Answer:
its c i got it good on ed hope it helps
The diameter of a circle is 6 m. Find its area in terms of π π.
Step-by-step explanation:
this is totally simple.
the formula for the area of a circle (as you can find with any search on the internet in seconds) :
A = pi×r²
r is the radius.
and once you understand even the most basics of a circle, you know that the radius is half of the diameter.
so, in our case, r = 6/2 = 3 m
the area of the circle is therefore
pi×r² = pi×3² = pi×9 m²
A sequence is defined recursively. find the first seven terms of the sequence. =−1 2−2, 1=1, 2=3 1 =1 2 = 3
A sequence is (recursively) defined as a1 = 0, a2 = 1, n>2, \(a_n = a_{n-1} - 3a_{n-2}\). The first seven terms are 0, 1, 1, -2, -5, 1, 16.
A recursive sequence is a sequence in which terms are defined using one or more previous terms which are given.
a1 = 0
a2 = 1
\(a_n = a_{n-1} - 3a_{n-2}\)
a3 = a2 - 3*a1 = 1 - 0 = 1
a4 = a3 - 3*a2 = 1 - 3 = -2
a5 = a4 - 3*a3 = -2 - 3 = -5
a6 = a5 - 3*a4 = -5 + 6 = 1
a7 = a6 - 3*a5 = 1 +15 = 16
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Please helpppp. Find the value of B in the rhombus
Answer:
18
Step-by-step explanation:
Angle AEB is a 90 angle
90 = 5b
18 = b
3 = X X =
fill in the blanks
The blanks when completed is: If 3 = x, then x = 3
How to complete the blanksFrom the question, we have the following parameters that can be used in our computation:
3 = x x = 3
The above equation is an illustration of the symmetric property of equation
The symmetric property of an equation states that if one side of an equation is equal to the other side, then the other side is equal to the first side.
In other words, if we have an equation that says a = b, then we can use the symmetric property to say that b = a
Using the above as a guide, we have the following:
If 3 = x, then x = 3
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I need help with geometry and help learning it
Answer:
Option (2)
Step-by-step explanation:
HL theorem for congruence states that if hypotenuse and one leg of one right triangle are congruent to the corresponding sides of the of the right triangle, both the triangles will be congruent.
By this theorem,
ΔACB ≅ ΔFED
If AB ≅ DF [Hypotenuse]
AC ≅ EF [Leg]
By these properties,
AC = EF = 12
Or BC = DF = 28
Therefore, Option (2) will be the correct option.
Solve the following problems using Elimination.
NO LINKS PLS-
8x - 5y =-18
2x + 5y = 58
9514 1404 393
Answer:
(x, y) = (4, 10)
Step-by-step explanation:
The coefficients of y are opposites, so the y-terms can be eliminated by adding the equations.
(8x -5y) +(2x +5y) = (-18) +(58)
10x = 40 . . . . . . simplify
x = 4 . . . . . . . . . divide by 10
Substituting this into the second equation gives ...
2(4) +5y = 58
5y = 50 . . . . . . . . subtract 8
y = 10 . . . . . . . . . .divide by 5
The solution is (x, y) = (4, 10).
I NEED HELP ON THIS ASAP!!!!!!!
The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x). A function's range is the collection of values it can take as input.
What does a calculus domain mean?The collection of all potential inputs for a function is its domain. For instance, the domain of f(x)=x2 and g(x)=1/x are all real integers with the exception of x=0.
How to Determine a Function's Range?Think about the function y = f. (x). The range of the function is the range of all the y values, from least to maximum. Substitute all possible values of x into the provided expression of y to see whether it is positive, negative, or equal to other values.
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Find a 95% confidence interval for the mean difference in wholesale price between the east coast and west coast suppliers. Round your answers to three decimal places, and use four decimal places for any interim calculations. You can use R to get the summary statistics, but you can also solve this problem by hand using skills from univariate summaries. Wholesale Prices of Fish in Dollars Hint: Recall that the question is asking for the mean difference in wholesale price between the east coast and west coast suppliers. Make sure you are taking the differences accordingly. With % confidence, it can be said that the true mean difference in wholesale price between the east coast and west coast suppliers is between $ and $
With 95% confidence, it can be said that the true mean difference in wholesale price between the east coast and west coast suppliers is between $-6.716 and $-3.284 (rounded to three decimal places).
