x * y * 2\)
\(4x^2y * 3xy^2 = (4 * x * x * y) * (3 * x * y * y)\)
\(= 12 * x^3 * y^3\)
As a result, the product property can be used to manipulate and simplify statements containing 2xy, as well as to express 2xy in terms of its factors.
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Multiply and simplify.
(t+8)(3+³+41+5)
Hint:
1. Multiply
t(3t³+4t+5)
2. Multiply 8(3t³ +4t+5)
3. Combine LIKE terms.
Answers
3t^4 + 24t + 4t^2 + 37t + 40
Steps to multiply and simplify:
Multiply t with each term inside the second bracket: t(3) + t(³) + t(4) + t(1) = 3t + ³t + 4t + t = 8t
Multiply 8 with each term inside the second bracket: 8(3) + 8(³) + 8(4) + 8(1) = 24 + ³24 + 32 + 8 = 72 + ³24
Combine like terms: 8t + 72 + ³24
Final simplified expression: 8t + 72 + ³24
can someone help me on this please :)
Answers
9514 1404 393
Answer:
x = 6y = 18Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)/(a^c) = a^(b-c)
(a^b)^c = a^(bc)
__
\(\left(\dfrac{a^3b^4}{a^2b}\right)^6= (a^{3-2}b^{4-1})^6 =a^{1\cdot6}b^{3\cdot6}=\boxed{a^6b^{18}}\)
Comparing to the given form, we see x=6, y=18.
What is the fractional form of 0.8 ?
Answers
Answer:
8/9
Step-by-step explanation:
Let x = 0.(8)
x = 0.8888888.......
10x = 8.88888888.....
10x - x = 8.888888..... - 0.888888888.... (repeating part cancels out)
9x = 8
x = 8/9
-Chetan K
Find the missing side pls
Answers
Answer:
what is question I did see
this is the pattern; triangle, square, pentagon. use this pattern to make a conjecture
Answers
Answer:
What did you mean?
At a wedding there were 40 people from gromms side and 56 people from bride's family at the wedding
find the ratio of the groom's family to the bride's family at the wedding
Answers
Answer:
5 : 7
Step-by-step explanation:
groom's side: 40
bride's side: 56
ratio groom to bride = 40/56 = 20/28 = 10/14 = 5/7
Answer: 5 : 7
Explanation- 50+56 Is 106. So 106- 10=96.
There is your answer 96.
Carlos earns $11 per hour at his job. Let z represent the number of hours he worked in May. Let y represent
the number of hours he worked in June. Which expressions represent the amount of money, in dollars, Carlos
earned in May and June? Select all correct answers.
Answers
Answer: 11z + 11y
Step-by-step explanation:
Carlos earns his pay by the hour. That means that to find the cash made in a given month, the formula is:
= Carlos payment per hour * Number of hours worked in a month
In May he worked z hours:
He earns $11 per hour and works z hours, expression for earnings for the month is:
= 11 * z
= 11z
In June he worked y hours:
= 11 * y
= 11y
The total he earned in both May and June is:
= 11z + 11y
The expressions represent the amount of money, in dollars, Carlos earned in May and June is 11z + 11y.
Given that,
Carlos earns $11 per hour at his job. Let z represent the number of hours he worked in May. Let y represent the number of hours he worked in June.Based on the above information, the calculation is as follows:
For May it is 11z
For June it is 11y
So, total it should be
11z + 11y
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HELP I NEED HELP ASAP
A. 15%
B. 0.15%
C. 0.85%
D. 85%
Answers
The time it takes to will a water tank varies inversely with the water rate of the hose. At 8 gallons per minutes, a hose can fill the tank in 45 minutes. How long will it take to fill the same tank at 15 gallons per minute?
Answers
Answer:
24 minutes
Step-by-step explanation:
Varies inversely
tr = k
At 8 gallons per minutes, a hose can fill the tank in 45 minutes
k = 45 * 8 = 360
How long will it take to fill the same tank at 15 gallons per minute?
t * 15 = 360
Divide both sides by 15
t = 24
Answer:
24 minutes
Step-by-step explanation:
Which of the following statements about the box-and-whisker plot below is not true? 70 72 74 76 78 80 02 16 O The midrange of the data set shown is 85.5. O Both 72 and 99 are values in the set of data. The median of the data set shown is 81. 94 There are fewer data points in the lower two quartiles than in the upper two quartiles.
Answers
The false statement regarding the box-and-whisker plot is given by:
There are fewer data points in the lower two quartiles than in the upper two quartiles.
What is the missing information?The box-and-whisker plot is not given for this problem, but from it, we have that:
The minimum value is 72.Q1: 75.Median: 81.Q3: 90.Maximum: 99.What does a box-and-whisker plot shows?A box and whisker plot shows five things:
The minimum value.The 25th percentile, which is the median of the bottom 50%.The median, which splits the entire data-set into two halfs, the bottom 50% and the upper 50%.The 75th percentile, which is the median of the upper 50%.The maximum value.The false statement is:
There are fewer data points in the lower two quartiles than in the upper two quartiles.
Because 50% values are below the median and 50% are above, meaning that there is an equal number of data points in the lower two quartiles than in the upper two quartiles.
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Thirteen years ago, you deposited $2400 into a superannuation
fund. Eight years ago, you added an additional $1000 to this
account. You earned 8%, compounded annually, for the first five
years, and 5.
Answers
The total amount money after thirteen years of savings will be $5030.63
To calculate the amount of money in the account today, we need to calculate the future value of each contribution separately and then add them together.
Let's start by calculating the future value of the initial deposit of $2400 over the first five years at an interest rate of 8% compounded annually.
Using the formula for compound interest:
Future Value = \(Principal\) * \((1 + Interest Rate)^{Time}\)
Future Value = $2400 * (1 + 0.08)⁽⁵⁾
Future Value = $2400 * (1.08)⁵
Future Value = $2400 * 1.46933
Future Value = $3526.40
So, after five years, the initial deposit will grow to $3526.40.
Now, let's calculate the future value of the additional deposit of $1000 over the last eight years at an interest rate of 5.5% compounded annually.
Future Value = $1000 * (1 + 0.055)⁸
Future Value = $1000 * (1.055)⁸
Future Value = $1000 * 1.50423
Future Value = $1504.23
So, after eight years, the additional deposit will grow to $1504.23.
Now, let's add the two amounts together to find the total amount in the account today:
Total Amount = $3526.40 + $1504.23
Total Amount = $5030.63
So, the total amount money after thirteen years of saving will be $5030.63
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Complete question:
Thirteen years ago, you deposited $2400 into a superannuation fund. Eight years ago, you added an additional $1000 to this account. You earned 8%, compounded annually, for the first five years, and 5.5%, compounded annually, for the last eight years. How much money do you have in your account today?
Find an equation of the line through (1, 7) and parallel to y=2x-2
Answers
Answer:
Step-by-step explanation:
y - 7 = 2(x - 1)
y - 7 = 2x - 2
y = 2x + 5
Identify the vertex of the graph tell whether it is a minimum or maximum
Answers
Answer:
The third one
Step-by-step explanation:
The coordinate point is (0, -2)
It is minimum because all of the other points on the graph are higher