Answer:
E = 0.875.
Step-by-step explanation:
Substitute the values for t* and s^d.
0.918 * 2.696 = 2.474928.
Substitute 8 for n.
The square root of 8 is 2.8284271247461900976033774484194.
2.474928 / 2.8284271247461900976033774484194 = 0.87501918587422984573516646770771
0.87501918587422984573516646770771 ≈ 0.875
Answer:E = 0.875.
Step-by-step explanation:
Parker has $15 to order pizza. The plain cheese pizza costs $11.75, and each extra topping costs $1.25.
What is the greatest number of toppings Parker can get with the money he has?
Answer:
he can order 2 of the extra toppings
) The value of shares, t years after their floatation on the stock market, is modelled by V=10e 0.09t
Find the initial value of these shares and values after 5 years, 10 years and 12 years, respectively. Round your answer to two decimal places. [9 marks] During a recession, a firm's revenue declined continuously so that the total revenue (TR) in t years' time is modelled as TR=10e −0.19t
(in million dollars) Calculate the current revenue and revenue in 5 years' time. After how many years the revenue of this firm is going to drop to $1 million? Round your answer to two decimal places.
After approximately 12.13 years, the revenue of this firm is going to drop to $1 million.
The value of shares t years after their floatation on the stock market, is modelled by V = 10e0.09t
The initial value of shares = V when t = 0. So, putting t = 0 in V = 10e0.09t,
we get
V = 10e0.09 × 0= 10e0 = 10 × 1 = 10 million dollars.
The values after 5 years, 10 years and 12 years, respectively are:
For t = 5, V = 10e0.09 × 5 ≈ 19.65 million dollarsFor t = 10, V = 10e0.09 × 10 ≈ 38.43 million dollarsFor t = 12, V = 10e0.09 × 12 ≈ 47.43 million dollars
The total revenue (TR) in t years' time is modelled as TR = 10e−0.19t (in million dollars)
The current revenue is the total revenue when t = 0.
So, putting t = 0 in TR = 10e−0.19t, we get
TR = 10e−0.19 × 0= 10e0= 10 million dollars
Revenue in 5 years' time is TR when t = 5.
So, putting t = 5 in TR = 10e−0.19t, we get
TR = 10e−0.19 × 5≈ 4.35 million dollars
To find when the revenue of this firm is going to drop to $1 million, we need to solve the equation TR = 1.
Substituting TR = 1 in TR = 10e−0.19t, we get1 = 10e−0.19t⟹ e−0.19t= 0.1
Taking natural logarithm on both sides, we get−0.19t = ln 0.1 = −2.303
Therefore, t = 2.303 ÷ 0.19 ≈ 12.13 years.
So, after approximately 12.13 years, the revenue of this firm is going to drop to $1 million.
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determine the volume of the tin in cubic meter
Answer:
Measure ment is required
Step-by-step explanation:
But for the volime for tin when it is
Cuboid= l*b*h
Cylinder=pie*radius square*height
a publisher reports that 70% of their readers own a particular make of car. a marketing executive wants to test the claim that the percentage is actually different from the reported percentage. a random sample of 200 found that 64% of the readers owned a particular make of car. determine the p-value of the test statistic. round your answer to four decimal places.
The p-value of the test statistic is 0.0512
We can conduct a hypothesis test for the proportion using a z-test.
The null hypothesis is that the proportion of readers who own a particular make of car is equal to 70%:
H0: p = 0.7
The alternative hypothesis is that the proportion is different from 70%:
Ha: p ≠ 0.7
The test statistic is calculated as:
z = (p' - p) / sqrt(p*(1-p)/n)
where p' is the sample proportion, p is the hypothesized proportion under the null hypothesis, and n is the sample size.
Plugging in the values from the problem, we get:
z = (0.64 - 0.7) / sqrt(0.7*(1-0.7)/200) = -1.96
Using a standard normal distribution table or calculator, we can find that the probability of getting a z-score of -1.96 or lower (or 1.96 or higher) is 0.0256. Since this is a two-tailed test, we double the probability to get the p-value:
p-value = 2*0.0256 = 0.0512
Therefore, the p-value of the test statistic is 0.0512, rounded to four decimal places.
Since the p-value is greater than the commonly used significance level of 0.05, we do not reject the null hypothesis and conclude that there is not enough evidence to support the claim that the proportion of readers who own a particular make of car is different from 70%.
