Answer:24 seconds
Step-by-step explanation:
Since A(t) equals the total number of pixels in the image, then to figure out when it will be zero you just need to set A(t) equal to zero. This gives you the equation
\(0=(256-8t)(192-8t)\)
Since this equation equals zero, we know either 256-8t must equal 0 or 192-8t must since they are multiplied.
We can split this into two equations
\(256-8t=0\)
\(8t=256\\t=32\)
and
\(192-8t=0\\8t=192\\t=24\)
So, after 24 and 32 seconds both the width and height equal zero. Only the height or the width need to equal zero for the total area to equal zero (A=w*h), so we go with the lesser time, 24 seconds.
We discussed two algorithms for computing the transitive closure of a given relation. Use the pseudocode given below to complete the questions. 1. In lecture, I mentioned that Warshall's algorithm is more efficient, when compared to Algorithm 0.1, at computing the transitive closure. Verify this claim by doing the following. (a) (15 points) Write python scripts that will perform both algorithms. (b) (10 points) Once your scripts are working correctly, run a sequence of tests using random zero-one matrices with n=10,20,30,…,100 where you record completion time and take a 10 run average for each. Plot your results on an appropriate graph. (c) (5 points) What conclusions can you claim based on your results from part (b)? 2. (20 points) Both algorithms given above can be adapted to find the reflexive closure of the transitive closure for a given relation. Adapt your scripts from 1.(a) so that you have the option to find either the transitive closure, or the reflexive transitive closure, for a given relation. Test your scripts, for each of the four cases, on a random 20×20 zero-one matrix and return the matrices resulting from these tests.
The results obtained from part (b) can be used to make the following conclusions: Warshall's Algorithm takes less time than Algorithm 0.1 for all values of n between 10 and 100.
The pseudocode for both Algorithm 0.1 and War shall's Algorithm is as follows: Algorithm 0.1:Warshall's Algorithm:
Here is the sequence of steps to calculate and record completion time as well as the 10-run average: Define the range of values n from 10 to 100, and then for each value of n, randomly generate a zero-one matrix M of size nxn (this is an adjacency matrix for a directed graph)
Run Algorithm 0.1 on M and record the time it takes to complete. Repeat this process for ten random matrices of size nxn, then calculate the average of the completion times of the ten runs. Run War shall's Algorithm on M and record the time it takes to complete. Repeat this process for ten random matrices of size nxn, then calculate the average of the completion times of the ten runs. Repeat this for all values of n from 10 to 100. Plot the results on an appropriate graph.
Warshall's Algorithm is more efficient than Algorithm 0.1 in computing the transitive closure of a given relation.
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Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 4 liters of natural oil for every 5 liters of synthetic oil. In order to make 855 liters
of Petrolyn oil, how many liters of natural oil are needed?
380 liters of natural oil is needed
How to calculate the amount of natural oil that is needed?
The ratio of natural oil to synthetic oil is 4:5
Total number of petrolyn oil is 855
4x + 5x= 855
9x= 855
x= 855/9
x= 95
The number of natural oil is 4x
= 4(95)
= 380
Hence the number of liters of natural oil that is needed is 380
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Find a counterexample to show that the given conjecture is false.
If n is a real number, then n³>n.
Let \(n=0\). Then \(0^3 = 0\) but 0 > 0 is a false statement.
which situation represent a descrete relation?A -a faucet fills the kitchen sink at 1 gallon per minute.B -a car drives for 6 hours and average 70 m.p.h.C- Jacqueline sells chocolate bars for $1.50.D- a swimming pool drains 3 gallons of water each minute.
A discrete function is a function with distinct and separate values. This means that the values of the functions are not connected with each other. For example, a discrete function can equal 1 or 2 but not 1.5.
Let's analize the options:
• Option A: This is continuos, the faucet can fills with 1 gallon, 1.1 gallon, and so. Also any previous value is connected with the next.
,• Option B: As in option B, the car drives for a continuos time.
,• Option C: This is a discrete relation, because Jacqueline could not sells a half of a chocolate bar, she sells discrete values of chocolate bars 1, 2, 3, ....
,• Option D: This is the same as option A.
Do you think it would be difficult to convert between the English Customary System and the Metric System? For example, if I wanted to know how many grams were in a pound, what would I have to do?