Given the following data for Wholesale Prices of Fish in Dollars, we are required to find a 95% confidence interval for the mean difference in wholesale price between the east coast and west coast suppliers.
Here is the data:
East Coast: 5, 7, 6, 9, 8, 8West Coast: 11, 14, 10, 12, 11, 13We can solve this problem by hand using skills from univariate summaries. Steps to find the 95% confidence interval for the mean difference in wholesale price between the east coast and west coast suppliers are as follows:
Step 1: Calculate the mean and standard deviation of the difference data. We calculate the difference as:
East Coast - West Coast: -6, -7, -4, -3, -3, -5
Mean difference: -5 Standard deviation of the difference: 1.632993
Step 2: Find the critical value for a 95% confidence interval using a t-distribution with n-1 degrees of freedom.
Since n=6, the degrees of freedom are 5.
Using the t-distribution table, the critical value is 2.571.
Step 3: Calculate the margin of error using the formula: Margin of Error = Critical value * Standard Error Standard Error = Standard deviation of the difference / sqrt(n)Standard Error = 1.632993 / sqrt(6)
Margin of Error = 2.571 * 0.666667Margin of Error = 1.715825Step 4: Calculate the confidence interval using the formula: Confidence interval = Mean difference ± Margin of Error Confidence interval = -5 ± 1.715825
Confidence interval = (-6.7158, -3.2842)
Therefore, with 95% confidence, it can be said that the true mean difference in wholesale price between the east coast and west coast suppliers is between $-6.716 and $-3.284 (rounded to three decimal places).
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Charles is going to graph the function y = x + 2. What will be the y-intercept on the graph?
Question 9 options:
(0, -2)
(-2, 0)
(0, 2)
(2, 0)
Answer:
(0, 2)
Step-by-step explanation:
The y-intercept on a graph represents the point where the graph intersects the y-axis. In the equation y = x + 2, the y-intercept can be found by setting x = 0 and solving for y.
When x = 0:
y = 0 + 2
y = 2
Therefore, the y-intercept on the graph of the function y = x + 2 is (0, 2).
Which of the following is a factor
Answer:
(3x-8)
Step-by-step explanation:
6x^2-13x-8=(3x-8)(2x+1)
Thus, (3x-8) is one of the factors of the formula.
Find the gradient of the line segment between the points (2,4) and (4,6)
Answer: The gradient is \(\boxed{\sf 1}\)
Explanation:
\(\sf gradient: \dfrac{y_2 - y_1}{x_2- x_1} \ \quad where \ (x_1 , \ y_1), ( x_2 , \ y_2) \ are \ points\)
Here given points: (2, 4), (4, 6)
\(\rightarrow \sf gradient: \dfrac{6-4}{4-2} = \dfrac{2}{2} = 1\)
Step-by-step explanation:
that is also called the slope or inclination or change rate.
that is the ratio of y change / x change.
when going from point 1 to point 2 (the sequence is not important, but once you picked one you need to use it for x and y), we see
x changes by +2 (from 2 to 4).
y changes by +2 (from 4 to 6).
so it is +2/+2 = 2/2 = 1/1 = 1
A data flow diagram (DFD) does not provide any information about process timing. T/F
Answer:
Step-by-step explanation:
True.
A Data Flow Diagram (DFD) is a graphical representation of a system or a process that shows how data flows through different components of the system. It provides a visual representation of the system's inputs, processes, and outputs.
While a DFD can provide information on the data that flows between the different components of a system, it does not provide any information about the timing or sequence of those processes. A DFD is a static diagram that only depicts the flow of data in a system and does not provide any indication of when or how frequently processes occur
Is 8 a factor of 63q + 15
Answer:
because it has many factors other than 1 and 18
Determine whether the pair of figures is similar. If so, find the scale factor. Explain your reasoning.
OA) no; ZBCD # ZFCG
OB) no; BD #CO
OC) Yes: A BDC-A FGC because ZB
OD) Yes: A BDC-A FGC because ZB
4
LO
ZF. ZD
ZF. ZD
5
D 3
C
25
5
20
BD
ZG. ZBCD ZFCG, and C=
FG
ZG, ZBCD = ZFCG, and
BD
=
DC
CB
The pair of figures is similar by SSS
How to determine if the pair of figures is similarThe complete question is added as an attachment
From the question, we have the following parameters that can be used in our computation:
Triangles BDC and FGC
When the side lengths of the triangle are compared, we have:
Side lengths of FGC are 5/3 multiplied by the side lengths of BDC
This means that the triangles are similar
And the similarity statement is SSS
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A rectangular prism has dimensions 2 cm by 2 cm by 3 cm. What are the surface area and volume?
HELP! WILL MARK BRAINLIEST!!!!
Answer:
its c
Step-by-step explanation:
Been stuck on this assignment for a while and it's overdue. I want to turn it in today. Can someone help me get a head start so I can get it done today? This would be a nice birthday present, I'm 18 on March 1 :)
Answer:
Its mostly a step by step process
Step-by-step explanation:
Just Put your full name and the date your depositing the money where the date is and how many bills your depositing how many coins if you don't have coins don't answer it the total amount would be 800 and the net deposit. I added a link just in case. Happy birthday btw.
What is the coefficient of the x5y5-term in the binomial expansion of (2x – 3y)10?
Answer:
-1,959,552
Step-by-step explanation:
You want to know the coefficient of x^5y^5 in the expansion of (2x -3y)^10.
Binomial expansionThe k-th term of the binomial expansion of (a +b)^n, with k ∈ [0, n], is ...
C(n, k)·(a^(n-k))(b^k)
ApplicationFor n=10, k=5, the term is ...
C(10, 5)·(2x)^5(-3y)^5 = 252·32·(-243)·x^5·y^5
= -1959552x^5y^5
The coefficient is -1,959,552.
__
Additional comment
The function C(n, k) tells the number of ways k elements can be chosen from a set of n, without regard to order. The value is ...
C(n, k) = n!/(k!(n-k)!)
Many graphing and statistical calculators can compute the value for you. In this case, it is ...
(10·9·8·7·6)/(5·4·3·2·1) = 3·2·7·6 = 252
an oil storage tank can be described as the volume generated by revolving the area bounded by about the x-axis. find the volume of the tank (in cubic meters). round to four decimal places.
The volume of the tank can be found using the given information as:\(Volume=\int\limits^b_a {\pi f(x)^2} \, dx\)
How to find the volume of the tank?Assuming that the area bounded is given by a function f(x), the volume of the oil storage tank can be calculated using the formula for the volume of a solid of revolution:
\(Volume=\int\limits^b_a {\pi f(x)^2} \, dx\)
where a and b are the limits of integration. In this case, the axis of revolution is the x-axis, so we are revolving the area about the x-axis.
Therefore, the volume of the tank can be found using the given information as:
\(Volume=\int\limits^b_a {\pi f(x)^2} \, dx\)
We need more information about the function f(x) or a curve that bounds the area in order to find the limits of integration and calculate the volume.
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Explain how the Quotient of Powers Property was used to simplify this expression.
5 to the fourth power, over 25 = 52
A- By simplifying 25 to 52 to make both powers base five and subtracting the exponents
B- By simplifying 25 to 52 to make both powers base five and adding the exponents
C- By finding the quotient of the bases to be one fifth and cancelling common factors
D- By finding the quotient of the bases to be one fifth and simplifying the expression
Pls help its for flvs work
Answer:
A
Step-by-step explanation:
5^4/25 = 5²
5^4/5² = 5²
5^(4 - 2) = 5²
5² = 5²
Rewrite the denominator 25 as 5². The subtract exponents, 4 - 2 = 2.
Answer: A
The ratio of hardback books to paperback books on a bookshelf is 9: 21.
What fraction of the books on the bookshelf are hardback books? Give your answer in its simplest form.
Answer:
I think the right answer would be 3/10 if u need explanation then reply me
michael is 3 33 times as old as brandon. 18 1818 years ago, michael was 9 99 times as old as brandon. how old is brandon now?
