Answer:
0.66
Step-by-step explanation:
Help please I’ll give you Brainlyist!!
Answer:its probably A
Step-by-step explanation:
Good luck :)
Answer:
A option is correct answer
A flagpole is propped on the east side corner of the roof of a building. The angle of depression from the top of the flagpole (Angle B) to a point on a neighboring building is 54 degrees. The angle of depression from the bottom of the flagpole (Angle A) to that same point on the building is 41 degrees. The distance from the edge of the building with the flagpole to the point on the neighboring building is 1660 feet (x). What is the height of the flagpole to the nearest tenth
Answer:
The height of flag pole is 841.8 ft.
Step-by-step explanation:
Let the height of the flag post is h.
x = 1660 ft
According to the triangle, ABC
\(tan 41 = \frac{y}{1660}\\\\y = 1443 ft\)
Now According to the triangle ABD
\(tan 54 = \frac{h + y }{1660}\\\\h + 1443 = 2284.8\\\\h = 841.8 ft\)
Find X in this diagram
The value of x on the circle is x = 12
How to determine the value of xFrom the question, we have the following parameters that can be used in our computation:
The intersecting secant on the line
Using the theorem of intersectiong secant, we have:
(4 + 6) * 6 = x * 5
Evaluate the sum
This gives
10 * 6 = x * 5
Divide both sides by 5
So, we have the following representation
x = 60/5
Divide
x = 12
Hence, the solution is x = 12
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Find the slope when given the two points (-7, 4) and (-14, 3) a 7 b -1/7 c 1/7 d -7
Answer:
c
Step-by-step explanation:
because slope formula is
y1-y2/x1-x2 and 4-3 is 1 and -7- -14 which turns into -7 + +14 equals 7 so 1/7
- 5у - 25 - - 40
What is y
which of the following are rational numbers?
Answer:
1/2, 45, -2
Step-by-step explanation:
How do I find x in these equations
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5) Go....
\(17 = 4x + 1\)
\(4x + 1 = 17\)
Subtract sides 1
\(4x + 1 - 1 = 17 - 1\)
\(4x = 16\)
Divide sides by 4
\( \frac{4x}{4} = \frac{16}{4} \\ \)
\(x = 4\)
_________________________________
6) Go...
\(2x - 2 = 16\)
Add sides 2
\(2x - 2 + 2 = 16 + 2\)
\(2x = 18\)
Divide sides by 2
\( \frac{2x}{2} = \frac{18}{2} \\ \)
\(x = 9\)
_________________________________
7) Go...
\(95 = 7x + 18\)
\(7x + 18 = 95\)
Subtract sides 18
\(7x + 18 - 18 = 95 - 18\)
\(7x = 77\)
Divide sides by 7
\( \frac{7x}{7} = \frac{77}{7} \\ \)
\(x = 11\)
_________________________________
8) Go...
\(78 + 9x - 6 = 180\)
\(9x + 72 = 180\)
Subtract sides 72
\(9x + 72 - 72 = 180 - 72\)
\(9x = 108\)
Divide sides by 9
\( \frac{9x}{9} = \frac{108}{9} \\ \)
\(x = 12\)
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if p(x) = 4x -2 and p is the profit and x is the number of boxes of cookies sold. Then how much does each box of cookies cost?
Greetings from Brasil...
Given the function of this factory (P(X)), we want to know the profit (P) for a box of cookie, that is, when X = 1
P(X) = 4X - 2
for 1 box of cookies, X = 1, so
P(1) = 4.1 - 2
P(1) = 4 - 2
P(1) = 2So, for 1 box of cookie will cost $2
Remember that Molly has a $2500 down payment saved for this purchase. The dealer will take the $500 Cash Allowance straight off her total. How much loan does Molly need?
Using the Loan Calculator and the 1.9% APR offer, how much will Molly’s monthly payment be?
How much total interest will Molly pay using this plan?
When Molly adds all of her payments, how much will the car cost her using this plan?
To determine the loan amount Molly needs, subtract the down payment and cash allowance from the total cost of the car.
Loan amount = Total cost - Down payment - Cash allowance
To calculate Molly's monthly payment, use the Loan Calculator with the loan amount, loan term in months, and the APR of 1.9%.
To find the total interest paid, subtract the loan amount from the product of the monthly payment and the loan term.
To calculate the total cost of the car, add the down payment, cash allowance, loan amount, and total interest paid.