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By using compatible numbers, the estimate is
Use a calculator to multiply 92 × 12. What do you get?
Circle whether the estimates were all less than or greater than
the actual product.
By using compatible numbers, the estimate is 900
Using a calculator, the actual product is 1104The estimates were less than the actual product.How to estimate the product expression?From the question, we have the following expression that can be used in our computation:
92 x 12
From the question, we are to make use of compatible numbers
This means that we have the following approximation
92 = 90
12 = 10
Next, we estimate the product using approximated values
i.e.
Product = Approximation of 92 x Approximation of 12
Substitute the known values in the above equation, so, we have the following representation
Product = 90 x 10
Evaluate the products
Product = 900
Using a calculator, we have
Product = 92 * 12
Evaluate the products
Product = 1104
900 is less than 1104
Hence, the estimate is less than the actual product
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The sum of the three angles of
any triangle is [ ? ]0.
Which verbal expression best represents the algebraic expression 3n – 4?
Answer:
four less than three times a number
5 (-x-1)=x+21 - 6xn what is the solution to the following equation
Use the Right Triangle Alt. Thm., Pythag. Thm. and/or Similar Triangles to solve.
Answer:
Step-by-step explanation:
What is the rejection region in a one-tailed hypothesis test with a significance level of 0.05?
A) the upper 5% of the distribution
B) the lower 5% of the distribution
C) the upper 2.5% of the distribution
D) the lower 2.5% of the distribution
The rejection region in a one-tailed hypothesis test with a significance level of 0.05 is the upper 5% of the distribution. The correct answer is option A.
In a one-tailed hypothesis test with a significance level of 0.05, the rejection region is determined based on the tail of the distribution that corresponds to the alternative hypothesis. Since the significance level is 0.05, which means a 5% chance of making a Type I error, the rejection region will be either in the upper or lower tail of the distribution, depending on the direction of the alternative hypothesis.If the alternative hypothesis suggests that the parameter is greater than the null hypothesis value, the rejection region will be in the upper tail of the distribution. In this case, the correct choice would be: A) the upper 5% of the distributionIf the alternative hypothesis suggests that the parameter is smaller than the null hypothesis value, the rejection region will be in the lower tail of the distribution. In this case, the correct choice would be: B) the lower 5% of the distributionThere are two forms of the one-tailed test: a right-tailed test (a test where the rejection region is on the right-hand side of the sampling distribution) and a left-tailed test (a test where the rejection region is on the left-hand side of the sampling distribution).Thus, the rejection region in a one-tailed hypothesis test with a significance level of 0.05 is the upper 5% of the distribution.
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another easy question pls answer
Answer:
22.5 degrees and 67.5 degrees
Step-by-step explanation:
complementary angles add up to 90°
x + 3x = 90°
4x = 90
90/4 = x
x = 22.5
The first angle is 22.5
The second angle is 3 times as much
22.5 x 3 = 67.5
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
[infinity]consider the series ∑ 1/n(n+2)n=1 determine whether the series converges, and if it converges, determine its value.Converges (y/n) = ___Value if convergent (blank otherwise = ____
The value of the series is: ∑ 1/n(n+2) = lim N→∞ S(N) = 1/2.
The series ∑ 1/n(n+2)n=1 converges. To determine its value, we can use the partial fraction decomposition:
1/n(n+2) = 1/2 * (1/n - 1/(n+2))
Using this decomposition, we can rewrite the series as:
∑ 1/n(n+2) = 1/2 * (∑ 1/n - ∑ 1/(n+2))
The first series ∑ 1/n is the harmonic series, which diverges. However, the second series ∑ 1/(n+2) is a shifted version of the harmonic series, and it also diverges. But since we are subtracting a divergent series from another divergent series, we can use the limit comparison test to determine whether the original series converges or diverges. Specifically, we can compare it to the series ∑ 1/n, which we know diverges. This gives:
lim n→∞ 1/n(n+2) / 1/n = lim n→∞ (n+2)/n^2 = 0
Since the limit is less than 1, we can conclude that the series ∑ 1/n(n+2) converges. To find its value, we can evaluate the partial sums:
S(N) = 1/2 * (∑_{n=1}^N 1/n - ∑_{n=1}^N 1/(n+2))
= 1/2 * (1/1 - 1/3 + 1/2 - 1/4 + ... + 1/(N-1) - 1/(N+1))
As N approaches infinity, the terms in the parentheses cancel out except for the first and last terms:
S(N) → 1/2 * (1 - 1/(N+1))
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calculate the solar flux density (also known as the solar constant) for mercury using the following information: solar luminosity = 3.865 x 10^26 w distance of mercury from the sun = 5.791 x 10^10 m
Therefore, the solar flux density for mercury after the calculation is 9.12 x 10⁻³ W/m².
