If (f + g)(x) = 3x2 + 2x – 1 and g(x) = 2x – 2, what is f(x)?
Five individuals, including a and b, take seats around a circular table in a completely random fashion. suppose the seats are numbered 1, . . . , 5. let x = a's seat number and y = b's seat number. if a sends a written message around the table to b in the direction in which they are closest, how many individuals (including a and
b.would you expect to handle the message?
The number of individuals you would expect to handle the message is 2.5.
Joint probability distributionLet Z represent the number of individuals that handle the message
Table for the possible joint value of X and Y
Z Y
1 2 3 4 5
X 1 - 2 3 3 2
2 2 - 2 3 3
3 3 2 - 2 3
4 3 3 2 - 2
5 2 3 3 2 -
Each cell contain=1/4×1/5=1/20
Hence:
Number of individual=10×2×1/20+10×3×1/20
Number of individual=20×0.05+30×0.05
Number of individual=2.5
Therefore the number of individuals you would expect to handle the message is 2.5.
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Owners of a recreation area are filling a small pond with water. They are adding water at a rate of 35 liters per minute. There are 700 liters in the pond to start. Let W represent the total amount of water in the pond (in liters), and let T represent the total number of minutes that water has been added. Write an equation relating W to T . Then use this equation to find the total amount of water after 19 minutes.
An equation relating W to T is,
W = 700 + 35T
And, Total amount of water after 19 minutes is, 1365 liters
We have to given that,
Owners of a recreation area are filling a small pond with water. They are adding water at a rate of 35 liters per minute.
There are 700 liters in the pond to start.
Now, Let W represent the total amount of water in the pond (in liters), and let T represent the total number of minutes that water has been added.
Hence, an equation relating W to T is,
W = 700 + 35T
So, For T = 19 minutes,
W = 700 + 35 x 19
W = 700 + 665
W = 1365
Therefore, Total amount of water after 19 minutes is, 1365 liters
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Your science quiz had 17 questions and you answered 13 of the questions correctly. What is your present score?
dived 13 by 17
13/17 = 0.7647
= 76.47%
if you need to round the number it would be 76%, which is a 76 grade
Will someone please answer this??
Rewrite with only sin x and cos x. cos 3x
Making use of the fact hat eq. (6.20) is an exact differential expression, show that what is the result of application of this equation to an ideal gas
Triangle XYZ is reflected across the line x = 3. What is the reflection image of X?
Answer:
It's (7,5)
Step-by-step explanation:
What is the answer to this question?
9/12= 0.75
8.00 * 0.75 = 6.00
the 9" costs $6.00
Evaluate the integral below, where e lies between the spheres x2 + y2 + z2 = 9 and x2 + y2 + z2 = 25 in the first octant.
The student's question involves integrating a function in a region bounded by two spheres in the first octant, implying the use of spherical coordinates and integration over a sphere with a constant radius.
The question pertains to evaluating an integral within the region bounded by two spheres in the first octant. When dealing with spheres and integrals, the use of spherical coordinates is often beneficial. The question suggests using spheres with a constant radius and spherical coordinates (r, θ, φ), where a typical point in space is represented as (r sin(θ) cos(φ), r sin(θ) sin(φ), r cos(θ)). To integrate over the sphere, we consider the bounds given by the radii of the inner and outer spheres, (r = 3 and r = 5, respectively, since the square roots of 9 and 25 are 3 and 5), and the fact that it is within the first octant which further restricts the limits of θ and φ. The rest of the provided excerpts seem to be unrelated specifically to this problem but are examples of standard integrals and applications of integration in physics and potential theory.
The final answer after evaluating the integral is: [tex]\[\frac{49\pi}{3}\][/tex]. This is the value of the integral over the region between the spheres [tex]\( x^2 + y^2 + z^2 = 9 \) and \( x^2 + y^2 + z^2 = 25 \)[/tex] in the first octant.
To evaluate the given integral over the region between the spheres [tex]\( x^2 + y^2 + z^2 = 9 \)[/tex]and [tex]\( x^2 + y^2 + z^2 = 25 \)[/tex] in the first octant, we can use spherical coordinates. In spherical coordinates, the volume element is given by [tex]\( r^2 \sin(\phi) \, dr \, d\theta \, d\phi \),[/tex] where r is the radial distance, [tex]\( \theta \)[/tex] is the azimuthal angle, and [tex]\( \phi \)[/tex] is the polar angle.
The limits for the integral are as follows:
[tex]- \( 3 \leq r \leq 5 \) (limits of the radii for the spheres)\\- \( 0 \leq \theta \leq \frac{\pi}{2} \) (first octant)\\- \( 0 \leq \phi \leq \frac{\pi}{2} \) (first octant)[/tex]
The integral to evaluate is not specified, so let's assume it's a simple function like \( f(x, y, z) = 1 \) for the sake of demonstration. The integral would then be:
[tex]\[\iiint_E 1 \, dV = \int_{0}^{\frac{\pi}{2}} \int_{0}^{\frac{\pi}{2}} \int_{3}^{5} r^2 \sin(\phi) \, dr \, d\theta \, d\phi\][/tex]
Now, let's evaluate this integral step by step:
[tex]\[\int_{0}^{\frac{\pi}{2}} \int_{0}^{\frac{\pi}{2}} \int_{3}^{5} r^2 \sin(\phi) \, dr \, d\theta \, d\phi\][/tex]
[tex]\[= \int_{0}^{\frac{\pi}{2}} \int_{0}^{\frac{\pi}{2}} \left[ \frac{1}{3} r^3 \sin(\phi) \right]_{3}^{5} \, d\theta \, d\phi\][/tex]
[tex]\[= \int_{0}^{\frac{\pi}{2}} \int_{0}^{\frac{\pi}{2}} \left( \frac{125}{3} - \frac{27}{3} \right) \sin(\phi) \, d\theta \, d\phi\][/tex]
[tex]\[= \int_{0}^{\frac{\pi}{2}} \int_{0}^{\frac{\pi}{2}} \frac{98}{3} \sin(\phi) \, d\theta \, d\phi\][/tex]
[tex]\[= \int_{0}^{\frac{\pi}{2}} \left[ \frac{98}{3} \theta \right]_{0}^{\frac{\pi}{2}} \, d\phi\][/tex]
[tex]\[= \int_{0}^{\frac{\pi}{2}} \frac{98}{3} \cdot \frac{\pi}{2} \, d\phi\][/tex]
[tex]\[= \frac{98\pi}{6}\][/tex]
[tex]\[= \frac{49\pi}{3}\][/tex]
So, the value of the integral over the specified region is[tex]\( \frac{49\pi}{3} \).[/tex]
A jeep and BMW enter a highway running east-west at the same exit heading in opposite directions. The jeep entered the highway 30 minutes before the BMW did, and traveled 7 mph slower than the BMW. After 2 hours from the time the BMW entered the highway, the cars were 306.5 miles apart. Find the speed of each car, assuming they were driven on cruise control.
