Answer A) is correct because it states that the slope is the same which is -3 and has the same y-intercept (Initial Value) which is 4.5 for both.
Step-by-step explanation:
Slope is -3 for Item 1 and Item 2
Y-Intercept is 4.5 for Item 1 and Item 2
f(x) = (5x-3) forx > 2
Let f be the function defined above. Which of the following statements is true?
a. f is neither continuous nor differentiable at x=2.
b. f is continuous but not differentiable at x=2.
c. f is differentiable but not continuous at x=2.
d. f is both continuous and differentiable at x=2.
The correct option is: b. f is continuous but not differentiable at x=2.
f(x) = (5x-3) for x > 2There is only one condition for the function to be continuous and differentiable at a point ‘c’ that is f(x) is continuous at x = c and limit of f(x) at x = c exists and equal to f’(c). Now, if we apply this condition in our given function we have;For x > 2; f(x) = (5x-3)Therefore, f(2) does not exist, therefore, f is not continuous at x=2. Hence, option A is incorrectNow we need to find the derivative of the function at x=2;f(x) = 5x - 3dy/dx = 5The derivative of the function exists and is equal to 5. Therefore the limit of the function at x=2 does not exist, hence the function is not differentiable at x=2.Therefore, the correct option is: b. f is continuous but not differentiable at x=2.
The main point is the limit of the function. For the function to be differentiable at a point, the limit of the function should exist and be equal to the derivative at that point.Let's check the continuity of the function at x=2.For x > 2; f(x) = (5x-3)For x=2, f(x) does not exist as x is defined only for x>2. Therefore, the function is not continuous at x=2.Now we will check the differentiability of the function at x=2.f(x) = 5x - 3dy/dx = 5For x=2, the limit of the function does not exist and it is not equal to the derivative at that point. Hence, the function is not differentiable at x=2.So, the correct option is b. f is continuous but not differentiable at x=2.
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b) Without a calculator, evaluate (0.1)² = (0.1)4
Answer:
false
Step-by-step explanation:
The left side equals 0.01
The right side equals 0.4
The two sides are not equal. This is a false equation.
Answer:0.01=0.0001
Step-by-step explanation:
we were told the results are based on a random sample of ann arbor teens. is the following statement about the remaining assumption correct or not correct?we need to have a simple size n that is large enough, namely that the sample size n is at least 25.O CorrectO Incorrect
Correct. The assumption that the sample size should be at least 25 is correct. This is because, for a sample to be representative of the population, it should have enough observations to provide a reasonable estimate of the population parameters.
A sample size of at least 25 is generally considered the minimum requirement for statistical analysis. The statement about the remaining assumption is correct. In order to make valid inferences from a random sample, it is important to have a large enough sample size (n). A common rule of thumb is that the sample size should be at least 25. This helps to ensure that the sample is representative of the population and increases the accuracy of the results.
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1. Express 3 centimetres as a percentage of 6 metres.
Answer:
35 cm.
Step-by-step explanation:
Let x% of 2 metres is 35 cm.
Then
100
200x
=35 [Since 2 m = 200 cm]
or, x = 17.5
So 17.5% of 2 metres is 35 cm.
The 3 centimeters as a percentage of 6 meters is 0.5 % .
What is percentage?Percentage, which may also be referred to as percent, is a fraction of a number out of 100%. Percentage means "per 100" and denotes a piece of a total amount. For example, 45% represents 45 out of 100, or 45% of the total amount.
According to the question
3 centimeters as a percentage of 6 meters.
1 meter = 100 centimeters
6 meter = 600 centimeters
Now,
Percentage of 3 centimeters over 600 centimeters
Percentage = \(\frac{3}{600} * 100\)
= 0.5 %
Hence, The 3 centimeters as a percentage of 6 meters is 0.5 % .
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What is 4(5x^{2} )+16=400
Step-by-step explanation:
4(5x²) + 16 = 400
5x² + 4 = 100
5x² = 96
x² = 19.5
x = ±sqrt(19.5) = ±4.415880433...
a folder and a paper clip cost $1.10 in total. the folder costs $1.00 more than the clip. how much does the paper clip cost?
