Find the average rate of change of the following line WITHOUT CALCULATING. y=18 on [1000,10000]
Answer
The average rate of change of the function y = 18 on the interval [1000, 10,000] is ZERO
SOLUTION
Problem Statement
The question wants us to find the average rate of change of the function y = 18 on the interval [1000, 10,000].
Method
- The function given is a constant function. This means that for every value of x from -∞ to +∞, the value of the function will always be y = 18.
- Since y is a function of x (albeit a constant function of x), it can be written as y = f(x).
- With these in mind, we can find the average rate of change of the function using the formula given below:
\(\begin{gathered} \bar{\Delta}=\frac{f(b)-f(a)}{b-a} \\ \text{where} \\ \lbrack a,b\rbrack\text{ is the interval for which we want to know the rate of change of the function }f(x) \end{gathered}\)- Note that since the function is a constant function, we should expect that its rate of change should be ZERO since the function is constant throughout despite the value of x.
Let us apply the formula above to find the average rate of change of the given function.
Implementation
The average rate of change of the function y = 18 is gotten below:
\(\begin{gathered} b=10,000,a=1000 \\ f(b)=f(10,000)=18\text{ (Since the function does not change)} \\ f(a)=f(1000)=18\text{ (Since the function is constant)} \\ \\ \therefore\bar{\Delta}=\frac{18-18}{10,000-1000}=\frac{0}{9,000} \\ \\ \therefore\bar{\Delta}=0 \end{gathered}\)Final Answer
The average rate of change of the function y = 18 on the interval [1000, 10,000] is ZERO
Find the general solution of y" +6y+10y=20x +4.
The general solution of the given differential equation y" + 6y + 10y = 20x + 4 is y(x) = C₁cos(√10x) + C₂sin(√10x) - 2x - 2/5.
To find the general solution of the given differential equation, we can use the method of undetermined coefficients. First, we solve the associated homogeneous equation y" + 6y + 10y = 0.
The characteristic equation of the homogeneous equation is r² + 6r + 10 = 0, which has complex roots -3 ± √(-1) = -3 ± i√(1), denoted as α ± βi. The general solution of the homogeneous equation is y_h(x) = C₁e^(-3x)cos(√x) + C₂e^(-3x)sin(√x), where C₁ and C₂ are arbitrary constants.
Next, we find a particular solution of the non-homogeneous equation y" + 6y + 10y = 20x + 4. Since the right-hand side is a linear function, we assume a particular solution of the form y_p(x) = Ax + B. Plugging this into the equation, we find A = -2 and B = -2/5.
Therefore, the general solution of the given differential equation is y(x) = y_h(x) + y_p(x) = C₁e^(-3x)cos(√x) + C₂e^(-3x)sin(√x) - 2x - 2/5, where C₁ and C₂ are arbitrary constants. This solution satisfies the differential equation and includes both the homogeneous and particular solutions.
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PLS HELP SOS
I have a question that I can’t solve can somebody help please
Answer:
By showing your work, you can do 18 divided by 15 to see what the answer would be then you can get the answer then divide the answer by 2.5 which will give you the answer to h.
Hope it helps..
у= 3х - 1
у = 3х + 2
Answer:
first on the slope is 3 and y intercept is 0,-1
second on the slope is 3 and y intercept 0,2
Step-by-step explanation:
Find the equation of the line that goes through the point
(-2,5) and a slope = -4
Submit
Please help
Answer:
y=-4x-8
Step-by-step explanation:
use the equation y-y1=m(x-x1) and solve for y
Answer:
y=-4x-3
Step-by-step explanation:
For this, you would use the point-slope formula, which is (y-y1)=m(x-x1), with x1 and y1 being the coordinates from the ordered pairs, and m being the slope. You can plug the values from the problem into the formula:
(y-5)=-4(x+2)
y-5=-4x-8
y=-4x-3
hope this helps! :)
If the family decides to reduce its clothing budget by $200 a month, how much will the new clothing budget be? Round to the nearest dollar.
$161
$853
$970
$1,170
Answer:
The question is incomplete, below is a possible match to the complete question:
The Chambers family has a net monthly income of $6,500. A circle graph titled Chambers Family Budget. Housing is 25 percent, Food is 20 percent, Savings is 7 percent, Transportation is 12 percent, medical is 10 percent, clothing is 18 percent, emergency fund is 8 percent. If the family decides to reduce its clothing budget by $200 a month, how much will the new clothing budget be? Round to the nearest dollar.
