Answer:0
Step-by-step explanation:
took the test
Answer: 0
Step-by-step explanation:
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Please solve this
∫ (log(1 + x ^ 2))/((x + 1) ^ 2) dx
The final result of the integral is:
∫ (log(1 + x²) / (x + 1)²) dx = log(x + 1) - 2 (log(x + 1) / x) - 2Li(x) + C,
where Li(x) is the logarithmic integral function and C is the constant of integration.
We have,
To solve the integral ∫ (log(1 + x²) / (x + 1)²) dx, we can use the method of substitution.
Let's substitute u = x + 1, which implies du = dx. Making this substitution, the integral becomes:
∫ (log(1 + (u-1)²) / u²) du.
Expanding the numerator, we have:
∫ (log(1 + u² - 2u + 1) / u²) du
= ∫ (log(u² - 2u + 2) / u²) du.
Now, let's split the logarithm using the properties of logarithms:
∫ (log(u² - 2u + 2) - log(u²)) / u² du
= ∫ (log(u² - 2u + 2) / u²) du - ∫ (log(u²) / u²) du.
We can simplify the second integral:
∫ (log(u²) / u²) du = ∫ (2 log(u) / u²) du.
Using the power rule for integration, we can integrate both terms:
∫ (log(u² - 2u + 2) / u²) du = log(u² - 2u + 2) / u - 2 ∫ (log(u) / u³) du.
Now, let's focus on the second integral:
∫ (log(u) / u³) du.
This integral does not have a simple closed-form solution in terms of elementary functions.
It can be expressed in terms of a special function called the logarithmic integral, denoted as Li(x).
Therefore,
The final result of the integral is:
∫ (log(1 + x²) / (x + 1)²) dx = log(x + 1) - 2 (log(x + 1) / x) - 2Li(x) + C,
where Li(x) is the logarithmic integral function and C is the constant of integration.
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Frank plans to spend no more than $85 on plants for his front garden. He purchases a salvia and three azaleas. The azaleas cost $22 each. Let c be the cost for a salvia. Which inequality below could be used to show how much money Frank spent on salvia?
Answer: 3×22+c≤85
Step-by-step explanation: i think the answer is 3×22+c≤85 because 3x 22 represent the total cost of azaleas + c the cost of salvia is less than or equal to 85 because the buget is 85 and it cannot be greater
Hope this helped
The inequality for the given situation is 66+c ≤ 85.
Given that, Frank plans to spend no more than $85 on plants for his front garden. He purchases a salvia and 3 azaleas. The azaleas cost $22 each.
What is inequality?In mathematics, inequality refers to a relationship that makes a non-equal comparison between two numbers or other mathematical expressions.
Let c be the cost for a salvia.
Three azaleas + A salvia ≤ 85
3×22+c ≤ 85
⇒ 66+c ≤ 85
Therefore, the inequality for the given situation is 66+c ≤ 85.
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16. If y varies directly as x, and x = 9 when y = 15, find y when x = 33?
Answer:
y=55 when x is 33
Step-by-step explanation:
Use the direct variation formula:
\(\frac{y}{x} =k\) or \(\frac{y}{x} =\frac{y}{x}\)
Insert the given values:
\(\frac{15}{9}=\frac{y}{33}\)
To simplify the equation, cross multiply:
\(15(33)=9(y)\\\\495=9y\)
Isolate the variable. Divide both sides by 9:
\(\frac{495}{9} =\frac{9y}{9} \\\\55=y\)
Therefore, when x is 33, y is 55.
:Done
PLEASEE HELP ME!!!!!!
Answer:
I). X= 1,0. II) 1.72
Step-by-step explanation:
Using quadratic formula
1 Square yard = what Square inches
Answer: 1296 square inches
Step-by-step explanation:
1 square yard is 36 times 36 square inches
36 times 36 is 1296 square inches
How do I solve the converse of the Pythagorean theorem of a right triangle
Answer:
I think its Yes!
Step-by-step explanation:
Hope this helps!!!