The paper clip costs $0.05 and the folder Costs $1.00 more, which is $1.05. Together, they add up to the total of $1.10.
Let's solve this problem step by step:
Let's assume the cost of the paper clip is x dollars.
According to the information given, the folder costs $1.00 more than the paper clip, so the cost of the folder would be (x + $1.00).
The total cost of the folder and the paper clip is $1.10, so we can write the equation:
x + (x + $1.00) = $1.10
Combining like terms, we have:
2x + $1.00 = $1.10
Subtracting $1.00 from both sides of the equation, we get:
2x = $0.10
Dividing both sides by 2, we find the value of x:
x = $0.10 / 2
x = $0.05
Therefore, the paper clip costs $0.05.
In summary, the paper clip costs $0.05 and the folder costs $1.00 more, which is $1.05. Together, they add up to the total of $1.10.
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J.D. opened a savings account with $425. After 4 years, the total interest he earned was $10.20. What was the interest rate?
Answer: 1.2%
Step-by-step explanation:
List the ordered pairs for each point on the graph.
Answer:
A = (1,3)
B = (5,4)
C = (5,8)
D = (1,7)
Step-by-step explanation:
Answer:
A is (1,3) B is (5,4) C is (5,8) D is (1,7)
Hope this helps
How much will it cost someone to finish these 37 problems showing work for every problem. The answers are there but I need to show work. On a lined paper.
answer:
you mean money? then i would take like 10-15 dollars, cause that is a LOT of work.
QUESTION 30 Given the following probability distributions, what are the expected returns for the market and for Security J? State Pr i ᵣM ᵣJ
1 0.3 -10% 40% 2 0.4 10 -20 3 0.3 30 30
Expected return for the marketE(RM) = ∑ Pr(RM) = 0.3(-10%) + 0.4(10%) + 0.3(30%)= -3% + 4% + 9%= 10%Therefore, the expected return for the market is 10%Expected return for Security JE(RJ) = ∑ Pr(RJ) = 0.3(40%) + 0.4(-20%) + 0.3(30%)= 12% - 8% + 9%= 13%Therefore, the expected return for Security J is 13%..
The above calculation represents the probability distributions of returns for the market and Security J. From the above calculation, it can be observed that the expected return for the market is 10%.
The expected return is a prediction that helps investors to get an idea about the possible returns of an investment.
The expected return is calculated by multiplying each possible outcome by its corresponding probability and then adding all the products.
By calculating the expected return for the market, investors can predict the market performance and make investment decisions accordingly. Similarly, the expected return for Security J is 13%, which implies that Security J has a higher expected return than the market.
By analyzing the expected return, investors can decide which investment would be more profitable for them.
In conclusion, the expected return for the market and Security J can be calculated using probability distribution. The calculation of the expected return is beneficial for investors to understand the market performance and make investment decisions accordingly.
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Mr. Carandang sold a total of 1,790 prints of one of his drawings. Out of all 1,273 unframed prints that he sold, 152 were small and 544 were medium-sized. Out of all of the framed prints that he sold, 23 were small and 42 were extra large. Of the large prints that he sold, 188 were framed and 496 were unframed. Small Medium Large Extra Large Total Framed 23 264 188 42
There are 23 small prints, 264 medium prints ,188 large prints and 42 extra large prints which are being sold by Mr. Carandang.
Given that there is total sales of 1790 prints of one of the drawings by Mr, Caradang. Out of which 1273 unframed prints, 152 were small, 544 were medium. Out of the framed prints 23 were small,42 were extra large. Out of large prints 188 were framed, 496 were unframed.
We are required to find the number of small prints,medium prints, large .extra large in total and total framed print of the drawings.
Total framed print=Small print+Medium print+Large print+Extra large print
=23+264+188+42
=517
Unframed print:
Small=152
Medium=544
Large=496
Extra large=81
Total unframed print=Small+Medium+large+extra large
=152+544+496+81
=1273.
Hence there are 23 small prints, 264 medium prints ,188 large prints and 42 extra large prints which are being sold by Mr. Carandang.
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Part A: Rhett made $250 washing cars with his mobile car wash company. He charges $70 per car and earned $50 in tips. Write an equation to represent this situation. (4 points)
Part B: Scarlett made a profit of $250.00 with her mobile car wash company. She charged $75.00 per car wash and received $35.00 in tips, but also had to pay $5.00 in cleaning supplies per car wash. Write an equation to represent this situation. (4 points)
Part C: Explain how the equations from Part A and Part B differ. (2 points)
Answer:
Part A 70x+50=250
Part B(75x + 35) = 250 - 5x
Step-by-step explanation:
Here to form an equation you must add all the money that she earned and subtract the money that she had to spend We dont know how many car washes she did, so we must represent it with a variable, or x.
Answer:
Step-by-step explanation:
Part A: Rhett washed 3 cars and earned $50 in tips. y=70x+50
Part B: $75 - $5 = $70 (this is the amount charged minus the amount needed to get the job done per car wash)
the +35 is the tips extra/ constant that will be added after the jobs are done.
x is the number of car washes done
y would be the profit received.
so y = 70x + 35 (profit = value of car wash * number of cars washed + tips)
what is the answer to this equation ... 3 + 2c + 5c + 2 ??
Answer:
solution:7c+5
i need help what's 8*3^2 i will mark brainiest if someone can answer it in 72-minute s
Answer:
72
Step-by-step explanation:
8 x 3² = 8 x 3 x 3
= 8 x 9
= 72
[P.S. If you meant (8 x 3)² the answer is:
(8 x 3)² = (24)²
= 24 x 24
= 576 ]
Four plus a number y is greater than 10
Answer:
y+4 _<_ 10
Step-by-step explanation:
Answer:
4+y>10
Step-by-step explanation:
Pls give Brainliest!
the edge where two colors meet and the visual line formed by a row of people waiting are examples of which type of line? question 8 options: implied lines vertical lines contour lines sketched lines
The edge where two colors meet and the visual line formed by a row of people waiting are examples of Implied lines.
Define vertical lines?
A vertical line is a line, parallel to y-axis and goes straight, up and down, in a coordinate plane. Whereas the horizontal line is parallel to x-axis and goes straight, left and right.A line which runs up and down a page or shape, from top to bottom. It will intersect a horizontal line at right angles.A vertical line is a line parallel to the Y-axis in a coordinate plane. The x-coordinate for any point along this line will be the same. The coordinate points of vertical lines are, for example, represented as (5, 0), (1, 0), (- 4, 0), and so on.A vertical line is the one that we draw from top to bottom. On the coordinate plane, the y-axis is referred to as the vertical axis and all the vertical lines are parallel to this axis.To learn more about vertical lines refers to:
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WILL MARK BRAINLIEST! PLEASE HELP<33
Answer:
200 feet
Step-by-step explanation:
I believe you can use cosine 60° (which is 0.5) and set it equal to x/400
.5 = x
400
x = 200
Uh, I need help with this question (10 points)
Answer:
2 cups
Step-by-step explanation:
This is for a Geometry-H class
Applying the linear angles theorem, the measures of the larger angles are: 130 degrees.
The measures of the smaller angles are 50 degrees
How to Apply the Linear Angles Theorem?Based on the linear angles theorem, we have the following equation which we will use to find the value of y:
3y + 11 + 10y = 180
Add like terms
13y + 11 = 180
Subtract 11 from both sides
13y + 11 - 11 = 180 - 11
13y = 169
13y/13 = 169/13
y = 13
Plug in the value of y
3y + 11 = 3(13) + 11 = 50 degrees
10y = 10(13) = 130 degrees.
Therefore, applying the linear angles theorem, the measures of the larger angles are: 130 degrees.
The measures of the smaller angles are 50 degrees.
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PLEASE HELPPPP
both questions
The Lateral Surface Area of Cylinder 460π and volume is 2300π unit³.