$161
$853
$970
$1,170
The correct answer is $970
Step-by-step explanation:
To calculate the old budget for clothing, let us first convert from percentage to monetary value, and this is done as follows:
Clothing = 18% of monthly income
where: monthly income = $6,500
∴ clothing = 18/100 × 6,500
= 0.18 × 6,500 = $1,170
old budget = $1,170
If the family decides to reduce its clothing budget by $200 a month, the new budget will be:
New budget = old budget - $200
= 1,170 - 200 = $970.
Therefore, the new budget will be $970
Answer:
C. $970
Step-by-step explanation:
edge 2021
1. Numbers arranged in a specific order factorial 2. An array of numbers 0! 3. A symbol for a sum Sigma 4. A series whose terms are formed by addition series 5. 1 combinations 6. A series whose terms are formed by multiplication geometric series 7. Symbol is ! permutation 8. A set of elements that does not consider order sequence 9. A study of likelihoods Pascal's triangle 10. A sum of numbers in a specific order probability 11. A set of elements in a specific order arithmetic series
1) Factorial - Numbers arranged in a specific order.
2) 0! - An array of numbers.
3) Sigma - A symbol for a sum.
4) Addition series - A series whose terms are formed by addition.
5) Combinations - 1.
6) Geometric series - A series whose terms are formed by multiplication.
7) ! - Permutation.
8) Sequence - A set of elements that does not consider order.
9) Pascal's triangle - A study of likelihoods.
10) Probability - A sum of numbers in a specific order.
11) Arithmetic series - A set of elements in a specific ord
1. Factorial: A product of all positive integers up to a given number (n!). For example, 5! = 5 x 4 x 3 x 2 x 1 = 120.
2. Array of numbers 0!: 0! is defined to be 1. This is a convention to simplify mathematical expressions and formulas.
3. Sigma (Σ): A symbol used to represent the sum of a series of numbers, typically written as Σ(expression) with specified lower and upper limits.
4. Series: A sequence of terms formed by adding the terms of a sequence. An example of an addition series is 1 + 2 + 3 + 4 + 5.
5. Combinations: The number of ways to choose a specific subset of items from a larger set without regard to the order in which they are chosen.
6. Geometric Series: A series whose terms are formed by multiplying each term by a constant factor. For example, 1, 2, 4, 8, 16 is a geometric series with a constant factor of 2.
7. Permutation: An arrangement of elements from a set where the order of the elements matters.
8. Sequence: A set of elements that does not consider order. It is a list of numbers or objects arranged according to a specific rule.
9. Pascal's Triangle: A triangular array of numbers in which the first and last number in each row is 1, and each of the other numbers is the sum of the two numbers above it. Pascal's Triangle is used to study the likelihoods and combinatorics.
10. Probability: A measure of the likelihood that a particular event will occur. It is the sum of the probabilities of all possible outcomes in a specific order, expressed as a number between 0 and 1.
11. Arithmetic Series: A set of elements in a specific order where each term is formed by adding a constant difference to the preceding term. For example, 2, 5, 8, 11, 14 is an arithmetic series with a constant difference of 3.
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Find the length of a 100° arc for a circle with a 15 in. radius.
To find the length of an arc of a circle, we need to use the formula:
Arc length = (central angle/360°) x 2πr
where r is the radius of the circle.
In this case, the central angle is 100°, and the radius is 15 in. So we can plug in these values and simplify:
Arc length = (100/360) x 2π(15)
Arc length = (5/18) x 30π
Arc length = 50/3 π or approximately 52.36 in.
Therefore, the length of a 100° arc for a circle with a 15 in. radius is approximately 52.36 inches.
2. What is the average salary offered to a Stony Brook college graduate? To study this question you and a friend interview N students that graduated last year, and ask them what they earn. Student i's response was recorded as Yi. You are interested in the average, My. You assumed that the sample of Y's is iid. First you calculate the following estimate of uy: W1 N 1 N i=1 ΣΥ. . You and your friend each collected half the data. Thus you collected Y1, ..., YN/2 and your friend collected Yn/2+1, ... , Yn. Unfortunately, it turns out that your friend collected the data at a wild alumnae party, and you suspect that these data may not be as precise as your data. So whereas the variance of your data is, var(Y;) = 0%, i = 1, ...,N/2. then your friends data have the variance, var(Y) = oʻ(1 + 3c), i=N/2+1, ...,N, for some constant c> 0. (d) Your friend is sorry that half the data are not as precise as they could have been, and suggest that you discard the noise data, and simply use hr Na Ex? Y; as your estimator for my. Which estimator is most efficient (has the smallest variance) în or îz? Does your answer depend on c? = N.Σ. (Υ – μ.) - = (e) Suppose now that c = 0 such that var(Y;) = o2 for i = 1, ...,N. You have N = 300 observation and calculate s2 = 20,000,000 and î1 = $48,000. Before collecting the data, your friend argues mean salary, my, is s $50,000, using a 1% significance level. Write down the confidence interval at 1% significance level and decide whether you will accept your friend's argument.
