Given :-
Radius of cylinder is 7ft.Height is 12ft .To Find :-
The volume of the cylinder .Solution :-
As we know that the volume of the cylinder is ,
\(\longrightarrow\) Volume = πr²h
On substituting the respective values ,
\(\longrightarrow\) Volume = 3.14 * (7ft)²*12ft
\(\longrightarrow\) Volume = 3.14*49ft²*12ft
\(\longrightarrow\) Volume = 1846.32 ft.³
Hence the required answer is 1846.32 ft³.
A shipping company handles containers in three different sizes: (1) 27 ft3 (3 Ý 3 Ý 3), (2) 125 ft3, and (3) 512 ft3. Let Xi (i = 1, 2, 3) denote the number of type i containers shipped during a given week. With
?1 = 230 ?2 = 240 ?3 = 120
?1 = 11 ?2 = 12 ?3 = 7
(a) Assuming that X1, X2, X3 are independent, calculate the expected value and variance of the total volume shipped. [Hint: Volume = 27X1 + 125X2 + 512X3.]
expected value ft3
variance ft6
(b) Would your calculations necessarily be correct if the Xi's were not independent? Explain.
The expected value would not be correct, but the variance would be correct
. Neither the expected value nor the variance would be correct.
The expected value would be correct, but the variance would not be correct.
Both the expected value and the variance would be correct.
(a) The expected value of the total volume shipped is 30,870 ft³, and the variance is 2,579,680 ft⁶, (b) Neither the expected value nor the variance would be correct.
A-To calculate the expected value of the total volume shipped, we use the linearity of expectations. Since X₁, X₂, and X₃ are independent, the expected value of the total volume is equal to the sum of the expected values of each type of container. Thus, the expected value can be calculated as follows:
E(Volume) = E(27X₁ + 125X₂ + 512X₃)
= 27E(X₁) + 125E(X₂) + 512E(X₃)
= 27 * 230 + 125 * 240 + 512 * 120
= 30,870 ft³
To calculate the variance of the total volume shipped, we need to know the variances of each type of container and whether there is any covariance between them. Since the problem statement does not provide information about covariance, we assume independence between X₁, X₂, and X₃. In that case, the variance of the total volume is equal to the sum of the variances of each type of container. Thus, the variance can be calculated as follows:
Var(Volume) = Var(27X₁ + 125X₂ + 512X₃)
= (27²)Var(X₁) + (125²)Var(X₂) + (512²)Var(X₃)
= (27² * 11) + (125² * 12) + (512² * 7)
= 2,579,680 ft⁶
b- If the variables X₁, X₂, and X₃ were not independent, the linearity of expectations and the property of variance for independent variables would not hold. The expected value calculation assumes that the variables are independent, and if this assumption is violated, the expected value calculation would no longer be correct. Similarly, the variance calculation assumes independence, and if the variables are not independent, the variance calculation would also be incorrect. Therefore, both the expected value and the variance would be incorrect if the variables X₁, X₂, and X₃ were not independent.
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A circle has a circumference of 7{,}8507,8507, comma, 850 units. What is the radius of the circle?
Use 3. 14 for pi and enter your answer as a decimal
Which list shows the following numbers in order from least to greatest?
26
37
6
-5.17,
33
5
Answer:
-5.17 , 5 , 6 , 26 , 33 , 37
Step-by-step explanation:
the negative numbers are usually the least . All u had to do was put the other numbers from least to greatest <3
- Mark me brainliest !
Answer:
- 5.17
5
6
26
33
37
hope this helps :)
What is the most common error when entering a formula is to reference the wrong cell in the formula?
The most common error when entering a formula is to reference the wrong cell in the formula.
This error occurs when the cell references within a formula do not match the intended cells. It can lead to incorrect calculations and produce unexpected results. For example, if a formula is supposed to use data from cell A1 but mistakenly refers to cell B1, the calculation will be based on the wrong data. It is important to double-check and ensure that the cell references in a formula accurately reflect the intended data sources to avoid this common mistake.
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* You have a dog that can run 5 km/hr. How fast can she run in mi/hr? (i.e. convert the rate to miles per hour) (1.6 km=1mi) DO NOT JUST TYPE THIS INTO A CONVERTER ONLINE. YOU WILL NOT GET THE ANSWER RIGHT. Express your answer as decimal, rounded to the nearest thousandth (three decimal places) in mi/hr - no spaces EXAMPLE: 78.345mi/hr
The dog's running speed of 5 km/hr can be converted to approximately 3.125 mi/hr by multiplying it by the conversion factor of 1 mi/1.6 km. Rounding to the nearest thousandth, the dog can run at about 3.125 mi/hr.