The solar flux density also referred to as the solar constant is the total amount of energy derived from the sun per unit area per given unit of time. It is considered to be equal to solar luminosity divided by the surface area of a given sphere that has a radius equivalent to the distance between the respective planet from the sun.
using the formula for finding the solar flux density,
solar flux density = solar luminosity /(4 x π x distance between mercury and the sun)
solar flux density = 3.865 x \(10^{26}\) /(4 x π x ( 5.791 x \(10^{10}\)))
solar flux density = 9.12 x 10⁻³ W/m²
Therefore, the solar flux density for mercury after the calculation is 9.12 x 10⁻³ W/m².
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I need help with this problem
Answer:
\(4 \: \: ft\)
Answer D is correctStep-by-step explanation:
\(64 = x \times x \times x \\ {x}^{3} = 64 \\ x = 4\)
to check whether the answer correct or wrong
\(x \times x \times x \\ 4 \times 4 \times 4 \\ 16 \times 4 \\ = 64\)
12-(3r+2) = -7(r+6) show work please!!!!!
Answer:
-10r-32
Step-by-step explanation:
12-(3r+2)+-7(r+6)
12-3r-2-7(r+6)
12-3r-2-7r-42
-32-3r-7r
-32-10r
-10r-32
Write 7 times 100,000 + 6times 10,000+ 2times 1,000+ 5 times 100 + 8 times 1 in standered form
2) At age 22, Joseph places $4,500 in a retirement account with a fixed annual interest rate 7%,compounded continuously. He never places any additional money in the account. What will hisbalance be at age 55 ?
lets remember what it means compound continuously,
the interest never stopped, the balance is earning interest at all time
Joseph is 22 and he wants to know how much money he will have at 55
55-22=33
his balance will gain interest for 33 years, this is our time
there is a 7% rate
the formula is
P(t)= P(0) e ^rt
our t is 33
rate=7%
Joseph will have a balance at age 55, 45,334.99 dollars
Consider an ideal gas at 27.0 degrees Celsius and 1.00atmosphere pressure. Imagine the molecules to be uniformly spaced,with each molecule at the center of a small cube. What is thelength Lof an edge of each small cube if adjacent cubes touch but don'toverlap?
The length L of an edge of each small cube if adjacent cubes touch but don't overlap is 3.45 nm.
The formula to be used for calculation is -
PV = Nkt, where P is pressure, V is volume, N is number of molecules, k is Boltzmann constant and T is temperature in Kelvin.
T = 273 + 27
Performing addition on Right Hand Side of the equation
T = 300 K
P = 101325 Pa
k = 1.38 × \( {10}^{-23} \) J/K
Now finding the volume
V = (1 × 1.38 × \( {10}^{-23} \) × 300)/101325
Performing multiplication and division on Right Hand Side of the equation
V = 4.09 × \( {10}^{-3} \) m³
As we know, V = L³
So, L = \( {V}^{1/3} \)
Keep the value of volume
L = \( { (4.09/1000) }^{1/3} \)
Performing calculations
L = 3.45 × \( {10}^{-9} \) m
Hence, length is 3.45 nm.
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A popular musician believes an increase in the number of times songs are listened to via a streaming service leads to an increase in recording sales. The musician's recording company selected 50 songs at random and used the data to test the claim that there is a positive linear relationship between the number of times a song is listened to and recording sales. The following hypotheses were used to test the claim. H, :B1 = 0 H: B1 > 0 The test yielded a t-value of 1.592 with a corresponding p-value of 0.059. Which of the following is the correct interpretation of the p-value? A. If the alternative hypothesis is true, the probability of observing a test statistic of 1.592 or smaller is 0.059. B. If the alternative hypothesis is true, the probability of observing a test statistic of 1.592 or greater is 0.059. If the null hypothesis is true, the probability of observing a test statistic of 1.592 or greater is 0.059. D. If the null hypothesis is true, the probability of observing a test statistic of 1.592 is 0.059. E. If the null hypothesis is true, the probability of observing a test statistic of 1.592 or smaller is 0.059.