. A pie company made 57 apple pies and 38 cherry pies each day for 14 days. How many apples pies does the company make in all?
To determine the total number of apples pies done, multiply the number of apple pies done each day by 14:
\(57\cdot14=798\)Hence, the company made a total of 798 apple pies.
ANALYSIS
Graphs and tables not only represent data, but they also allow you to answer questions about the data. Use your tables and graphs on the resource pages from problem 1-13 to answer the questions below.
Which data appears to be linear? That is, when graphed, which data can be modeled best using a line? Explain why it makes sense for this situation to have a linear graph.
Now that Perry knows his options for the design of his hot tub, he wants to pick the hot tub that has the smallest perimeter (without cutting any tiles). What do you recommend?
The town of Parsnipville will have a flu vaccine available on Day 7. Only people who have not yet gotten the flu will need to be vaccinated. Since the town has
citizens, how many people will need the vaccine on that day? Is it easier to answer this question using your graph or using your table? Explain.
Certain legal documents, such as those used when buying property, sometimes require up to
signatures! How long do you think it might take to sign all the documents?
Considering each situation (lab), which of your graphs could have a point where
? Explain.
Assume that Perry’s hot tub tiles measure one foot on a side. If Perry could cut his tiles, what is the longest hot tub he could possibly build?
The data that appears to have a consistent rate of change over time or with respect to another variable often appears to be linear.
When data is graphed, which data can be modeled best using a line?The data that has a clear trend or pattern that can be represented by a straight line is best modeled using a line.
Why does it makes sense to have a linear graph?Linear graphs are useful because they allow us to easily visualize and analyze trends or patterns in data. The equation of a line can also be used to make predictions or forecasts based on the data. Linear graphs can be used to identify correlations between variables and to assess the strength and direction of those correlations.
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1. The length of a rectangular room is 8 meters more than the width. If the area of the room is 48 square meters, find the dimensions of the room.
Answer:
let the breadth of room be 'x'm
so the lenghth of room is 'x+8'm
Given
Area of room=48m²
i.e length ×breadth =48m²
or,(x+8)x=48
or,x²+8x-48=0
or,x²+12x-4x-48=0
or,x(x+12)-4(x+12)=0
or,(x+12)(x-4)=0
Either x+12=0
or,x=-12(which is not possible)
Or,x-4=0
or,x=4
Thus,breadth is 4m.
length=x+8=4+8=12m
The dimensions of room are 8m and 12m respectively.
Using the rules of inference show that s is a conclusion
1. p → q
2. q → r
3. (q → r) → s
4. p
how to solve?
"s" can be concluded from the premises
How to show that s is the conclusionTo use the rules of inference to show that "s" is a conclusion, we can use modus ponens,
This is a rule that allows us to infer a conclusion from a premise and its conditional statement.
Using modus ponens, we can infer "q" from "p → q" and "p".Next, using modus ponens, we can infer "r" from "q → r" and "q".Finally, using modus ponens, we can infer "s" from "(q → r) → s" and "q → r".Thus, "s" can be concluded from the premises "p → q", "q → r", "(q → r) → s", and "p".
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Twice c is greater than 28
I think C would equal 15, because 14 + 14 = 28; 15 + 15 = 30 which is greater than 28.
Someone help me with this quadratic functions
The graph of the quadratic equation y = 6x² is an upward parabola with vertex (0,0) and axis of symmetry as y-axis.
What is a quadratic equation?
The polynomial equations of degree two in one variable of type f(x) = ax² + bx + c = 0 and with a, b, c, ∈ R and a ≠ 0 are known as quadratic equations. It is a quadratic equation in its general form, where "a" stands for the leading coefficient and "c" is for the absolute term of f(x). Where it equals zero is where the quadratic equation finds its solutions. They are also known as the equation's roots.
Assuming the question is to graph the quadratic function y = 6x².
The x-intercept can be found by substituting y = 0
0 = 6x²
x = 0
x-intercept = (0,0)
y-intercept can be found by substituting x=0
y = 6 * 0
y = 0
y-intercept = (0,0)
The given quadratic equation is the equation of an upward parabola with the vertex as (0,0).