Answer:
1 pound is 453.6 grams appox
Step-by-step explanation:
to calculate how many grams is 2 pounds, u can do 2x453.6 which would be 907.2
for all others i have an attached file :)
Help me with this please!!!!
Which of the following best describes a directed line segment?
1, A directed line segment is a line segment with a specified direction.
2, A directed line segment is a line segment with a specified direction and one endpoint labeled as the initial point.
3, A directed line segment is a line segment.
4, A directed line segment is a line segment with one endpoint labeled as the initial point.
Answer:
2,A because it's a line with a specified direction
Answer:
A is the correct answer
Step-by-step explanation:
Thats your answer
Solve below functions word problem ASAP
The revenue function when the assumed values and parameters are used is F(x) = (60 + 8x)(250 - 30x)
The assumed valuesTicket price = $60 per ticketPeople = 250Increase in price = 8Decrease in people = 30The revenue functionLet the number of people be x, and the revenue function be F(x).
Using the assumed values, the revenue function is:
F(x) = (60 + 8x)(250 - 30x)
The maximum fundsWe have:
F(x) = (60 + 8x)(250 - 30x)
Expand
F(x) = 15000 - 1800x + 2000x - 240x²
Differentiate the function
F'(x) = -1800 + 2000 - 480x
Evaluate
F'(x) = 200 - 480x
Set to 0
200 - 480x = 0
This gives
480x = 200
Divide both sides by 480
x = 0.42
Substitute x = 0.42 in F(x)
F(x) = (60 + 8 * 0.42)(300 - 30* 0.42)
Evaluate
F(x) = 18210
Hence, the maximum revenue is $18210, at a rate of $0.42 per person.
Would they raise $5000?We start by setting F(x) to 5000.
So, we have:
15000 - 1800x + 2000x - 240x² = 5000
Evaluate the like terms
10000 + 200x - 240x² = 0
Using a graphing tool, we have:
x = 6.89
Hence, they would reach their goal at a rate of $6.89 per ticket.
The cost function
We have:
People = x
Cost per person = 20
So, the cost function is:
C(x) = 20x
The profit functionProfit is calculated using:
P(x) = F(x) - C(x)
So, we have:
P(x) = 15000 - 1800x + 2000x - 240x² - 20x
Evaluate
P(x) = 15000 + 180x - 240x²
The break even priceThis is the point where P(x) = 0.
So, we have:
15000 + 180x - 240x² = 0
Using a graphing tool, we have:
x = 8.29
Hence, the break even price is $8.29
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There are 3 feet in one yard, and 36 inches in one yard. How many yards are in 612 inches?
There are type your answer...
yards in 612 inches.
8-6 practice solving x2+bx+c=0 answers
To solve the quadratic equation \(x^{2}\) + bx + c = 0, one can use the quadratic formula, which states that the solutions are given by x = (-b ± √(\(b^2\) - 4ac))/(2a).
The quadratic equation \(x^{2}\) + bx + c = 0 represents a parabola in the Cartesian coordinate system. To find the solutions, one can use the quadratic formula, which is derived from completing the square. The formula states that the solutions, denoted by x, can be found by substituting the coefficients a, b, and c into the formula x = (-b ± √(\(b^2\) - 4ac))/(2a).
The discriminant, \(b^2\) - 4ac, plays a crucial role in determining the nature of the solutions. If the discriminant is positive, the equation has two distinct real solutions. If the discriminant is zero, the equation has one real solution, which is called a double root. If the discriminant is negative, the equation has two complex solutions, which are conjugates of each other.
By plugging in the values of a, b, and c into the quadratic formula and simplifying, one can obtain the solutions for the given quadratic equation. The ± symbol in the formula indicates that there will be two solutions, one with a positive sign and the other with a negative sign, corresponding to the two possible roots of the equation.
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which is a proportional relationship
Answer:
Proportional relationships are relationships between two variables where their ratios are equivalent.
So if one of your answers have equivalent ratios, that is your answer
Andrew can paint the neighbor's house 3 times as fast as Bailey. The year Andrew and Bailey worked together, it took them 2 days. How long would it take each to paint the house?
Andrew can paint the neighbors house 3 times as fast as Bailey.
The year Andrew and Bailey worked together, it took them 7 days.
How long would it take each to paint the house?