To convert the dog's running speed from kilometers per hour (km/hr) to miles per hour (mi/hr), we need to use the conversion factor of 1.6 km = 1 mi.First, we can convert the dog's speed from km/hr to mi/hr by multiplying it by the conversion factor: 5 km/hr * (1 mi/1.6 km) = 3.125 mi/hr.
However, we need to round the answer to the nearest thousandth (three decimal places). Since the digit after the thousandth place is 5, we round up the thousandth place to obtain the final answer.
Therefore, the dog can run at approximately 3.125 mi/hr.
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-7(-w-1)-2 simplest form
The probability of a Type II error is represented by ____. alpha beta the Type I error sigma The null hypothesis is rejected when the p-value exceeds the level of significance True False
The probability of a Type II error is represented by beta. Thus, the correct answer is option B.
Beta represents the probability of failing to reject the null hypothesis when it is false.
On the other hand, Type I error (alpha) represents the probability of rejecting the null hypothesis when it is true. A Type II error occurs when a false null hypothesis is not rejected. Hence, beta is the probability of making a Type II error.
The null hypothesis is rejected when the p-value is less than or equal to the level of significance, not exceeds it.
The p-value is the probability of obtaining a result as extreme as or more extreme than the observed result when the null hypothesis is true. If the p-value is less than the level of significance, the null hypothesis is rejected, and vice versa.
Hence, the statement "The null hypothesis is rejected when the p-value exceeds the level of significance" is false.
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The number of children attending swimming lessons increased by 35 %. 20 children attended the lessons before the increase.
How many children now attend swimming lessons after the increase?
Plz Help me this is already overdue
Answer:
2nd Column: \(\frac{39-78}{25-59}\)
3rd Column:\(1.56\)
Step-by-step explanation:
2) For this, just follow the formula given underneath the chart.
3) Here, simplify the equation used in the 2nd Column. \(\frac{39-78}{25-50} = \frac{-39}{-25} = -1.56\)
Find the x and y intercepts of the line. -2y-6x=3
Answer:
x-intercept: (−1/2,0)
y-intercept: (0,−3/2)
There are 32 students in the school drill team performance. Each row of team members must have the same number of students. If there are at least 8 students in each row, what are all the possible arrangements?
Answer:
4 rows with 8 students in each
Step-by-step explanation:
4x8=32
a small hair salon in denver, colorado, averages about 22 customers on weekdays with a standard deviation of 6. it is safe to assume that the underlying distribution is normal. in an attempt to increase the number of weekday customers, the manager offers a $2 discount on 5 consecutive weekdays. she reports that her strategy has worked because the sample mean of customers during this 5-weekday period jumps to 27. What is the probability to get a sample average of 93 or more customers if the manager had not offered the discount?
The probability of getting a sample average of 93 or more customers, if the manager had not offered the discount, is zero.
What is the probability to get a sample average of 93 or more customers if the manager had not offered the discount?To calculate the probability of obtaining a sample average of 93 or more customers if the manager had not offered the discount, we need to use the concept of sampling distributions and the Central Limit Theorem.
Given that the underlying distribution of the number of customers is normal, with an average of 22 and a standard deviation of 6, we can calculate the standard deviation of the sample mean (also known as the standard error) using the formula:
Standard Error (SE) = Standard Deviation / √(Sample Size)
In this case, the sample size is 5 (for the 5-weekday period), so the standard error is:
SE = 6 / √5 ≈ 2.683
Next, we can calculate the z-score for a sample average of 93 using the formula:
z = (Sample Average - Population Mean) / Standard Error
z = (93 - 22) / 2.683 ≈ 26.359
Finally, we can use the standard normal distribution table or a calculator to find the probability associated with this z-score:
P(Sample Average ≥ 93) = P(z ≥ 26.359)
Since the z-score is extremely large, the probability associated with it is essentially zero.
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∆GHI is an isosceles triangle with a Vertex angle H if the m
Answer:
try and find out
Step-by-step explanation:
Triangle GHI is an isosceles triangle. H is the vertex. If the measure of H is 73 degrees what is the measure of G? A.73 B.17 C.34 D.104 A)73 degrees?