Answer:
3x+27+3.5x=397.5
6.5x=370.5
x=57 mph for jeep and travels 199.5 miles in 3.5 hours
x+9=66 mph for B and travels 198 miles in 3 hours
Step-by-step explanation:
speed of jeep=x, time is >>>>> t+0.5 in hours or 3.5 hours here
speed of B=x+9, time is >>>>>>>>>>>> 3 hours
distance is >>>>>>>>> speed time
Hope it Helps.
Answer on: june 11, 2021
what does it mean to say that's data point has a residual of 0
Answer:
The correct answer is “the point lies directly on the regression line”
Step-by-step explanation:
When you do a regression analysis, then you get a line of regression that best fits it. The data points usually tend to fall in the regression line, but they do not precisely fall there but around it. A residual is the vertical distance between a data point and the regression line. Every single one of the data points had one residual. If one of this residual is equal to zero, then it means that the regression line truly passes through the point.
If marc ABC = 184°, what is m∠ABC?
the angle is 1/2 of the arc
184/2 = 92 degrees
It would be half of the intercepted arc which is
360-184 = 176
176/2 = 88 degrees
Let f(x) = -20x2 + 14x + 12 and g(x) =5x-6 Find f/g and state its domain a. 5x - 6; all real numbers except x =6/5 b. 5x - 6; all real numbers c. –4x – 2; all real numbers except x =6/5 d. –4x – 2; all real numbers
Final answer:
To find f/g, divide each term in f(x) by g(x). Resulting in f(x)/g(x) = -4x - 2 with the domain being all real numbers except x = 6/5. Hence, the correct answer is c. -4x - 2; all real numbers except x = 6/5.
Explanation:
To find the function f/g, we divide the function f(x) by g(x). Given f(x) = -20x2 + 14x + 12 and g(x) = 5x - 6, we divide these to get:
f(x)/g(x) = (-20x2 + 14x + 12) / (5x - 6)
Dividing each term in f(x) by g(x):
f(x)/g(x) = -4x - 2
The domain of this function would be all real numbers except where g(x) = 0, since we cannot divide by zero. g(x) = 0 when x = 6/5. Thus, the domain is all real numbers except x = 6/5.
The correct answer to the student's question is therefore c. -4x - 2; all real numbers except x = 6/5.
A potter use 4/5 of a pound of clay to make a bowl.How many bowls can the potter make from 12 pounds.
12/1 / 4/5=
12/1 * 5/4 =
60/4 = 15
they can make 15 bowls
is 5.21 a rational number
Please, show me how to solve this. Find the limit as x approaches −8 for the function f(x)=5x+12.
Is this statemate true or false?
All parallelograms are special kinds of squares.
One custodian cleans a suite of offices in 3 hrs. When a second worker is asked to join the regular custodian, the job takes only 2 hours. How long does it take the second worker to do the same job alone?
Simplify Negative 3 over 2 ÷ 9 over 6.
Help.. :)
Which equation is not equivalent to the formula e = mc?
m equals e over c
c equals e over m
e = cm
m equals c over e
Please help THANKS!
Answer with Step-by-step explanation:
we are given a equation:
e=mc
We have to find which equation is not equivalent to the above formula.
e=mcDividing both sides by c,we get
m=e/c
i.e. m equals e over c
e=mcDividing both sides by m,we get
c=e/m
i.e. c equals e over m
e=mc=cmBut m is not equal to c over eHence, The equation which is not equivalent to e=mc is:
m equals c over e
Which number is a prime number? 21,22,23,24
Write as a single power: 4^20 + 4^20 + 4^20 + 4^20
The scores on an exam are normally distributed, with a mean of 74 and a standard deviation of 7. What percent of the scores are less than 81?
what is the answer ?
Write the equation in spherical coordinates. 3x + 2y + 3z = 1
A local carpet company has been hired to carpet a planetarium which is in the shape of a circle. If the radius of the planetarium is six yards, and the cost of the carpet is $14 per square yard, find the total cost to carpet the planetarium.
Zooey predicts the movie will be 90 minutes long. If the movie actually is 102 minutes long, what is Zooey's percent error? Round your answer to the nearest tenth of a percent.
A certain recipe requires 458 cups of flour and 659 cups of sugar. a) If 3/8 of the recipe is to be made, how much sugar is needed?
If the above ingredients are required for one batch, find the amount of flour needed for a double batch.
Rs = 8y + 4 , ST = 4y + 8 , and RT = 36 , find the value of y