Brandon is currently 6 81 years old.
Let M be Michael's age and B be Brandon's age.
We are given that Michael is 3 33 times as old as Brandon. This means that M = 3 33 × B
We are also given that 18 1818 years ago, Michael was 9 99 times as old as Brandon. This means that M - 18 1818 = 9 99 × (B - 18 1818).
We can combine these two equations to solve for Brandon's current age:
3 33 × B = (9 99 × B) + 18 1818
2 66 × B = 18 1818
B = 18 1818 / 2 66 = 6 81.
Therefore, Brandon is currently 6 81 years old.
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solve pls brainliest
Answer:
$4.25
Step-by-step explanation:
Answer:
Sales tax: $4.25
Find the measure of unknown angle
Answer:
The angle in the upper right quadrilateral corner = 68 degrees because vertical angles are equal.
Angle Y = 68 (opposite quadrilateral angles are equal).
All quadrilateral angles add to 360 so:
68 + 68 + x + z = 360 = 292
angle X + Z = 292
Therefore angle x = angle z = 146
Step-by-step explanation:
Answer:
Step-by-step explanation:
angle Z = 68 degree (being alternate angles)
angle X = 68 degree (opposite angle of a parallelogram is equal)
y + z = 180 degree (sum of adjecent angles of a parallelogram is 180 degree)
y + 68 = 180
y = 180 - 68
y = 112 degree
Solve the system of equations using the substitution method x + 5y = 5 x = - 4y
Answer:
Below
Step-by-step explanation:
x + 5y =5 <=====since the first equation states x = - 4y substitute that in:
-4y+5y = 5
y = 5 use this value in either of the equations to compute x = -20
Determine the mean and standard deviation of the variable X in each of the following binomial distributions. a. n=5 and π=0.10 b. n=3 and π=0.40 c. n=5 and r=0.50 d. n=3 and π=0.80 a. When n=5 and π=0.10, determine the mean. μ= (Type an integer or a decimal. Do not round.)
The mean (μ) for the given binomial distribution is 0.50.
To calculate the mean (μ) of a binomial distribution, we multiply the number of trials (n) by the probability of success in a single trial (π). Let's examine each scenario in detail:
a. When n = 5 and π = 0.10:
μ = 5 * 0.10
= 0.50
For this binomial distribution, with 5 trials and a success probability of 0.10, the mean (μ) is 0.50. This means that, on average, we would expect to have 0.50 successes per trial.
b. When n = 3 and π = 0.40:
μ = 3 * 0.40
= 1.20
In this case, the mean (μ) of the binomial distribution is 1.20. It indicates that, on average, there would be 1.20 successes per trial when there are 3 trials and a success probability of 0.40.
c. When n = 5 and π = 0.50:
μ = 5 * 0.50
= 2.50
For a binomial distribution with 5 trials and a success probability of 0.50, the mean (μ) is 2.50. This means that, on average, we would expect to have 2.50 successes per trial.
d. When n = 3 and π = 0.80:
μ = 3 * 0.80
= 2.40
In this scenario, the mean (μ) of the binomial distribution is 2.40. It suggests that, on average, we would expect to have 2.40 successes per trial when there are 3 trials and a success probability of 0.80.
The mean (μ) provides a measure of the central tendency or the average number of successes in a binomial distribution based on the given parameters.
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Which of the following is a reason for needing to acquire a 1040X form?
Answer: If you ever discover an error on a tax return, realize you qualify for deductions or credits you didn't take, or forgot to include some income, you may be able to amend your return by filing a Form 1040X.
Step-by-step explanation:
1. Describe the relationship you see between elevation and temperature in these data sets.
In response to the stated question, we may state that The scatter plot indicates a clustering pattern in the data, and as elevation increases, temperature drops.
What exactly is a scatter plot?"Scatter plots are graphs that show the association of two variables in a data collection. It is a two-dimensional plane or a Cartesian system that represents data points. The X-axis represents the independent variable or characteristic, while the Y-axis represents the dependent variable. These plots are sometimes referred to as scatter graphs or scatter diagrams."