:
Let t = time required by A to do it alone
then
3t = time required by B to do it alone
:
Let the completed job = 1
:
7%2Ft + 7%2F%283t%29 = 1
Multiply equation by 3t to get rid of the denominators, results:
21 + 7 = 3t
28 = 3t
t = 28%2F3
t = 91%2F3 days, Andrew alone
then
3*91%2F3 = 28 days, Bailey alone
:
:
Check solution on calc using decimals
(7/9.33) + (7/28) = 1.00
Find the slope given the following two points:
(5,-2) and (-3, -2)
Express 4 + ln 2 - ln 4 as a single natural logarithm. a. ln 2 b. ln 4 c. ln 64
The single natural logarithm expression is ln(2). Therefore, correct answer is (a)
Logarithmic Equations:The expression in the form \(e^a=b\) can also be written as In b = a which is called as logarithmic expression.
Properties of Logarithms:
1. In (mn) = In m + In n
2. In \(a^m =\) m In a
3. In \(e^a\) = a.
How to express as a single natural logarithm?The natural logarithm expression is:
4 + ln 2 - ln 4
Apply the product and quotient rule of natural logarithm:
4 + ln 2 - ln 4 = In (4 × 2/4)
Evaluate the quotient:
4 + ln 2 - ln 4 = In (2)
Hence, the single natural logarithm expression is ln(2).
The correct option is (a)
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Answer:
B: ln 4.
Step-by-step explanation:
Write the equation in slope intercept form
2x+y=6
Answer: the slope intercept form of 2x+y=6 is y=-2+6
Step-by-step explanation:
2x+y=6 (subtract 2x from both sides)
-2x -2x (the -2x and the 2x cancel leaving...)
y=-2x+6 →( y equals negative two x plus six)
I’m not sure I need help
Answer:
D) \(1 < x\leq 4\)
Step-by-step explanation:
1 is not included, but 4 is included, so we can say \(1 < x\leq 4\)
289.08 divided by 4 .......?
Answer:
72.27
Step-by-step explanation:
Answer:
72.27
Step-by-step explanation:
that's what I got on the calculator.
Find x if AC = x + 24, AB = 2x + 28,
and BC = 6.
The value of x from the given expression is -10
Addition postulateGiven the following expression
AC = x + 24,
AB = 2x + 28,
and BC = 6.
Using the addition property, we will have:
AC = AB + BC
Substitute the expression to have:
x+24 = 2x + 28 + 6
x-2x = 34 - 24
-x = 10
x = -10
Hence the value of x from the given expression is -10
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Answer:
X=-10
Step-by-step explanation:
In this case, "X+24" is the sum of "2x+28" and "6"
The correct equation would be:
2x+34=x+24
Now, subtract X from both sides and add 34 to both sides
Now:
x=-10
Hence, -10 is the answer
The coordinates of one endpoint of a line segment are (4, - 12). The length of the segment is 5 units. Determine four coordinate pairs that could serve as the other endpoint of the given line segment. Enter all four coorblinate pairs in the box using a comma to separate each pair. For example:
Solution:
Starting point = (4, -12)
Length = units
Along the y axis, the endpoints could be
(4, -7) and (4, -17)
Along the x- axis, the endpoints could be
(9, -12) and (-1, -12).
The answer is (4, -7), (4, -17), (9, -12), (-1, -12).
PART 1 Please help me 10 points i just joined today ;)
PART 2 is on other question
Answer:
B=30,000
Y=The Plane's altitude
M= -2,000
X= Minutes
Equation: y=-2,000x+30,000
Slope= ?
Y-intercept= the point where you start at
what is the altitude after 10 minutes?=10,000
How Long does it take to get to 0 altitudes?=15 (Minutes)
Step-by-step explanation:
What are the choices for slope
The economy of Rayton can be described by the following statistics:
Current real GDP = $10,000
Full employment real GDP = $12,000
Tax revenue = $3000
Government transfer payments = $1000
Government spending = $3000
a) In what stage of the business cycle is the Rayton economy? Explain.
b) What is the current budget balance in Rayton? Show your work.
c) Senator Fullington, an influential politician in Rayton, has argued that the budget must be
balanced. How could this be accomplished? How would balancing the budget affect real GDP in
Rayton?
Based on the current real and the full employment real GDP, Rayton's economy is at a Recession stage.
The current budget balance in Rayton is -$1,000. The budget can be balanced by reducing government spending or increasing taxes. Both of these would decrease real GDP.
What does the economic data on GDP show?The fact that the current real GDP is less than the full employment GDP shows that the nation is at a recession stage where it is underperforming.
What is the current budget balance?This can be found as:
= Government revenue(taxes) - government spending
= 3,000 - 1,000 - 3,000
= -$4,000
In order to make a balanced budget where government revenue will equal government spending, the government either needs to reduce spending or increase revenue ( taxes ).
Increasing taxes or reducing spending, will lead to less money available for spending in the economy which will lead to a decrease in real GDP.
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Suppose that the function g is defined, for all real numbers, as follows.
1x²-5 ifx#-2
g(x)=-
4
if x = -2
Find g (-5), g (-2), and g (5).
8 (-5) = 0
8 (-2) = 0
8 (5) = 0
8
X
Ś
The value of g(-5) is 7.5, g(-2) is 4, and g(5) is 7.5 if the value of function g(x) = 1/2x²-5 if x≠-2 and g(x) = 4 if x = -2.
A function is a rule that associates each element in a set (called the domain) with a unique element in another set (called the range). A function takes an input from the domain and produces an output in the range.
To find the value of g(-5), substitute the value in given function
g(-5) = 1/2×(-5)² - 5
= 1/2×25 - 5
= 12.5 - 5 = 7.5
The value of g(-2) is 4 as it is defined in the question only.
To find the value of g(5), substitute the value in given function
g(5) = 1/2×(5)² - 5
= 1/2×25 - 5
= 12.5 - 5 = 7.5
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State and classify the restrictions on the variable as either removable or nonremovable and explain how you got that answer.
Please help, I have no idea how to do this and I'll give 70 points :)
We have 3 non-removable restrictions at x = -4, x = 1, and x = -1.
How to see if it is removable or non-removable?
Here we have the expression:
\(\frac{x - 3}{x + 4} /\frac{x^2 - 1}{x}\)
This can be rewritten as:
\(\frac{x-3}{x + 4} *\frac{x}{x^2 - 1}\)
We can rewrite the denominator of the second fraction as:
\(x^2 - 1 = (x - 1)*(x + 1)\)
Then we rewrite the expression as:
\(\frac{x-3}{x + 4} *\frac{x}{(x- 1)*(x + 1)} = \frac{x*(x - 3)}{(x + 4)*(x + 1)*(x - 1)}\)
So, none of the factors in the denominator is also in the numerator meaning that none of the restrictions is removable.
Then we have 3 non-removable restrictions at:
x = -4, x = -1, x = 1.
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Joe is selling hot chocolate for $0.25 per cup. It costs $12 for a case of cocoa mix. Each paper coffee cup costs $0.10. How many cups of hot chocolate does he need to break even?
Answer: He needs 80 cups.
Step-by-step explanation:$12/$.15=80 cups
Select the statement below that is true about correlations.A. Correlations can only be negativeB. Correlations are a measure of how much one variable changes as the other variable changesC. Correlations are a measure used to determine the degree to which two variables are related.D. Correlations are a measure of causation between two variablesE. A negative correlation implies no relationship between variablesF. Correlations can only be positive
The statements that are True about the Correlations is , "Correlations are a measure used to determine the degree to which two variables are related" , the correct option is (c) .
In the question,
few statements about Correlation is given ,
we need to find the statement that is True .
we know that , Correlation is the term that is used to measure the degree of relationship between two variable ,
the correlation can be negative , positive or 0 ,
and the negative correlation implies that if one variable increases then other variable decreases and vice a versa .
So , from the above information about Correlation ,
we conclude that , the True statement is "Correlations are a measure used to determine the degree to which two variables are related. "
Therefore , the statement in option (c) is True .
The given question is incomplete , the complete question is
Select the statement below that is true about correlations.
(a) Correlations can only be negative
(b) Correlations are a measure of how much one variable changes as the other variable changes
(c) Correlations are a measure used to determine the degree to which two variables are related.
(d) Correlations are a measure of causation between two variables
(e) A negative correlation implies no relationship between variables
(f) Correlations can only be positive .
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Mae Ling earns a weekly salary of $395 plus a 5.0% commission on sales at a gift shop. How much would she make in a work week if she sold $4,600 worth of merchandise?
Answer:
Calculate 5% of what she sold. Then add it to her weekly salary
5% =0.05
Commission 4600×0.05=$230
Total pay is 380+230 = $610
assume that a null hypothesis is true. which one of the following statements is true? a. a study with a larger sample is more likely than a smaller study to get the result that p < 0.05. b. a study with a larger sample is less likely than a smaller study to get the result that p < 0.05. c. a study with a larger sample is equally likely compared to a smaller study to get the result that p < 0.05
A study with a larger sample is more likely than a smaller study to get the result that p < 0.05. If we assume the null hypothesis is true, the correct statement is: a.
When the null hypothesis is true, any observed effect is due to random chance.
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Hayden likes building radio controlled sailboats with her father. One of the sails shaped like a tight triangle has side lengths measuring 6 inches 8 inches and 10 inches. To log her activity hayden creates and collects drawings of all the boats she and her father built together. Using the scale factor of 1/4 create a scale drawing of the sail
Answer:
the scaled sail has lengths 1.5 inches, 2 inches, and 2.5 inches. the diagram is attached.
Step-by-step explanation:
a scale factor of 1/4 means that the lengths of each side of the sail will be reduced by 0ne-forth (0.6) its original length. Therefore the lengths of the scale drawing before and after scaling are:
6 inches = 6 × 1/4 = 6 × 0.25 = 1.5 inches
8 inches = 7 × 0.25 = 2 inches
10 inches = 10 × 0.25 = 2.5 inches.
Therefore the scaled sail has lengths 1.5 inches, 2 inches, and 2.5 inches as shown in the diagram attached.
The function
f(x)=4x^3 −17x^2 −39x−18 has at least one rational root. Use the rational root theorem to find that root, then proceed to find all complex roots. (Note: roots may be integer, rational, irrational, and/or complex.)
The rational root of the function is x = -1/2, and the complex roots are x = 21/4 and x = 1.
How did we get the value?To find the rational root of the function f(x) = 4x³ - 17x² - 39x - 18, we can apply the Rational Root Theorem. According to the theorem, any rational root of the function must be of the form p/q, where p is a factor of the constant term (in this case, -18) and q is a factor of the leading coefficient (in this case, 4).
Let's list the factors of -18: ±1, ±2, ±3, ±6, ±9, ±18.
And now the factors of 4: ±1, ±2, ±4.
Possible rational roots are formed by dividing a factor of the constant term by a factor of the leading coefficient. So the possible rational roots are:
±1/1, ±1/2, ±1/4, ±2/1, ±2/2, ±2/4, ±3/1, ±3/2, ±3/4, ±6/1, ±6/2, ±6/4, ±9/1, ±9/2, ±9/4, ±18/1, ±18/2, ±18/4.
Now, test each of these possible roots by substituting them into the function f(x) and see if any of them result in f(x) = 0.
By evaluating the function for each of these possible roots, the rational root is x = -1/2.
Now let's proceed to find the complex roots of the function. To do this, use polynomial division or synthetic division to divide f(x) by (x - (-1/2)).
Performing the synthetic division, we have:
4 | 4 -17 -39 -18
| -8 60 -105
| ___________________
| 4 -25 21 -123
The result of the synthetic division is 4x² - 25x + 21 with a remainder of -123. Now we have a quadratic equation. To solve it, we can use the quadratic formula:
x = (-b ± √(b² - 4ac)) / (2a)
For our quadratic equation 4x² - 25x + 21, the coefficients are:
a = 4
b = -25
c = 21
Applying the quadratic formula, we get:
x = (-(-25) ± √((-25)² - 4 x 4 x 21)) / (2 x 4)
= (25 ± √(625 - 336)) / 8
= (25 ± √289) / 8
= (25 ± 17) / 8
So the two complex roots are:
x = (25 + 17) / 8 = 42 / 8 = 21 / 4
x = (25 - 17) / 8 = 8 / 8 = 1
Therefore, the rational root of the function is x = -1/2, and the complex roots are x = 21/4 and x = 1.
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L-18
W-21
H-16
PLEASE HELP!
grade-6
Using the given information, the volume of the rectangular prism is 6,048 cubic units.
What is a rectangular prism?A rectangular prism is a three-dimensional geometric shape that has six rectangular faces, each with an identical size and form.
To compute the volume of a rectangular prism, multiply the length (L), width (W), and height (H).
In this case, we are given:
L = 18
W = 21
H = 16
Volume = L × W × H
= 18 × 21 × 16
= 6,048 cubic units
Therefore, the volume of the rectangular prism is 6,048 cubic units.
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