Answer:
what the question?????
-3(3-10x) could you answer it quickly for me? please and thank you
It's distribute property.
Answer:
-9+30x
Step-by-step explanation:
-3 x 3 is -9
-3 x -10x is 30x
Answer:
-9 + 30x
Step-by-step explanation:
Like you mentioned, to solve this expression we need to use the distributive property...
We have to distribute -3 to 3 and -10x.
When multiplying negative and positive numbers it is important to know that...
-negative times negative equal positive
-negative times positive equal negative
-3 · 3 = -9
-3 · -10x = 30x
Therefore the answer is -9 + 30x
Hope this helps! Let me know if you have any further questions :D
Choose a company with your option and explain how
that company can create a business model? There are 8 steps in the
business module, explain each step based on the company which you
have chosen.
Company: Amazon, 8 Steps in the Business Model: Define the value proposition. What value does Amazon offer its customers? Amazon offers a convenient and affordable way to shop for a wide variety of products.
Identify the target market. Who are Amazon's customers? Amazon's target market is people who want to buy products online.
Determine the revenue streams. How does Amazon make money? Amazon makes money through product sales, advertising, and subscription fees.
Assess the cost structure. What are Amazon's costs? Amazon's costs include salaries, rent, and marketing.
Develop a marketing plan. How will Amazon reach its target market? Amazon's marketing plan includes online advertising, search engine optimization, and social media marketing.
Create a sales strategy. How will Amazon sell its products? Amazon's sales strategy includes a focus on customer service and convenience.
Build a team. What skills and experience does Amazon need to build a successful business? Amazon needs a team with a variety of skills, including product development, marketing, and sales.
Continuously improve. How will Amazon ensure that its business model is successful? Amazon will continuously improve its business model by listening to customer feedback and adapting to changes in the market.
The 8 steps in the business model are essential for any company that wants to be successful. By following these steps, companies can ensure that they are offering a valuable product or service to the right customers, and that they are able to make money.
In the case of Amazon, the company has clearly defined its value proposition, target market, and revenue streams.
Amazon's marketing plan is also effective, and the company has built a team with the skills and experience necessary to be successful. Finally, Amazon is committed to continuous improvement, which is why the company has been so successful over the years.
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Question 22 OT Which of the following equations represents a parabola that opens down and has a vertex at (3,-1)? O A. y = -2(x - 3)2 - 1 O B. y = -2(x+3)2 - 1 C. y = 2(x-3)2 - 1 D. y = -2(x - 3)2 +1 x – SUBMIT PREVIOUS
Given data:
The options in the probelm.
The first option expression is,
\(\begin{gathered} y=-2(x-3)^2-1 \\ (y+1)=-2(x-3)^2 \\ \end{gathered}\)Here, negative sign shows the parabola is oppen down and vertix is (3,-1).
Thus, first option is correct.
6 stylar wants to adopt a whate through BC wild killer whale adoption program. The cost of I year adoption is $594 Stylor whale walks his neighbour's dog to fause the money. He gets & 3 for each walk Make a table to show the amount left to raise 1, 2, 3,4 and 5 walks b wright a pattern rule that relates the number of walls to the amount left to raise write on expression to represes de after pattern C e Find the amount left to rise after it wo after how many walks all exglas how tax though money? How do do you know
Answer:
Number of Walks | Amount Left to Raise
0 | $594
1 | $581
2 | $568
3 | $555
4 | $542
5 | $529
Pattern Rule: The amount left to raise decreases by 13 each time the number of walks increases by 1.
Expression: Let n = the number of walks. Amount left to raise = 594 - 13n
After 2 walks, there is $568 left to raise. You know this because 2 multiplied by 13 (the number subtracted for each walk) is 26. Subtract 26 from 594 to get 568.
Philip claimed that the expression -p + 5 + p is positive for any value of p. Determine whether Philip's statement is always true, sometimes true, or never true. Provide evidence to support your conclusion
The expression is always positive Philip's statement is always true.
The expression -p + 5 + p can be written as -p + 5 + p = -p + p + 5,
which simplifies to 5, no matter what the value of p is.
An expression is a mathematical phrase that can contain numbers, variables, and operations such as addition, subtraction, multiplication, and division. Expressions may or may not have an equal sign. Expressions can be evaluated by replacing any variables with specific values and then simplifying the resulting expression using the order of operations.
