08/29/20

Proof of the question
Assume that x ∈ Q and y ∈ R∖Q. For each of the following, either prove the statement is true, or provide a counterexample to prove the statement is false.(a) ∀x, y, x + y is rational.(b) ∀x, y, x... more
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08/28/20

A car rental agency has 18 compact cars and 12 intermediate size cars. If 4 of the cars are randomly selected for a safety check, what is the probability of getting two of each kind?
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08/28/20

given AF=PC, DN = FC prove DN = AP
given AF=PC, DN = FC prove DN = AP
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08/25/20

Probabilty Data Managment questions

1. A family of 7 are to take a photograph.a) How many arrangements are possible if the triplets (Jack, Bob, Don) are side by sideb) How many arrangements are possible if the Parents (Aex and Molly)... more
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08/24/20

Height of cloud cover math word problem

To measure the height of the cloud cover at an airport, a worker shines a spotlight upward at an angle 75° from the horizontal. An observer D = 530 m away measures the angle of elevation to the... more
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08/23/20

Find the limits of integration ly, uy, lx, ux, lz, uz

Find the limits of integration ly, uy, lx, ux, lz, uz (some of which will involve variable x,y,z) so that the triple integral from ly to uy, from lz to uz, from lx to ux, dx dz dy represents the... more
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08/22/20

Estimating a limit with smaller and smaller quantities.

Estimate the following limit by substituting smaller and smaller values of hlim h->0 ((7+h)^3 - 343)/h(Your answer should be accurate within 0.001.)I don't understand what I'm supposed to do... more
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08/22/20

Statistics Question

A parameter comes from where while a statistic comes from where?
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08/22/20

What’s the greatest value of k for which you should use four posts rather than three?
Quarantined in your apartment, you decide to entertain yourself by building a large pen for your pet hamster. To create the pen, you have several vertical posts, around which you will wrap a sheet... more
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08/22/20

Stuck on statistics homework! Thanks in advance.
The Monterey Bay Aquarium, founded in 1984, is situated on the beautiful coast of Monterey Bay in the historic Cannery Row district. In 1985, the aquarium began a survey program that involved... more
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08/21/20

∫0^1 8x^(2)e^(2x^(3))dx
Wasn't exactly sure how to put it but it was an integral with 1 at the top and 0 at the bottom. Starting with 8x^2 is what's inside the integral.
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08/21/20

Let f(x)= x-3/x, x>0. Show f is one to one and find the inverse for f.

Calculus 2 homework question again. Need help showing that it is one to one. Would appreciate showing the inverse but I think I can handle that. Thank you for an help.
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08/21/20

probability question
The probability of a fish weighing more than 20kg is 0.78. A ship catches 15 fish in the first hour.The probability that the first fish caught weighs more than 20kg given at least 8 out of the 15... more
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08/20/20

Probability and combinations

Aliens landed on Costco to buy some groceries and donate blood. The American president is sending an 8-member committee team of scientists to investigate this. His choices include 7 Biologists, 10... more
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08/20/20

Please need proper solution

Two dice are cast: 𝐸1is the event that a 6 appears on at least one die, 𝐸2 is the event that a 5 appears on exactly one die and 𝐸3 is the event that same number appears on both dice.i. Are 𝐸1 and... more
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08/18/20

Probability: What is the probability that at least 8 families adopt their puppy from a shelter?
30% of puppies come from rescue shelters. Ten random families were surveyed about where they recently adopted their puppy from.
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08/17/20

Find the mean and variance - covariance matrix of the random vector
Given random vector x = x1, x2, x3ε = 25 -2 4 -2 4 1 4 1 9find the mean and variance - covariance matrix of the random vectory = y1 y2y1 = x1 - 2x2 + 2x3y2 = 3x1 + x2 - x3
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08/16/20

Calculate the derivative using part 2 of the Fundamental Theorem of Calculus
d/dx ∫x1(3t2-t)28dt
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08/16/20

f(x,y)= xy(3-x-y) What are the absolute maximum points of the function in the R region? What are the absolute minimum points of the function in the R region?

R:x+y=4 between the line and the coordinate axes region.
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08/15/20

More help would be greatly appreciated. On average, how long are the pieces that contain the 6-inch mark?
A Manufacturing Company makes all sorts of mathematical tools: compasses, protractors, slide rules — you name it!Recently, there was an issue with the production of foot-long rulers. It seems that... more
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08/13/20

[calc 1] How do you simplify/get cos(arccsc(x)) to √(x^2-1)/x ?
Thank you in advance!!!!!
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08/13/20

Probability binomial distribution

According to census data, there are a total of 248.8 million households in India. Out of these households, approximately 17 million households in India have dogs as pets.Now, suppose that you... more
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08/12/20

I'm Having Trouble with this Coin Problem! Thanks!
A coin collector had a collection of 900 silver coins worth $205. There were five times as many quarters as half-dollars. If the rest of the coins were dimes, how many of each kind of coin did the... more
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08/12/20

Here is a cold one. Taylor Series
For f(x)=x^3/4. How large should n be so that for x∈[1,2], |f(x)-T_n(x)| < 0.001?i got n=15anyone else have similar answer?thanks! 
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08/12/20

Please HELP me ASAP
"Sixteen people are sitting around a circular table, each holding a fair coin. All sixteen people flip their coins and those who flip heads stand while those who flip tals remain seated. What is... more
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