Answer: C - If the null hypothesis is true, the probability of observing a test statistic pf 1.592 or greater is 0.059
Step-by-step explanation:
The correct interpretation of the p-value is option C. If the null hypothesis is true, the probability of observing a test statistic of 1.592 or greater is 0.059.
In hypothesis testing, the p-value helps us determine the likelihood of obtaining a test statistic at least as extreme as the one observed, assuming the null hypothesis is true. In this case, the null hypothesis (H₀) states that B1 = 0, meaning there is no relationship between the number of times a song is listened to and recording sales. The alternative hypothesis (H₁) states that B1 > 0, suggesting a positive linear relationship between the variables. Since the test is one-tailed and we are testing for a positive relationship, we are looking for a test statistic of 1.592 or greater.
Based on the given p-value of 0.059, we can conclude that if the null hypothesis is true, there is a 5.9% chance of observing a test statistic of 1.592 or greater. This helps us to assess the strength of the evidence against the null hypothesis and make a decision whether to reject or fail to reject it based on a chosen significance level.
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20, ...... ,0,-10,......, ......., -40, ......., -60
Answer:
20, 10,0, -10
-20, -30,
-40, -50
-60
Step-by-step explanation:
help please, i need this answered asap
Answer:48
Step-by-step explanation:
What is the value of the expression 3² .(2³+4)/2²
Answer:
27
Step-by-step explanation:
3^2(2^3+4)/2^2
3^2(8+4)/2^2
3^2(12)/2^2
9(12)/4
108/4
27
Solve for X. I give 5 stars, heart, and maybe brainliest if I can to the best answer!!
-1x+1/5+5x=41/5
do the best you can, if you don't know this please do not feel bad, I don't know how to do it either
Answer:
x=2
Step-by-step explanation:
isolate variable and solve for x
first you would add -x+5x and subtract 1/5 from each side
you would get 4x=40/5
multiply each side by 5
20x=40
x=2
1.12-1. Derive the convolution formula in the irequency domain. That is, let V1(f)=F[v1(t)] and V2(f)=F[v2(t)]. Show that if V(f)=F[v1(t)v2(t)]. thet V(f)=2π1∫−oaV1(λ)V2(f−λ)diV(f)=2π1∫−[infinity]aV2(λ)V1(f−λ)di
Hence,\($V_1(f) = 0$ and $V_2(f) = 0$ for $|f| > a$.\) \($V(f) = \frac{1}{2\pi} \int_{-a}^{a} V_1(\lambda) V_2(f-\lambda) d\lambda$.\)
is the convolution formula in the irequency domain
The given functions are
\($V_1(f) = F[v_1(t)]$ and $V_2(f) = F[v_2(t)]$. Let $V(f) = F[v_1(t) v_2(t)]$.\)
We need to show that
\($V(f) = \frac{1}{2\pi} \int_{-a}^{a} V_1(\lambda) V_2(f-\lambda) d\lambda$.\)
The convolution theorem states that if f and g are two integrable functions then
\($F[f * g] = F[f] \cdot F[g]$\)
where * denotes the convolution operation. We know that the Fourier transform is a linear operator.
Therefore,
\($F[v_1(t)v_2(t)] = F[v_1(t)] * F[v_2(t)]$\)
Thus,
\($V(f) = \frac{1}{2\pi} \int_{-\infty}^{\infty} V_1(\lambda) V_2(f-\lambda) d\lambda$\)
Now we need to replace the limits of integration by a to obtain the desired result.
Since \($V_1(f)$\) and \($V_2(f)$\)are Fourier transforms of time-domain signals \($v_1(t)$\) and \($v_2(t)$,\)
respectively,
they are band-limited to \($[-a, a]$.\)
Hence,\($V_1(f) = 0$ and $V_2(f) = 0$ for $|f| > a$.\)
Therefore, \($V(f) = \frac{1}{2\pi} \int_{-a}^{a} V_1(\lambda) V_2(f-\lambda) d\lambda$.\)
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prove that √-2 is irrational using strong induction
Using strong induction, we can prove that the square root of -2 is irrational by showing that it cannot be expressed as a fraction of coprime odd integers.
To prove that √-2 is irrational using strong induction, we need to show that for any natural number n, if the square root of -2 can be expressed as a fraction a/b, where a and b are coprime integers, then a and b must be odd.
We can start by using the base case, n = 1. Assume that √-2 can be expressed as a fraction a/b where a and b are coprime integers. Then, we have
√-2 = a/b
Squaring both sides gives
-2 = a^2/b^2
Multiplying both sides by b^2 gives
-2b^2 = a^2
This implies that a^2 is even, and therefore a is also even. We can express a as 2k for some integer k, which means
-2b^2 = (2k)^2
Simplifying, we get
-2b^2 = 4k^2
Dividing both sides by -2 gives
b^2 = -2k^2
This implies that b^2 is even, which means that b is also even. However, this contradicts our assumption that a and b are coprime integers. Therefore, √-2 cannot be expressed as a fraction a/b where a and b are coprime integers.
Now, let's assume that for all n ≤ k, the square root of -2 cannot be expressed as a fraction a/b where a and b are coprime integers with a and b odd. We want to prove that this also holds for n = k+1.
Assume that √-2 can be expressed as a fraction a/b where a and b are coprime integers with a and b odd. Then, we have
√-2 = a/b
Squaring both sides gives
-2 = a^2/b^2
Multiplying both sides by b^2 gives
-2b^2 = a^2
This implies that a^2 is even, and therefore a is also even. We can express a as 2k for some integer k, which means
-2b^2 = (2k)^2
Simplifying, we get
-2b^2 = 4k^2
Dividing both sides by -2 gives
b^2 = -2k^2
This implies that b^2 is even, which means that b is also even. However, this contradicts our assumption that a and b are coprime integers with a and b odd. Therefore, √-2 cannot be expressed as a fraction a/b where a and b are coprime integers with a and b odd.
By strong induction, we have proven that for any natural number n, the square root of -2 cannot be expressed as a fraction a/b where a and b are coprime integers with a and b odd. Therefore, √-2 is irrational.
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3x^2-5x+2 5x^2-2x-6 add the two expression
Answer:
8x^2-7x-4
Step-by-step explanation:
Answer:
8x^2 - 7x -4
Step-by-step explanation:
Work out
(
1.8
×
10
−
3
)
÷
(
2
×
10
−
7
)
Give your answer in standard form
Answer:
1.15
Step-by-step explanation:
(1.8*10-3)/(2*10-7)
(18-3)/(20-7)
15/13
1.15
..................
How would you suggest that managers avoid the quick-fix mentality that makes management by best-seller so tempting?
You can suggest that managers should avoid the quick-fix mentality that makes management by best-seller so tempting by implementing the following strategies:
1. Understand the Unique Nature of Your Business: Managers should take the time to understand the unique nature of their business. They should realize that what worked for another company may not work for their own company.
2. Avoid Short-Term Solutions: Managers should avoid short-term solutions that provide quick results. They should focus on long-term solutions that will benefit the organization in the long run.
3. Develop a Comprehensive Strategy: Managers should develop a comprehensive strategy that includes long-term goals and objectives. They should also have a plan in place to achieve those goals.
4. Invest in Employee Development: Managers should invest in employee development by providing training and development opportunities. This will help to build a strong workforce that is capable of handling complex challenges.
5. Encourage Collaboration: Managers should encourage collaboration among team members. This will help to create a culture of teamwork and cooperation.
6. Monitor Progress: Managers should monitor progress and adjust strategies as necessary. This will help to ensure that the organization is on track to achieving its goals.
By following these strategies, managers can avoid the quick-fix mentality that makes management by best-seller so tempting. They can focus on long-term solutions that will benefit the organization in the long run.
Hope this helped you...
How many lbs of peanuts must mike add to 9 lbs of mixed nuts containing 40% peanuts to make a mixture with 73% peanuts
The new mixture exists 56.5% peanuts.
How to estimate the total number of peanuts required for the mixture?The first batch of 9 lb of mixed nuts possesses 40% peanuts.
This means the quantity of peanuts exists:
9 \(*\) 40/100 = 3.6 lb
The second batch of 9 lb of mixed nuts possesses 73% peanuts.
This means the quantity of peanuts exists:
9 \(*\) 73/100 = 6.57 lb
The total quantity of peanuts in the mix exists
3.6 lb + 6.57 lb = 10.17 lb
There exist 9 lb + 9 lb = 18 lb of mix.
Therefore, the percent of peanuts in the mix exists:
10.17 / 18 \(*\) 100 = 56.5%
The new mixture exists 56.5% peanuts.
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A person flying a kite has released 176 m of string. The string makes an angle of 27° with the
ground. How high is the kite? Round to the nearest meter.
157 meters
391 meters
80 meters
198 meters
Answer:
80 m high and 157 m away
hope this helped