The estimator, which uses the data collected by yourself, is the most efficient estimator for the average salary offered to Stony Brook college graduates. The answer does not depend on the value of c.
1. To compare the efficiency of the estimators, we need to compare their variances. Since the variance of your data is lower than the variance of your friend's data, your estimator î1 has a smaller variance and is therefore more efficient.
2. In the second scenario where c = 0, we can use the sample mean and sample variance to construct a confidence interval for the true mean salary. With N = 300 observations, s^2 = 20,000,000, and î1 = $48,000, we can calculate the confidence interval using the t-distribution with N-1 degrees of freedom and a 1% significance level. If the confidence interval does not contain the value of $50,000, you would reject your friend's argument.
(Note: The specific calculations for the confidence interval are not provided in the given information.)
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Factorise
X2 + 3√3x + 6. Please help me with this it’s urgent
Answer:
\((x+2\sqrt{3} )(x+\sqrt{3} )\)
Step-by-step explanation:
\(x^2 + 3\sqrt{3}x + 6\\=> x^2 + \sqrt{3}x + 2\sqrt{3}x +6\\=> x( x+\sqrt{3}) + 2\sqrt{3}(x+\sqrt{3} )\\ => (x+2\sqrt{3} )(x+\sqrt{3} )\)
are you allowed to simplify a fractional exponent when you are rewriting radicals to have a radical exponent? for example, \(\sqrt[8]{y^{2} }\) is written as y^2/8 , but are you allowed to simplify the 2/8 to 1/4?
Answer:
This is true
Step-by-step explanation:
Yes when you make a radical into a power you can simplify the power, like you are saying.
What is the value of f(x) = 4x -9
Answer:
F= 1 /4 y+ 9 /4
Step-by-step explanation:
brainliest?
Please help and show work only do the left side
bottom was cut off a bit its 4=b
Find the perimeter. Write your answer as a fraction or as a whole or mixed number. 3 am
1
18
N
zam
No
m
N
3
3
18
m
meters
The perimeter of the given shape is calculated to be 46 meters.
To find the perimeter of a shape, you need to add up the lengths of all of its sides. In this case, it appears that there are several numbers and letters included in the question that are not relevant to finding the perimeter. We will ignore these and focus on the numbers that represent the lengths of the sides of the shape.
The sides of the shape are 3 meters, 1 meter, 18 meters, 3 meters, 3 meters, and 18 meters. To find the perimeter, we add these lengths together:
Perimeter = 3 + 1 + 18 + 3 + 3 + 18 = 46 meters
Therefore, the perimeter of the shape is 46 meters. This can be written as a whole number, since there are no fractions involved.
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Writing Polynomial Functions
Write the equation of the polynomial function given the following zeros.
x = 5, -2, -1
Answer:
Step-by-step explanation:
If the zero occur when x={5, -2, -1} then the equation must be
(x-5)(x+2)(x+1) if expansion is desired
(x^2-3x-10)(x+1)
x^3+x^2-3x^2-3x-10x-10
x^3-2x^2-13x-10
8(3n+4p) equivalent expression
Answer:
24n + 32p
Step-by-step explanation:
We can simply distribute the 8 to each term in the parenthesis:
8(3n) = 24n
8(4p) = 32p
24n + 32p
The discriminant if a quadratic equation is negative. One solution is 4 + 7i. What is the other solution? *
7 - 4i
4 - 7i
- 4 + 7i
7 + 4i
==========================================================
Explanation:
When you have a quadratic in the form ax^2 + bx + c = 0, where a,b,c are real numbers, then a negative discriminant leads to having a pair of complex roots. The roots come in conjugate pairs meaning that p+qi is one root while p-qi is the other root. The p,q are real numbers.
In the case of 4+7i being one root, we have p = 4 and q = 7, since it matches with p+qi. The other root must be 4-7i since it matches with p-qi.
In short, we flip the plus to a minus when going from 4+7i to 4-7i. All of this applies when we have a,b,c as real numbers.
If we allowed a,b,c to be complex numbers, then the roots may not necessarily come in conjugate pairs.