To calculate the loan amount Molly needs, we subtract the down payment and cash allowance from the total cost of the car. Let's assume the total cost is $X.
Loan amount = Total cost - Down payment - Cash allowance = X - $2500 - $500 = X - $3000.
To calculate Molly's monthly payment using the Loan Calculator and the 1.9% APR offer, we need to know the loan amount, the loan term in months, and the APR. Let's assume the loan term is Y months.
Using the Loan Calculator, we can determine the monthly payment based on the loan amount, loan term, and APR.
To calculate the total interest Molly will pay using this plan, we can multiply the monthly payment by the loan term in months and subtract the loan amount. This will give us the total interest paid.
Total interest = (Monthly payment * Loan term) - Loan amount.
To calculate the total cost of the car for Molly using this plan, we add the down payment, cash allowance, and the total interest paid to the loan amount.
Total cost = Loan amount + Down payment + Cash allowance + Total interest.
Please provide the values of X and Y to calculate the specific amounts.
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Consider a perfectly competitive firm that produces output from labor and capital under the following cond
2
ions: Y=100K
1/2
+40L
1/2
- P=$2 - W=$8 - R=$10 a. Suppose that the firm has decided to employ 25 units of labor and is currently employing 50 units of capital. What will its profit be at those employment levels? b. What equation describes the profit-moximizing quantity of capital for this firm? c. To raise profits, should the firm increase its capital employment (from 50 to something higher), or decrease it? Explain.
(a) The profit of the firm at the current employment levels of 25 units of labor and 50 units of capital can be calculated by subtracting the total cost from total revenue.
The total revenue is given by the output multiplied by the market price, which is $2. The total cost is the sum of the wage cost (W) and the rental cost of capital (R), multiplied by their respective quantities.
Profit = Total Revenue - Total Cost
Profit = (Output * Price) - (Wage * Labor + Rental * Capital)
Given that the output is determined by the production function Y = 100K^(1/2) + 40L^(1/2), the profit can be calculated as follows:
Profit = (100K^(1/2) + 40L^(1/2)) * $2 - ($8 * 25 + $10 * 50)
(b) The profit-maximizing quantity of capital for this firm can be determined by setting the marginal revenue product of capital (MRPK) equal to the rental cost of capital (R). MRPK represents the additional revenue generated by employing an additional unit of capital.
MRPK = R
The marginal revenue product of capital can be calculated as the partial derivative of the production function with respect to capital (K), multiplied by the market price (P):
MRPK = (∂Y/∂K) * P
Using the production function Y = 100K^(1/2) + 40L^(1/2), we can calculate the marginal revenue product of capital as follows:
MRPK = (∂Y/∂K) * P = (50K^(-1/2)) * $2
Setting this equal to the rental cost of capital (R) of $10, we have:
(50K^(-1/2)) * $2 = $10
Simplifying the equation, we find:
K^(-1/2) = 1/5
Squaring both sides of the equation, we get:
K = 25
Therefore, the profit-maximizing quantity of capital for this firm is 25 units.
(c) To raise profits, the firm should decrease its capital employment from 50 to 25 units. This is because the profit-maximizing quantity of capital is determined to be 25 units, as calculated in part (b). By employing fewer units of capital, the firm can reduce its rental cost while still maintaining the optimal level of capital for production. As a result, the firm can lower its total cost and increase its profit. Employing more capital beyond the profit-maximizing level would lead to diminishing returns, where the additional costs outweigh the additional revenue generated. Therefore, reducing capital employment to the optimal level of 25 units would be the most favorable decision for the firm to maximize its profits.
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A horse trainer records the distance a horse travels during three different trials. What is the horse's average speed in kilometers per minute?.
A horse trainer records the distance a horse travels during three different trials.
The horse's average speed = 0.3 kilometers per minute.
Given the following data:
Time 1 = 15 minutes
Time 2 = 30 minutes
Time 3 = 45 minutes
Distance 1 = 4.5 kilometers
Distance 2 = 9.0 kilometers
Distance 3 = 13.5 kilometers
To determine the horse's average speed in kilometers per minute:
First of all, we would find the total time and total distance covered:
For total time:
Total Time = 15+30+45
Total time = 90 minutes
For total distance:
Total Time = 4.5+9.0+13.5
Total time = 27 kilometers.
Mathematically, average speed is given by the formula:
\(Average speed = \frac{Total Distance}{Total Time}\)
\(Average Speed = \frac{27}{90}\)
Hence, the answer is the horse's average speed = 0.3 kilometers per minute.
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solve the inequality $2x - 5 \le -x 12$. give your answer as an interval.
Here's the LaTeX representation of the given explanation:
To solve the inequality, we can start by isolating the variable on one side of the inequality sign.
\(\[2x - 5 \le -x + 12\]\)
Adding \(\(x\)\) to both sides:
\(\[3x - 5 \le 12\]\)
Adding \(\(5\)\) to both sides:
\(\[3x \le 17\]\)
Dividing both sides by \(\(3\)\) :
\(\[x \le \frac{17}{3}\]\)
So the solution to the inequality is \(\(x\)\) is less than or equal to \(\(\frac{17}{3}\).\) In interval notation, this can be written as \(\((- \infty, \frac{17}{3}]\).\)
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The question is in the photo. Determine an equation for the pictured graph. Please help!!
Explanation:
It's probably not obvious, but the squiggly portion through the x intercept x = -1 is a triple root. This is because this portion resembles a cubic graph. If instead it was a more straightish line through this root, then we'd have a single root.
So because x = -1 is a triple root, this means the factor (x+1) has the exponent 3. We have the factor (x+1)^3
The other factor is (x-2) from x = 2 being the other root.
All together we have (x+1)^3*(x-2) as the complete factorization. The leading coefficient is 1 to have this graph open upward. Or put another way, since the end behavior is going to positive infinity for both endpoints, the leading coefficient must be positive.
What role do hypotheses play in scientific inquiry, and why are null hypothesis used sometimes?
A hypothesis is a testable guess about how a commodity works. It may be an idea, proposition, a possible medium of commerce, or a statement about an effect. A null hypothesis is a vaticination that there's no difference between groups or conditions or a statement or idea that can be falsified or proved wrong.
What's meant by a hypothesis in statistics?
In Statistics, a thesis is defined as a formal statement, which explains the relationship between the two or further variables of the specified population. It helps the experimenter to restate the given problem into a clear explanation for the outgrowth of the study.
Characteristics of hypothesis
The important characteristics of the hypothesis are
• The hypothesis should be short and precise
• It should be specific
• A hypothesis must be related to the being body of knowledge
• It should be able to verification
What's the Null hypothesis?
The null hypothesis is a kind of hypothesis that explains the population parameter whose purpose is to test the validity of the given experimental data. This thesis is either rejected or not rejected grounded on the viability of the given population or sample. In other words, the null hypothesis is a hypothesis in which the sample compliances effect by chance. It's said to be a statement in which the surveyors want to examine the data. It's denoted by H₀.
Hence a hypothesis is a testable guess about how a commodity works. It may be an idea, proposition, a possible medium of commerce, or a statement about an effect. A null hypothesis is a vaticination that there's no difference between groups or conditions or a statement or idea that can be falsified or proved wrong
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1. (a) Complete the following table for the relationship described by y = x². 3 X y --5 -4 -3 -2 -1 0 1 2 4 5
The completed table for the relationship described by y = x² is as shown below. To complete the table for the relationship described by y = x², we substitute the given values of x into the equation and calculate the corresponding values of y. Let's fill in the table:
x | y
-5 | 25
-4 | 16
-3 | 9
-2 | 4
-1 | 1
0 | 0
1 | 1
2 | 4
3 | 9
4 | 16
5 | 25
To calculate the values of y, we square the corresponding values of x. For example, when x = -5, we have y = (-5)² = 25. Similarly, when x = 4, y = 4² = 16.
The table shows the pairs of x and y values that satisfy the equation y = x². As we can see, the y values are the squares of the corresponding x values. For negative values of x, the resulting y values are positive since the square of any real number is always positive. For positive values of x, the resulting y values are also positive.
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Please help! I need the details for the transformations.
Answer:
its flipped over the y axis and then it goes 6 to the right and 6 up. To find how they are congruent, just use Pythagorean theorem to find the side lengths for each side and say that by using the rule SSS or side side side you know that the triangles are the same.
Step-by-step explanation:
to find the side length with Pythagorean theorem for example for side DE, side DE is basically the hypotenuse of the triangle to just count the height and base using the graph and in this case it would be h=6 b=3 and then use the Pythagorean theorem to find the actual side length of the line, which would be √45.
2 printers were purchased on 12 June 2022, costing $8000 each. It is estimated that the two printers have a scrap value of $320 each and can be used for 4 years each.
I already know the depreciation formula and how to get the answer but my question is do I keep the useful life as 4 years or do I calculate the useful life as 8 years as it says 4 years each for each printer?
The useful life for each printer should be considered as 4 years, treating them as individual assets rather than combining them.
The useful life of each printer should be considered separately as 4 years, rather than combining them to calculate a useful life of 8 years. Each printer is an individual asset with its own estimated lifespan. Therefore, when calculating the depreciation for each printer, you should use a useful life of 4 years.
By considering the useful life of each printer as 4 years, you are accounting for the estimated period over which each printer is expected to generate revenue and be useful in your business operations. Depreciation is an accounting method used to allocate the cost of an asset over its useful life, and it should reflect the specific lifespan of each individual asset.
Calculating the depreciation for each printer separately based on a 4-year useful life allows for more accurate financial reporting and decision-making. It aligns with the specific characteristics and expected lifespan of each printer, providing a clearer representation of the asset's value and its impact on your company's financial statements.
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the college of arts and science at delta university has nine departments. the number of faculty in each department is shown below. what is the median number of faculty in the college of arts and science?
The median number of faculty in departments in the college of arts and science is 12.
The median is a measure of central tendency that represents the middle value of a dataset when the values are sorted in ascending or descending order. Its purpose is to give a single representative value for the dataset, offering a way to understand the center of the data distribution. Unlike the mean, which can be affected by extreme values, the median is resistant to outliers and gives us a better understanding of what a typical value in the data set might be.
To find the median number of faculty in the College of Arts and Science at Delta University, first, arrange the department faculty numbers in ascending order:
7, 8, 9, 11, 12, 13, 14, 15, 17.
Since there are nine departments, which is an odd number, the median will be the middle value in the sorted list. So the middle number is the fifth number, which is 12
The median number of faculty in departments in the College of Arts and Science at Delta University is 12, as it is the middle value in the sorted list.
Note: The question is incomplete. The complete question probably is: The college of arts and science at delta university has nine departments. The number of faculty in each department is shown below. What is the median number of faculty in departments in the college of arts and science? 8, 12, 9, 15, 17, 11, 13, 14, 7.
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For brainiest:):):):):):)
For a.
While in the blueprint, each square is 1/4...in real life, it's 4 feet per square.
Meaning, the area of each square is (4 x 4) 16 square feet.
Since there are 8 squares/tiles in the bathroom...
...multiply 8 x 16 = 128 square feet in real life.
Multiply that with the cost, and since it costs $5 per square feet:
128 x 5 = $640 (answer)For b.
Do it in similar steps.
Living room: 4 x 7 = 28 tiles
Bedroom: 4 x 5 = 20 tiles
20 + 28 = 48 tiles (in blueprint)
...multiply 48 x 16 = 768 feet square (in real life)
[Convert feet into yards...3 feet equals 1 yard]
a square yard would be 3 feet x 3 feet = 9 feet...
...divide 768 by 9
768 ÷ 9 = 85.33 square yards (rounded up)
Multiply that with the cost, and since it costs $18 per square feet:
85.53 x 18 = $1535.94 (answer)the sum of the digits of two digit number is 10. when 18 is added to the number is digit reversed find and number
Answer:
The number is 46
Step-by-step explanation:
Equations
Suppose:
a = One digit of the number
b = Tens digit of the number
The sum of the digits is 10:
a + b = 10
The number expressed as two-digits quantity is ab, and its value is
10a+b
When we add 18 to that number, we have:
10a+b+18
And that is represented as the number reversed:
10a+b+18=10b+a
Simplifying:
9a+18=9b
Dividing by 9:
a + 2 = b
Substituting in the first equation:
a + a + 2 = 10
2a = 8
a = 4
b = a + 2 = 6
Thus the number is 46
A photograph measures 20 cm by 15 cm. A strip of constant width is to be added from each side of the photo, so the area is increased to 750 cm2.
Find the width of the cut.
Answer:
The area is 292.5 cm2
A circular flower bed is 16m in diameter and has a circular sidewalk around it that is 3 m wide. Find the area of the sidewalk in square meters. Use 3.14 for pi .
Answer:
\(178.98\ \text{m}^2\)
Step-by-step explanation:
d = Diameter of flower bed = 16 m
Thickness of sidewalk = 3 m
r = Radius of flower bed = \(\dfrac{d}{2}=\dfrac{16}{2}=8\ \text{m}\)
R = Radius of flower bed with sidewalk = \(8+3=11\ \text{m}\)
The required area is given by
\(A=\pi(R^2-r^2)\\\Rightarrow A=3.14\times (11^2-8^2)\\\Rightarrow A=178.98\ \text{m}^2\)
The radius of the sidewalk is \(178.98\ \text{m}^2\).
Find the value of y. Round your answer to the nearest tenth.
\( \huge \boxed { \sf Answer}\)
\( \cos(21°) = \frac{9}{y} \\ = > 0.9336 = \frac{9}{y} \\ = > \frac{y}{9} = 0.9 336\\ = > y = 9 \times 0.9336 \\ = > y = 8.4024 \\ = > y = 8.4\)
Hope you could understand.
If you have any query, feel free to ask.
A fair, six-sided number cube has the numbers 2, 2, 4, 4, 6, 6 on its faces. Sarah rolls this number cube 10 times and records the number of times a 2 is rolled. Have the conditions for a binomial setting been met for this scenario
Yes, the conditions for a binomial setting have been met in this scenario. A binomial setting requires the following conditions to be met:
1. The experiment consists of a fixed number of identical trials.
2. Each trial results in one of two outcomes: success or failure.
3. The probability of success is constant for each trial.
4. The trials are independent.
In this scenario, we have a fixed number of trials, which is 10. Each trial can result in either a 2 or a non-2, which meets the requirement of two possible outcomes. The probability of rolling a 2 is constant for each trial since the number cube is fair. Finally, each roll of the number cube is independent of the others, so the fourth requirement is met as well. Therefore, we can conclude that the conditions for a binomial setting have been met, and we can use the binomial distribution to calculate the probability of Sarah rolling a certain number of 2's in her 10 rolls of the number cube.
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A triangle has sides of lengths 16, 63, and 65. Is it a right triangle? Explain.
Answer:
Yes
Step-by-step explanation:
If a triangle is a right triangle, the 3 side lengths will check out in the Pythagorean Theorem.
\(a^2+b^2=c^2\)
where a and b are the legs and c is the hypotenuse.
The legs are the 2 shorter lengths and the hypotenuse is the longest length. The 3 side lengths are: 16,63 and 65. Therefore, 16 and 63 are the legs and 65 is the hypotenuse.
a=16
b=63
c=65
\(16^2+63^2=65^2\)
Evaluate each exponent.
16^2=16*16=256
\(256+63^3=65^2\)
63^2=63*63=3969
\(256+3969=65^2\)
65^2=65*65=4225
\(256+3969= 4225\)
Add 256 and 3969
\(4225=4225\)
The statement above is true; 4225 is equal to 4225. Therefore, this is a right triangle because the side lengths check out when plugged into the Pythagorean Theorem.
what type of conic section is given by the equation 4x^2+25y^2=100
The type of conic section that is represented in the provided equation form is ellipse.
How to identify conic section from an equation?To identify the type of conic section from an equation whether it is circle or ellipse.
Let us suppose the equation as,
\(Ax^{2} +By^{2}+Cx+Dy+E=0\)
In this equation,
if \(A=B\) ; then it is the equation of circle.if \(A\neq B\) ; but both \(A\) and \(B\) has same sign (either positive or negative), then it is the equation of ellipse.either \(A=0\) or \(B=0\), but not both, then it is the equation of parabola.if \(AB < 0\), then it is the equation of hyperbola.We have to identify the type of conic section that has the equation,
\(4x^{2} +25y^{2}=100\)
By comparing this equation with the above equation, we get,
\(A=4\\B=25\)
Here neither \(A\) or \(B\) is equal to \(0\) and the sign of both are
similar(positive), so the equation form is ellipse.
Therefore, the type of conic section which is represented in the provided equation form is ellipse.
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a spinner is divided into four equal sections that are numbered 2, 4, 5, and 7. the spinner is spun twice.
Total number of outcomes having sum greater than 7 & with atleast one even number is 7.
In the given question,
Spinner divided into four equal sections.
These are numbered 2, 4, 5, and 7.
The spinner is spun twice.
We have to find how many outcomes have a sum less than 7 and contain at least one even number.
Since the spinner is spun twice.
So total outcomes are:
(2,2),(2,3),(2,5),(2,8),(3,2),(3,3),(3,5),(3,8),(5,2),(5,3),(5,5),(5,8),(8,2),(8,3),(8,5),(8,8)
Outcomes where sum is greater than 7 are (2,8),(3,5),(3,8),(5,3),(5,5),(5,8),(8,2),(8,3),(8,5),(8,8).
Thus outcomes where sum is greater than 7 and atleast one even number are (2,8),(3,8),(5,8),(8,2),(8,3),(8,5),(8,8).
Thus total number of outcomes having sum greater than 7 & with atleast one even number is 7.
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The right answer is:
A spinner is divided into four equal sections that are numbered 2, 4, 5, and 7. The spinner is spun twice. How many outcomes have a sum greater than 7 and contain at least one even number?
Suppose that you can compute, store, and check for collisions 2,000,000 in- stances of SHA-3 (SHA3-256) in one second (this would require a lot of resources). How long do you have to run such a computation to have a probability at least 1/100,000 of finding a collision
This is an incredibly long time, equivalent to about 111,000,000 years! even with the ability to compute, store, and check for collisions at a rate of 2,000,000 instances per second, finding a collision in SHA3-256 with a probability of at least 1/100,000 is practically impossible.
The probability of finding a collision in a hash function with n-bit output, such as SHA3-256, is roughly proportional to the square root of the number of possible hash values is \(2^{(n/2)\).
SHA3-256, n is 256, so the number of possible hash values is
\(2^{(256/2)} = 2^{128.\)
Let t be the number of seconds we need to run the computation. In one second, we can compute 2,000,000 instances of SHA3-256.
In t seconds, we can compute 2,000,000t instances of SHA3-256.
The number of pairs of hash values that we can generate from 2,000,000t instances is
(2,000,000t choose 2) = (2,000,000t) × (2,000,000t - 1)/2.
To have a probability of at least 1/100,000 of finding a collision, we need the number of pairs of hash values to be at least 100,000 times the number of possible hash values, which is:
(2,000,000t) × (2,000,000t - 1)/2 >= 100,000 × 2¹²⁸
Simplifying and solving for t, we get:
\(t > = \sqrt{((100,000 \times 2^{128})/(2,000,000)^2 - 1/2,000,000)} \approx 3.52 \times 10^{15} seconds\)
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The probability at least 1/100,000 of finding a collision is 2.12 x \(10^{29\) seconds is approximately \(6.73 x 10^{21\) years
In cryptography, a collision occurs when two different inputs produce the same hash output.
The probability of finding a collision increases as the number of inputs increases, and this is what we want to calculate.
Assuming we can compute, store, and check for collisions 2,000,000 instances of SHA-3 (SHA3-256) in one second, we can compute the number of possible inputs that can be hashed in a given time frame.
If we assume a year contains 31,536,000 seconds, then in one year we can compute:
2,000,000 * 31,536,000 = 63,072,000,000,000
That is 63.07 trillion inputs hashed in one year.
Next, we need to calculate the probability of finding a collision among all these inputs.
To do this, we can use the birthday paradox formula, which states that the probability of finding a collision in a set of n items is approximately \(n^2\)/\(2^{(k+1)\).
Where k is the number of bits in the hash output.
For SHA3-256, k = 256.
So, the probability of finding a collision in our set of hashed inputs is:
63,072,000,00 / 2(256+1) = 0.01266
This is an extremely small probability, which means it would take a very long time to find a collision with a probability of at least 1/100,000.
In fact, we would need to compute and store billions of times more hashes than what we can currently achieve in a year.
Therefore, to answer your question, we can say that even with the ability to compute, store, and check for collisions 2,000,000 instances of SHA-3 (SHA3-256) in one second, it would take an impractical amount of time to find a collision with a probability of at least 1/100,000.
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how to find three-quarters of x
Answer:
3x/4
Step-by-step explanation:
Three quarters =3/4
3/4 of x = 3x/4
Answer:
3/4 times x
Step-by-step explanation:
of = multiply
4 quarters = 1 so subtract 1/4 quarter's and it equals 3/4 of x
A simple random sample of 49 students at UH indicated that 85% of them are involved in some type club. Find the 99% confidence interval that estimates the true proportion of UH students that are involved in a club
Answer:
0.85 ± 0.1314
Step-by-step explanation:
P*=0.85
n=49
z for 99% confidence interval = 2.576
The estimates the true proportion of UH students that are involved in a club (99% confidence interval) =
\(0.85\pm 2.576* \sqrt{\frac{0.85(1-0.85)}{49} } \\\\= 0.85\pm 0.1314\)
=0.9814, 0.7186
We are 99% confident that the true proportion of UH students that are involved in a club is 0.85 with a margin of error of 0.1314.