The axis of symmetry is x = 0 i.e y-axis.
Hence the graph of the quadratic equation y = 6x² is an upward parabola with vertex (0,0) and axis of symmetry as y-axis.
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misha and his sister are using 5 foot and 8 foot landscaping timbers to enclose a vegetable garden they bought 40 timbers the total cost for the timbers was $288 which pair of equations could be used to find the number of timbers of each size that they brought?
Answer:
x+y=40 and 6x+9y=288
On average, Nathaniel drinks
4/5 of a 10-ounce glass of water in
2 2/5
hours. How many glasses of water does he drink in one hour? Enter your answer as a whole number, proper fraction, or mixed number in simplest form.
Nathaniel drinks 3 glasses of water in one hour.
To find out how many glasses of water Nathaniel drinks in one hour, we need to calculate his drinking rate per hour.
In 2 2/5 hours, Nathaniel drinks 4/5 of a 10-ounce glass of water.
Let's convert the mixed number of hours to an improper fraction:
\(2\frac{2}{5} = \frac{(5 \times2 + 2)}{5}\)
\(=\frac{12}{5}\)
Now, we can set up a proportion to find his drinking rate per hour.
We know that \(\frac{12}{5}\) hours corresponds to \(\frac{4}{5}\) of a glass of water.
Let's assign "x" as the number of glasses he drinks in one hour.
The proportion is then
\(\frac{(\frac{12}{5} hours) }{(x glasses) } =\frac{(\frac{4}{5} glass)}{(1 hour)}\)
Cross-multiplying gives us
\((\frac{12}{5} )\times1=\frac{4}{5}\times(x)\)
Simplifying, we get
\(\frac{12}{5} =\frac{4}{5}\times x\)
Dividing both sides by \(\frac{4}{5}\), we find x:
\(x=\frac{(\frac{12}{5} )}{\frac{4}{5} }\)
\(x=\frac{12}{4}\)
\(x = 3.\)
Therefore, Nathaniel drinks 3 glasses of water in one hour.
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Can anyone help I’ve been struggling
This month my metro water services bill was $36.34 and my Madison Suburban Utilty District bill was $26.03. My total water bill was $
Total water bill for the month is $62.37.
It seems that you may have accidentally left out the total amount of your water bill.
The total amount by simply adding the amounts of the individual bills together:
Total water bill =\($36.34 + $26.03\)
= \($62.37\)
You have not provided enough information to determine your total water bill.
You have only given the amounts of your individual bills from Metro Water Services and Madison Suburban Utility District.
To find your total water bill, you simply need to add the two bills together.
So, the total amount you owe for water this month would be:
Total water bill = \($36.34 + $26.03\)
= \($62.37\)
It appears that you may have forgotten to include the full amount of your water bill by accident.
Simple addition of the separate bill amounts yields the following sum:
Water bill total = \($36.34 + $26.03\)
= \($62.37\)
Your total water bill cannot be calculated because not enough information has been given.
Only the amounts of your individual Metro Water Services and Madison Suburban Utility District bills have been provided.
You just need to combine the two invoices together to get your total water bill.
As a result, this month's total water bill for you would be:
Water bill total = \($36.34 + $26.03\)
= \($62.37\)
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Construct a confidence interval that will capture the true population mean with 95% confidence. Population standard deviation is unknown.
Data: 18
19,19,19,19,19,19,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21, 22,22,22,22,23,23,23,23,23,23,23,23,23,23,23,23,23,24,24,24,24,24,24,24,24,24,24,24,24,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,25,26,26,26,26,26,26,26,26,,26,26,26,27,27,27,27,27,28,28,28,28,28,28,28,28,28,28,29,29,29,30,30,30,31
A confidence interval that will capture the true population mean with 95% confidence. The value is ( 23.6459 , 24.8293 ) .
What is population mean?