Freda bought a sandwich for $4. 00 and a drink for94$. Her grandson ordered a meal for$6. 35. What was the total price of all three items when 8% sales tax was added?Explain how touse estimation to check whether your answer is reasonable
The answer is $112.70 The Question is a simple Sales tax rate calculating problem.
How do you solve sales tax problems?Multiplying the purchase price by the sales tax rate will provide the sales tax. Don't forget to round the sales tax rate from percent to decimal. The price of the purchase is increased after the sales tax has been calculated. The entire cost is what the client pays as a result.
Sales tax rate = Sales tax percent / 100.
Sales tax = List price x Sales tax rate.
Given,
Rate of sandwich is = $4. 00
Rate of drink is = 94$
The rate of a meal that Her grandson ordered is =$6. 35.
What was the total price of all three items when 8% sales tax was added?
Total price of all three items without tax = 4 + 94 + 6.35
= $104.35
Total price of all three items with tax = (100% + tax) * Price
= (100% + 8%) * 104.35 = 108% * 104.35
= 1.08 * 104.35 = 112.698
≅ $112.70
The estimation to check if the result is reasonable by putting the answer in the original equation.
E.g. x + 4 = 10; x = 10 - 4
We get that x = 6
Plug in x = 6 in x + 4 = 10.
6 + 4 = 10.
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Which of the following below is a solution to y=4x-3
(2,5)
(5,5)
(4,5)
(3,5)
\( \fbox{(2,5)}\)
Step-by-step explanation:Hello, substitute all the given coordinates & see if RHS match with LHS
given equation,
y = 4x-3
First coordinate,
(x,y) = (2,5)
5= 4×2-3
5=5
Hence, first solution satisfies the given equation,
let's solve for rest other cordinates,
second coordinate,
(x,y) = (5,5)
5= 4×5-3
5 ≠ 17
does not satisfy,
third coordinate,
(x,y) = (4,5)
5= 4×4-3
5 ≠ 13
does not satisfy,
fourth coordinate,
(x,y) = (4,5)
5 = 4×3-3
5 ≠ 9
does not satisfy.
Hence the correct answer is (2,5)
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Determine whether the following statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. Because there are 3 feet in one yard, there are also 3 square feet in one square yard. Question content area bottom Part 1 Choose the correct answer below. A. The statement is true. B. The statement is false. Because there are 3 feet in one yard, there are 27 square feet in one square yard. C. The statement is false. Because there are 3 feet in one yard, there are 6 square feet in one square yard. D. The statement is false. Because there are 3 feet in one yard, there are 9 square feet in one square yard.
The correct option regarding the scale factor and the statement in this problem is given as follows:
D. The statement is false. Because there are 3 feet in one yard, there are 9 square feet in one square yard.
How to obtain the correct scale factor?The scale factor between the length dimensions of the yard are given as follows:
3 feet = 1 yard.
(as these length dimensions are given in yards).
Then for the square units, the correct scale factor is found applying the proportion as follows:
(3 feet)² = (1 yard)².
9 feet squared = 1 square yard.
Hence the statement given in this problem, that because there are 3 feet in one yard, there are also 3 square feet in one square yard, is false, and the correct option is given by option D.
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A motorcycle maker, says that it expects to build 318,000 motorcycles this year, up from 291,500 last year. Find the percent of increase in production.
The percent of increase is ____%.
Sarah Walker's long-distance phone bills plummeted to an average of $22.90 a month from last year's monthly average of $40.10. What was the percent of decrease?
The percent of decrease is ____%.
The percent of increase in motorcycle production is approximately 9.75%, and the percent of decrease in Sarah Walker's long-distance phone bills is approximately 42.07%.
To find the percent increase in motorcycle production, we use the formula:
Percent Increase = (New Value - Old Value)/Old Value x 100%
Plugging in the given values, we get:
Percent Increase = (318000 - 291500)/291500 x 100% = 9.75%
Therefore, the percent of increase in motorcycle production is approximately 9.75%.
To find the percent decrease in Sarah Walker's phone bills, we use the formula:
Percent Decrease = (Old Value - New Value)/Old Value x 100%
Plugging in the given values, we get:
Percent Decrease = (40.10 - 22.90)/40.10 x 100% = 42.07%
Therefore, the percent of decrease in Sarah Walker's long-distance phone bills is approximately 42.07%.
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what is the greatest of 10 and 15
Answer:
15 is greater than 10
Step-by-step explanation:
Good luck with Maths and other subjects!