"A scatter plot is also known as a scatter chart, scattergram, or XY graph. The scatter diagram plots numerical data pairings, one variable on each axis, to demonstrate their connection."
Because the graph is a scatter plot, the data displays a clustering pattern.
We may deduce from the figure that as height increases, temperature falls.
As a result, C and E are the proper choices.
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The correct question is -
The scatter plot shows the relationship between elevation and temperature on a certain mountain peak in North America. Which statements are correct?
A. The data shows one potential outlier
B. The data shows a linear association
C. The data shows a clustering pattern
D. The data shows a negative association
E. As elevation increases, temperature decreases
In your reservoir, you have a production well which flows for 48 hours at 200 STB/day, and then shut-in for 24 hours. The following additional data are given : Pi = 3100 psi Ct = 15x10^-6 psi^-1 Bo = 1.3 bbl/STB ϕ = 15% μ=1.2 cp K = 45 md and h = 60 ft
a-) Calculate the pressure in this production well at 12 hours of shut in
b-) Explain how can you use superposition in time to analyze a pressure build-up test.
a) To calculate the pressure at 12 hours of shut-in:
substitute the given values into the pressure buildup equation and solve for P(t=12).
b) Superposition in time is used in pressure buildup analysis by adding or summing the responses of multiple transient tests to analyze and interpret reservoir behavior and properties.
We have,
a) To calculate the pressure in the production well at 12 hours of a shut-in, we can use the equation for pressure transient analysis during shut-in periods, known as the pressure buildup equation:
P(t) = Pi + (Q / (4πKh)) * log((0.14ϕμCt(t + Δt)) / (Bo(ΔP + Δt)))
Where:
P(t) = Pressure at time t
Pi = Initial reservoir pressure
Q = Flow rate
K = Permeability
h = Reservoir thickness
ϕ = Porosity
μ = Viscosity
Ct = Total compressibility
t = Shut-in time (12 hours)
Δt = Time since the start of the flow period
Bo = Oil formation volume factor
ΔP = Pressure drop during the flow period
Given:
Pi = 3100 psi
Q = 200 STB/day
K = 45 md
h = 60 ft
ϕ = 15%
μ = 1.2 cp
Ct = 15x10^-6 psi^-1
Bo = 1.3 bbl/STB
t = 12 hours
Δt = 48 hours
ΔP = Pi - P(t=Δt) = Pi - (Q / (4πKh)) * log((0.14ϕμCt(Δt + Δt)) / (Bo(ΔP + Δt)))
Substituting the given values into the equation:
ΔP = 3100 - (200 / (4π * 45 * 60)) * log((0.14 * 0.15 * 1.2 * 15x\(10^{-6}\) * (48 + 48)) / (1.3 * (3100 - (200 / (4π * 45 * 60)) * log((0.14 * 0.15 * 1.2 * 15 x \(10^{-6}\) * (48 + 48)) / (1.3 * (0 + 48))))))
After evaluating the equation, we can find the pressure in the production well at 12 hours of shut-in.
b) Superposition in time is a principle used in pressure transient analysis to analyze and interpret pressure build-up tests.
It involves adding or superimposing the responses of multiple transient tests to simulate the pressure behavior of a reservoir.
The principle of superposition states that the response of a reservoir to a series of pressure changes is the sum of the individual responses to each change.
Superposition allows us to combine the information obtained from multiple tests and obtain a more comprehensive understanding of the reservoir's behavior and properties.
It is a powerful technique used in reservoir engineering to optimize production strategies and make informed decisions regarding reservoir management.
Thus,
a) To calculate the pressure at 12 hours of shut-in:
substitute the given values into the pressure buildup equation and solve for P(t=12).
b) Superposition in time is used in pressure buildup analysis by adding or summing the responses of multiple transient tests to analyze and interpret reservoir behavior and properties.
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escribir una funcion cuadratica f cuyos ceros sean -13 y -2 por favor ayudaaa
Answer:
x²+15x+26
Step-by-step explanation:
zeros are x=-13, x=-2
x=-13 then x+13=0
x=-2 then x+2=0
(x+13) (x+2)
x²+15x+26
y=ax²+bx+c