A population in statistics is a group of comparable objects or occurrences that are relevant to a particular topic or experiment. A statistical population can be a collection of real things or a hypothetical, possibly limitless collection of objects derived from experience.
Data: 18
for given data
\($$\begin{aligned}\bar{X} & =\frac{\sum X i}{n} \\& =2448 / 101 \\& =24.2376\end{aligned}$$\)
as population variance is unknown so we used sample variance
\($$\begin{aligned}S^2 & =\frac{1}{n-1}\left(\sum X i^2-n \times \bar{X}^2\right) \\S^2 & =\frac{1}{100}\left(60232-101 \times 24.2376^2\right) \\& =8.9830\end{aligned}$$\)
Now
\(\frac{\bar{X}-\mu}{S / \sqrt{n}} \sim t_{n-1}$$\)
hence 95 % of population mean is
As n=101 which is large so critical value is 1.98397
\($$\begin{aligned}& =\left(\bar{X}-\sqrt{\frac{S}{n}} \times t_{(n-1, \alpha / 2)}, \bar{X}+\sqrt{\frac{S}{n}} \times t_{(n-1, \alpha / 2)}\right) \\& =\left(24.2376-\sqrt{\frac{8.9830}{101}} \times 1.98397,24.2376+\sqrt{\frac{8.9830}{101}} \times 1.98397\right) \\& =(23.6459,24.8293)\end{aligned}$$\)
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Find the distance between the two points in simplest radical form.
(2,-5) and (7,7)
Answer:
13
Step-by-step explanation:
use distance formula \(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\d= \sqrt{(7-2)^2+(7-(-5))^2} =13\)
HELP!!!! Write an exponential function to describe the given sequence of numbers.
Answer:
y = 5^(x+1)
Step-by-step explanation:
y = 5^(x+1)
x = 1 for the initial step
please simplify this expression: -2x+11+6x
Answer:
4x+11
Step-by-step explanation:
−2x+11+6x
Combine Like Terms:
=−2x+11+6x
=(−2x+6x)+(11)
=4x+11
After simplifying the expression is 11 + 4x .
Given,
-2x+11+6x
Now,
Equation : -2x+11+6x
Combine the like terms and simplify further ,
So,
11 -2x + 6x
11 + 4x
Thus the simplified form is 11 + 4x .
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What number am I?
2.
I am a 6-digit number.
One of my 4's is worth 40,000. The other
My 9 is worth 9[100,000].
My 2 is worth 20.
All the other digits are 1.
Answer:
Step-by-step explanation:
The first digit is 9
the 2nd one from the right = 2
So far what you have is
911, 121
941,121
There seems to be a second 4 implied. What is it? I'll edit if you get it to me in the next hour.
Suppose you would like to make pancakes according to the given recipe:
Blueberry Pancakes Recipe, makes 6 servings
2 cups flour
2 tablespoons baking powder
1 teaspoon salt
2 eggs
1 1/2 cups milk
1 1/4 cups blueberries
Convert the amount of each ingredient of the recipe to make 15 servings. Round any decimal answers to two places.
Hint: You may want to make use of the conversion factor 15/6.
Answer:
4 1/2 cups of flour
4 1/2 tablespoons baking powder
4 1/2 teaspoon salt
4 1/2 eggs
5 cups of milk
5 cups of blueberries
Step-by-step explanation:
Are all intersecting lines perpendicular? Draw a picture to help explain your answer
Not all intersecting lines are perpendicular.
What are perpendicular lines?Perpendicular lines require a 90-degree angle of intersection, creating the formation of right angles.
Nonetheless, unlike perpendicular lines that necessitate exactly 90 degrees of intersections, other types of driven lines can be at varying angles beside these.
As such, it is critical to highlight that in general intersecting lines come with different angles of intersection, and only those featuring exact 90-degree angle of intersection become normal cases of intersecting lines, becoming one among many subtypes existing today.
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Question 2 (1 point) (06.04 MC) Find the product of (x − 5)2. Question 2 options: x2 + 10x + 25 x2 − 10x + 25 x2 − 25 x2 + 25
\( { (x - 5) }^{2} = {x}^{2} - 10x + 25\)
Nick's science test has a section with twelve true-or-false questions. In how many different ways can Nick answer the questions?
Answer:
you can do 2^12=4096
there are 4096 different ways nick can answer the question
A truck with 42-in.-diameter wheels is traveling at 55 mi/h.
Find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes:
rad/min
How many revolutions per minute do the wheels make?
After answering the provided question, we can conclude that rotations equation per minute = angular speed divided by (2pi) = 1656.19 rad/min divided by (2pi) = 263.02 revolutions/min
What is equation?An equation in mathematics is a statement that states the equality of two expressions. An equation is made up of two sides that are separated by an algebraic equation (=). For example, the argument "2x + 3 = 9" asserts that the phrase "2x + 3" equals the value "9". The purpose of equation solving is to determine the value or values of the variable(s) that will allow the equation to be true. Equations can be simple or complicated, regular or nonlinear, and include one or more elements. The variable x is raised to the second power in the equation "x2 + 2x - 3 = 0." Lines are utilised in many different areas of mathematics, such as algebra, calculus, and geometry.
Secondly, we must convert the speed from miles per hour to inches per minute since we want our final result in radians per minute.
1 mile equals 63360 inches (by definition)
1 hour equals 60 minutes
Therefore:
55 miles per hour = 55 * 63360 inches per hour / (1 mile per hour) = 3,484,800 inches per minute
We can now calculate the linear speed of a point on the wheel's rim:
Wheel circumference = pi * diameter = pi * 42 in. = 131.95 in.
3.484,800 in/min linear speed
angular speed = linear speed / (diameter/2) = (3,484,800 in/minute) / (42 in./2) = 1656.19 rad/min (rounded to two decimal places)
To get the number of revolutions per minute, divide the angular speed by 2*pi:
rotations per minute = angular speed divided by (2pi) = 1656.19 rad/min divided by (2pi) = 263.02 revolutions/min
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HELP ME PLEASE, YOU WILL GET 100 points
Answer:
I believe that it is the first one. N+89=12.
the answer is 89-n=12
3,532.5 = (3.14)(r^2)(x/3)
To solve the equation 3,532.5 = (3.14)(r^2)(x/3) for the variable r, we can follow these steps:
Multiply both sides of the equation by 3/3 to eliminate the fraction:
3,532.5 * 3/3 = (3.14)(r^2)(x/3) * 3/3
This simplifies to:
10,597.5 = (3.14)(r^2)(x)
Divide both sides of the equation by (3.14)(x) to isolate the variable r:
10,597.5 / (3.14)(x) = (r^2)
Take the square root of both sides of the equation to solve for r:
r = sqrt(10,597.5 / (3.14)(x))
Therefore, the solution to the equation 3,532.5 = (3.14)(r^2)(x/3) for the variable r is:
r = sqrt(10,597.5 / (3.14)(x))
Guys I need help so pleaseeee I give brainliest
Integral of 1/(x+cosx)
The integral is ln|x + cos(x)| + C, where C represents the constant of integration.
To find the integral of the function 1/(x + cos(x)), we can employ a combination of algebraic manipulation and the use of standard integration techniques. Here's the solution:
First, let's rewrite the integral in a slightly different form to simplify the process:
∫(1/(x + cos(x))) dx
We notice that the denominator, x + cos(x), is not amenable to direct integration. To overcome this, we employ a substitution. Let's set u = x + cos(x). Now, differentiate u with respect to x: du/dx = 1 - sin(x).
Rearranging this equation, we get dx = du/(1 - sin(x)).
Substituting these values, the integral becomes:
∫(1/(u(1 - sin(x)))) du
Next, we simplify further by factoring out 1/(1 - sin(x)) from the integral:
∫(1/(u(1 - sin(x)))) du = ∫(1/u) du = ln|u| + C
Replacing u with its original expression, we have:
ln|x + cos(x)| + C
Therefore, the answer to the integral is ln|x + cos(x)| + C, where C represents the constant of integration.
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