Please mark Brainliest..:-)
The greatest common factor of 15 and 10 is 5
Sofia made 5% of her free throws over the season. If she shot 160 free throws, how many did she make?
Answer:
8
Step-by-step explanation:
An easy way to solve this problem is by first finding 10%. To find 10% of any number simply move the decimal one place to the left. So 160.0 becomes 16.00. Then, because 5% is half of 10% to find the answer divide 16 by 2. Therefore, Sofia made 8 of her 160 free throws.
Mary's living room is rectangular and measures 27 feet by 36 feet. Beginning in one corner, Mary walks the length of her living room and then turns and walks the width. Finally, Mary walks back to the corner she started in. How far has she walked?
Mary's living room is rectangular and measures 27 feet by 36 feet. Mary has walked 90 feet in total.
Mary strides the 27-foot length of the main room. She then does a 180-degree turn and walks the 36-foot breadth. After another 27 feet, she finally makes her way back to the corner where she began.
She has therefore traveled the following distance:
90 feet is equal to 27 feet in length, 36 feet in width, and another 27 feet for the return, i.e,
27 feet (length) + 36 feet (width) + 27 feet (return length) = 90 feet
Mary has now covered a total distance of 90 feet.
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PLEASE HELP Word problem involving average rate of change
Answer:
(a): 26.1
(b): 27.9
Please see below for the steps.
Step-by-step explanation:
(a):
Use points (0,0) and (3, 78.3)
Use slope formula. The slope formula is also used to find average rate of change (just so you know).
y2-y1/x2-x1
78.3-0/3-0=78.3/3=26.1
Answer for (a) is 26.1
(b):
Use points (4, 147.6) and (9, 287.1)
Use slope formula.
y2-y1/x2-x1
287.1-147.6/9-4=139.5/5=27.9
The answer for (b) is 27.9
Hope this helps!
Please mark as brainliest if correct!
Have a great day!
17. Who am I? ___ Collection of one or more different types of variables, including arrays and pointers, that have been grouped under a single name for each manipulation.
a) template
b) array
c) structure
d) local variables
You are c) a structure. A structure is a collection of one or more different types of variables, including arrays and pointers, that have been grouped under a single name for each manipulation.
A structure is a user-defined data type that allows you to group together related data. For example, you could create a structure to store the name, age, and address of a person. The structure would have three variables, each of a different type: a string variable for the name, an integer variable for the age, and a string variable for the address.
The advantage of using a structure is that it allows you to treat the related data as a single unit. This makes it easier to manipulate the data and to pass the data to functions.
The other answer choices are incorrect. A template is a blueprint for creating a generic class or function. An array is a collection of elements of the same type. Local variables are variables that are declared within a function and that are only accessible within the function.
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Question 13
In sexual reproduction, 2 parents each form haploid cells which join to form offspring.
True
O False
20% of Ms. Martin's class did not complete their homework. If there are 30 students in her class, how many did not complete homework
Answer:
Step-by-step explanation:
20% of 30 is 6
Words: 6 Students in Ms. Martin's class did not do their homework.
hope this helps :)
Please answer this question now in two minutes
Answer:
\(y=\frac{3}{2}x+4\)
Step-by-step explanation:
So the line C equation is \(y=\frac{3}{2}x+2\) and line D is parallel to it and it passes through the point (4,10) and we need to ding the equation for line D.
So first we have a graph with line C listed and (4,10).
And we can keep listing more equations till we find the right one which is \(y=\frac{3}{2}x+4\).
So I got this by knowing that in parrelel lines the slope is the same but the y intercept changes which is why it was fast to find the answer.
Answer:
y = 3/2x +4
Step-by-step explanation:
The given line is in slope-intercept form.
y = mx + b
Comparing this form to your equation, we see ...
m = 3/2 . . . . . . the slope of the given line
__
When you know the slope and a point on the line, it is convenient to use a point-slope form of the equation of a line to start with.
y = m(x -h) +k . . . . line with slope m through point (h, k)
The slope of your parallel line is the same as the slope of the given line. So the required parameters are ...
m = 3/2, (h, k) = (4, 10)
Putting those into the form, we have ...
y = (3/2)(x -4) +10
Simplifying puts this in the required slope-intercept form.
y = 3/2x +4
(02.01)
Solve 4(x + 1) = 4x + 4. (1 point)
Select one:
a. No solution
b. 0
c. All real numbers
d. 1
Answer:
the answer is Any Real Number
because 4(x + 1) = 4x + 4 for all value of x
Step-by-step explanation: