08/11/20

From 10 people, how many ways can we form a committee of seven people consisting of a president, two (equivalent) vice presidents, and four (equivalent) regular members?
From 10 people, how many ways can we form a committee of seven people consisting of a president, two (equivalent) vice presidents, and four (equivalent) regular members?
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08/10/20

Find all local extreme values of f ( x ) = (2 /3) x ^3 + 7 x^ 2 + 20 x − 100 .
I find as the first local extreme value from left to right is the maximum at (-2, -352/3) which is wrong. I found the derivative of the function to be 2x^2+14x+20 and set it = to 0 and solve to get... more
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08/10/20

The equation of the hyperbola that has a center at (10,7) a focus at (5,7) and vertex at (13,7)
(x-C)^2/A^2 - (y-D)^2/B^2 =1(x-C)^2/A^2 is one fraction another (y-D)^2/B^2 A= 9B= 16C= 10D= 7This is what i got A and B seem wrong could anyonesteer me in right direction on wat i ddi wrong
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08/09/20

Find the limit of a function using the squeeze theorem.
Find lim x→+∞ (x^2)/(2^[x]) using the squeeze theorem.Note: [x] denotes the flooring of x.
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08/09/20

Suppose x has a distribution with a mean of 60...
Suppose x has a distribution with a mean of 60 and a standard deviation of 27. Random sample of size n=36 are drawn. (a) Describe X distribution.compute the mean and standard... more
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08/09/20

Use the sample data to construct a 95​% confidence interval estimate of σ​, the standard deviation of the duration times of game play
Twelve different video games showing substance use were observed and the duration of times of game play​ (in seconds) are listed below. The design of the study justifies the assumption that the... more
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08/08/20

help me please okay
Enter a piecewise function for the situation. Then complete the table and select the correct graph. A local golf course charges members $20 an hour for the first two hours, $25 an hour for the next... more
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08/08/20

y/3 = (y+8)/(y+5)
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08/08/20

Let f(x) = (x+3) / (x−1) . Find f^-1 (x).
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08/08/20

Precalculus one
At the beginning of an experiment, a scientist has 312 grams of radioactive goo. After 60 minutes, her sample has decayed to 9.75 grams. What is the half-life of the goo in minutes?
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08/08/20

Differentials to estimate value
Use differentials to estimate the value of 4sqrt16.2. Compare the answer to the exact value of 4sqrt16.2. Round your answers to six decimal places, if required. estimate =  ____________   exact... more
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08/07/20

Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. x = y^8 , y = 1 , and the y-axis about x = 5
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08/07/20

Transition Matrix/Markov Process
Let P be a 2x2 transition matrix for a markov processrow 1 [.4 .7]row 2 [.6 .3]If the current distribution is given by a 2x1 matrix,row 1[.8]row 2[.2]what will the distribution be after one time... more
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08/07/20

Transition Matrix/Markov Process
Let P be a 3x3 transition matrix for a markov process.P = Row 1 [.7 .3 .4], Row 2 [.1 .6 .1] Row 3 [.2 .1 .5]One can show that p4 = a 3x3 matrix with row 1 [.552 .5167 .5439]row 2 [.1875 .25... more
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08/07/20

Please help with this question!
Use the method of Power Series to solve the following nonlinear ODE:Please only use Power series method.
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08/07/20

Generate a continuous and differentiable function f(x) with the following properties:
f(x) is decreasing at x= -6f(x) has a local minimum at x= -3f(x) has a local maximum at x= 3
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08/07/20

Find a good numerical approximation to F(1) for the function with the properties that F'(x) = e^-((x)^2)/5 and F(0) = 4.
Find a good numerical approximation to F(1) for the function with the properties that F'(x) = e-((x)^2)/5 and F(0) = 4.(The answer is not 5.)
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08/07/20

Maximum Likelihood Estimate

How to derive the likelihood function for binomial distribution for parameter estimation?
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08/07/20

Please clerify this question!
Given the following 1st order linear homogeneous system: its coefficient matrix    has two repeated real eigenvalues      but only one independent eigenvector    I got an answer below but I am not... more
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08/06/20

How many km did Yochanan cover by walking and how many did he cover by travelling on the bus?
Yochanan walked from home to the bus stop at an average speed of 5 km / h. He immediately got on his school bus and traveled at an average speed of 60 km / h until he got to school. The total... more
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08/06/20

Systems of Equations & Solutions
For each of the following systems of equations, state if the system has a unique solution, an infinite number of solutions, or is inconsistent (no solutions). If the system has a unique solution,... more
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08/06/20

The region bounded by the given curves is rotated about the specified axis. Find the volume of the resulting solid by any method
x = 1 − y4    x = 0,     about the line x = 9
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08/05/20

y = 5 cos(3x), y = 5 sin(6x), x = 0, x = π/6
y = 5 cos(3x),    y = 5 sin(6x),    x = 0,    x = π/6Find the area:_______
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08/04/20

Statistic homework help
A company has hired 12 new employees, and must assign 8 to the day shift and 4to the night shift. Assume that they hired 7 men and 5 women.(a) Find the number of ways that this can be done.(b) Find... more
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08/04/20

Show the following number 𝑁 is either possibly prime or definitely composite using the two parts of the Fermat Primality test.
𝑁 = 19
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