We know the Formula for LSA of cylinder is
= 2πrh
Here, radius of cylinder = 20/2 = 10
Height of cylinder= 23
So, the Lateral Surface Area of Cylinder
= 2πrh
= 2 x 3.14 x 10 x 23
= 1444.4 unit²
= 460π
Now, Volume of cylinder
= πr²h
= π x 100 x 23
= 2300π unit³
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bob rewrite the expression 6-(-8) as 6-(+8). Is he correct or incorrect? Explain how you know.
Answer:
Incorrect
Step-by-step explanation:
When you subtract a negative number it changes it to adding a positive number according to math rules.
6 - (-8) -> 6 + 8
Best of Luck!
Answer:
if Bob rewrite the expression 6-(-8) as 6-(+8) it will be incorrect.
Step-by-step explanation:
If Bob rewrite the expression, 6-(-8) as 6-(+8) he will be incorrect because if he right 6-(-8) as 6-(+8) it will be completely incorrect as if we open the bracket of 6-(-8) it becomes 6+8which is 14 but if we opens open the bracket of 6-(+8) which is -2 and hence simplify will be totally incorrect .Thus,bob should not rewrite the expressions, 6-(-8) as 6-(+8).
I hope this will help you.....please mark my answer as BRAINLIEST if you liked it....y=3x y=18 solve for x
Answer:
6=x
Step-by-step explanation:
y= 18; y= 3x
18=3x
18/3 = 3x/3
6=x
Hope this helps!
Given: Quadrilateral PQRS is isosceles trapezoid
If S=120, Q=?
30
60
120
Answer:
60
Step-by-step explanation:
60. answer degree 60120+60=180degreeThe measurement of the angle Q will be equal to 60°.
What is a isosceles trapezoid?An isosceles trapezoid is a convex quadrilateral with one pair of opposite sides bisected by a line of symmetry. It is a subset of the trapezoid. It can also be defined as a trapezoid with equal lengths for both legs and base angles.
Given that the angle S= 120. The measure of the angle Q will be calculated as:-
∠Q = ∠R = 120°
The pair of the two angles with the two parallel lines are supplementary.
∠R + ∠Q = 180
120 + ∠Q = 180
∠Q = 180 - 120 = 60
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help plz i need help
Hey there here is ur answer!
0.24 in percent = 24%
Well all u gotta do is multiply 0.24 or any other decimal number with 100 to represent it in percent.
HOPE IT MAKES UR DAY BRIGHTER!!
4. (3)1 point possible (graded, results hidden)If we continue to iteratively solve for and , what would and converge to
If we continue to iteratively solve for x and y, what would x and y converge to? To find the convergence of x and y, we need to consider the iterative process and observe the changes in their values over time.
Let's assume we have a system of equations:
x = f(x, y)
y = g(x, y)
To solve this system iteratively, we can start with initial values of x and y and substitute them into the equations to obtain new values for x and y. We repeat this process until the values of x and y stabilize, which indicates convergence.
Here are the steps to find the convergence:
Start with initial values for x and y.
Substitute these values into equations 1 and 2 to obtain new values for x and y.
Repeat step 2 for a large number of iterations.
Compare the values of x and y in each iteration.
If the values of x and y stabilize (do not change significantly), then they have converged.
The convergence of x and y will depend on the specific functions f(x, y) and g(x, y) in the equations. It is not possible to determine the convergence without knowing these functions.
In conclusion, to find the convergence of x and y when solving iteratively, we need to follow the steps mentioned above and consider the specific equations being used.
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The velocity v in feet per second of a freely falling object that has fallen h feet can represent by v=8h1/2find the distance that the object has fallen if the velocity is 96 feet per second
Answer
h = √ (96 / 8) = √12 ft
P=100 watts
Step-by-step explanation:
Haley’s work evaluating (Negative 2) Superscript 8 is shown below.
(Negative 2) Superscript 8 = (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) (negative 2) = negative 256
Which statement best describe Haley’s first error?
She used the wrong number as a repeated factor and should have evaluatedNegative 2 times 2 times 2 times 2 times 2 times 2 times 2 times 2.
She used the wrong number as a repeated factor and should have evaluated Negative (8 times 8).
She misinterpreted the exponential form and should have multiplied –2 and 8.
She made a sign error when multiplying and should have had 256 as a final answer.
Step-by-step explanation:
She made a sign error when multiplying and should have had 256 as a final answer.
Answer:
It is d
Step-by-step explanation:
Please mark brainliest
The height, h in feet, of a tree is a function of the time, t in years since it was planted. a) what is the input quantity? ___________________ output quantity? ________________ input variable? ________ output variable? ________ b) ordered pairs are represented as: ( ___ , ___ ) c) use function notation to illustrate the relationship between h and t. ________________ d) interpret h(20) = 60
Input quantity: Time t in years since it was planted
Output quantity: Height h in feet of the tree.
Input variable: time t
Output variable: height h.
Ordered pairs are represented as (t, h).
Use function notation to illustrate the relationship between h and t.
h = f(t) where f is a function of time t.
The notation h(20) = 60 means that when the tree is 20 years old, its height is 60 feet. It means that after 20 years of planting the tree, its height is 60 feet.
The input quantity is time, the output quantity is height, the input variable is t, and the output variable is h. The relationship between height and time can be expressed as a function h = f(t).
Finally, the function notation h(20) = 60 means that the tree's height is 60 feet after 20 years.
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Write in point-slope form the equation of a line that has a slope of -5 and passes through the point (-1, 3).
Answer:
y - 3 = - 5(x + 1)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Here m = - 5 and (a, b) = (- 1, 3 ), then
y - 3 = - 5(x - (- 1) ) , that is
y - 3 = - 5(x + 1)
Answer:
Step-by-step explanation:
point slope formula is: y-y1 = m(x-x1) ( memorize this formula there is also slope intercept)
now plug in your point and slope where m = slope and the number of the given point are (x1,y1)
y-3 = -5(x-(-1))
y-3 = -5(x+1)
An experimenter would like to construct a 99% confidence interval with a width at most 0. 5 for the average resistance of a segment of copper cable of a certain length. If the experimenter knows that the standard deviation of such resistances is 1. 55. How big a sample should the experimenter take from the population? what happens if the standard deviation and the width of the confidence interval are both doubled?.
A big sample that should the experimenter take from the population is 256 and if the standard deviation and the width of the confidence interval are both doubled then the sample is also 256.
In the given question,
The confidence level = 99%
Given width = 0.5
Standard deviation of resistance(\sigma)= 1.55
We have to find a big sample that should the experimenter take from the population and what happens if the standard deviation and the width of the confidence interval are both doubled.
The formula to find the a big sample that should the experimenter take from the population is
Margin of error(ME) \(=z_{\alpha /2}\frac{\sigma}{\sqrt{n}}\)
So n \(=(z_{\alpha /2}\frac{\sigma}{\text{ME}})^2\)
where n=sample size
We firstly find the value of ME and \(z_{\alpha /2}\).
Firstly finding the value of ME.
ME=Width/2
ME=0.5/2
ME=0.25
Now finding the value of \(z_{\alpha /2}\).
Te given interval is 99%=99/100=0.99
The value of \(\alpha\) =1−0.99
The value of \(\alpha\) =0.01
Then the value of \(\alpha /2\) = 0.01/2 = 0.005
From the standard table of z
\(z_{0.005}\) =2.58
Now putting in the value in formula of sample size.
n=\((2.58\times\frac{1.55}{0.25})^2\)
Simplifying
n=(3.999/0.25)^2
n=(15.996)^2
n=255.87
n≈256
Hence, the sample that the experimenter take from the population is 256.
Now we have to find the sample size if the standard deviation and the width of the confidence interval are both doubled.
The new values,
Standard deviation of resistance(\(\sigma\))= 2×1.55
Standard deviation of resistance(\(\sigma\))= 3.1
width = 2×0.5
width = 1
Now the value of ME.
ME=1/2
ME=0.5
The z value is remain same.
Now putting in the value in formula of sample size.
n=\((2.58\times\frac{3.1}{0.5})^2\)
Simplifying
n=(7.998/0.5\()^2\)
n=(15.996\()^2\)
n=255.87
n≈256
Hence, if the standard deviation and the width of the confidence interval are both doubled then the sample size is 256.
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