Therefore, the expression is always positive and Philip's statement is correct.
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Help Please !!
A right triangle pyramid has a height of 10 inches and a base of 41.57 square inches. What is the volume, in cubic inches, of the pyramid?
Answer:
Step-by-step explanation:
Volume of pyramid = Base area * height
= 41.57 * 10
= 415.7 cubic inches
The length of a bacterial cell is about 5 x 10−6 m, and the length of an amoeba cell is about 3.5 x 10−4 m. how many times smaller is the bacterial cell than the amoeba cell? write the final answer in scientific notation with the correct number of significant digits. 1.4 x 101 7 x 101 143 x 101 7 x 103
The bacterial cell is about 7 × 10^(1) times smaller than the amoeba cell in scientific notations.
What are scientific notations?
Scientific notations are a way of representing either a very small or a very large number in the powers of 10. Scientific notations comprise digits from 1 to 9 with powers of 10.
Calculation of the amount by which a bacterial cell is smaller than the amoeba cell
Given the length of amoeba cell in scientific notations is 3.5 × 10^(- 4)
The length of a bacterial cell in scientific notations is 5 × 10^(- 6)
To obtain how small the bacterial cell is from the amoeba cell, we need to divide both the lengths i.e.
= 3.5 × 10^(- 4) / 5 × 10^(- 6)
= 0.7 × 10^(2)
= 7 × 10^(1)
Hence, the bacterial cell is about 7 × 10^(1) times smaller than the amoeba cell in scientific notations.
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plz help asap I'll mark brainliest!!!
SOMEONE PLEASE HELP ME WITH THIS ILL GIVE YOU BRAINLIST ANSWER!!! PLEASE
Can someone help me please
Answer:
the (X) is 4 so that means both of X's are 4 and u need to choose 4
Step-by-step explanation:
X=4
Can someone please help me
Answer:
no
Step-by-step explanation:
preguntaste si alguien te podia ayudar y no puedo. gracias por su comprensin
Find the value of x.
Answer:
10
please mark brainiest
Someone help me pleaseeee
For the given right triangle, L = 66°, LK = 3.56, and the hypotenuse, LM = 8.75.
What is right triangle?A right triangle, right-angled triangle, or more formally an orthogonal triangle—previously known as a rectangled triangle—is a triangle with one angle that is a right angle (i.e., a 90-degree angle), meaning that two of its sides are perpendicular. The foundation of trigonometry is the relationship between the sides and other angles of a right triangle.
The hypotenuse is the side that faces the right angle (side c in the figure). Legs are the sides that are next to the right angle (or catheti, singular: cathetus). Side a can be thought of as the side that is adjacent to angle B and opposite to (or opposite) angle A, whereas side b is the side that is adjacent to angle A and opposite to angle B.
Given a right triangle with base = 8 and an angle = 24°
Using angle sum property of triangle
24 + 90 + angle L = 180
L = 66°
Using Sohcahtoa
Tangent: tan(θ) = Opposite / Adjacent
tan(24°) = LK/8
0.445 = LK/8
LH = 8 × 0.445
LK = 3.56
LM = \(\sqrt{MK^2 + LK^2}\)
LM = \(\sqrt{8^2 + 3.56^2}\)
LM = 8.75
Thus, For the given right triangle, L = 66°, LK = 3.56, and the hypotenuse, LM = 8.75.
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At Lara' party, 4 gallon of fruit punch are hared equally among 18 friend. How much fruit punch will each peron get?
Answer: About 0.2 gallons
Step-by-step explanation: 4/18=0.2 repeating, so each person gets about 0.2 gallons.
Each of her friend will get 4 and a half gallons of juice.
What is division?Division is one of the four main arithmetical operations by which we find the equal distribution of something.
Given that, At Lara's party, 4 gallon of fruit punch are shared equally among 18 friend.
To find how much each of them got, we will divide total amount of punch by total number friends
Amount of juice each of them gets, = 18/4 = 4.5
Hence, Each of her friend will get 4 and a half gallons of juice.
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use algebra tiles to solve 6x + 2 = 8
Answer: answer is 1
HELPPPPPPPPPPPPPPPPPP
Answer:
$6.00
$24.00
$112.00
$625.00
Step-by-step explanation:
All you have to do is multiply each number by .05
Find the product of (2x + 3) and (x + 5)
Answer:
2x^2 + 13x + 15
Step-by-step explanation: