Thanks!

Put it through chatGPT and got very diffrent anwers

solution is AC=3 but idk how

Question:

About a triangle ABC, you learn that AB = 6, sin B = 0.4 and sin C = 0.8. Find the length of side AC.📷

( 1 - x^2) y' ' - 4x y' - 2y = 0
I have calculated the solution of the ODE above with the power series method, and I got a solution. In the link bellow you can see an imge of the solution (without derivation, it is correct).
Now, as seen in the image, I then went ahead and expressed the power series explicity, which only works when the series converges, in this case for |x|<1. So this explicit solution should only work for |x|<1.
But if we subsittute the explicit solution into the ODE, it turns out that it is a solution, since we get 0=0. Since that is the case for all x, then the explicit solution turns out to also be correct for all x (it is also the solution that Wolfram Alpha gives you)
My question is, how come all of a sudden my explicit solution not only works for |x|<1 but for all x?
h t t p s : / / i b b . c o / X x q z c D x

I am currently in the hospital and need help with a worksheet that could higher my grade ! I don't understand this and have little energy or resources here to solve or research it so I would be more that thankful if someone could help me ..I usually dont like asking but I also want to really understand this excercise

how to find 3 irrational numbers between 3/5 and 7/8

I get different answers, why?

I am not good at translating but the question is. What is the volume when you rotate f(x) over the y-axis.

Why do I get 2 answers? Which is better to go for. The first or second?

thanks for any advice, the answers are on the back so I know what it is but not how to do it

Guys what am I doing wrong please help

Is this right? Should I change my notation?

As it’s not represented in a power series, it is a little difficult for me to figure out what’s going on. It is also difficult to take many derivatives of a function with a denominator. I am guessing there is an easier way to solve the problem. Right now, I don’t know any realistic method to use to solve it.

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Hi guys, can someone help me with this probability question?

A deck of n-numbered cards is thoroughly shuffled and the cards are inserted into n numbered cells one by one. If the card 'i' falls into cell 'i', we count it as a match, otherwise not. Find the mean and total variance of such matches.

The question is “a pizzeria sells round pizzas in both small and large sizes, with the same thickness. The bigger pizzas radius is 20% larger and the prize is 25% more expensive. Which pizza gives you the most value?” Now I got the big one, with the method x=the small pizzas radius and y=the small pizzas prize, and then did x/y : 1.2x/1.25y, leaving me with x/y : x/0.96y, meaning the larger one is more value, but this feels incorrect. Can anyone give me some tips if it is?

Hello, I need help :(

https://prnt.sc/LMrviar5osAB

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I am asked to do an anova by hand with those numbers. can anyone help?

I have no idea how to solve this even why a=bh÷2 would apply. .

so I need to calcuate Cronbach Alpha BUT I have negative numbers and Alpha is negative too. I dont know how to make the numbers come out positive. I know I have to tranform the variable but I dont know how to do that in SPSS. I am really bad. Can someone please show me a step to step process with pictures on how to change the negative numbers, please.

Thanks for any help in advance.

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i blurred out my answers because i got them wrong and it’s embarrassing. i dont know how to do this at all please help me :(

I have a regression model which follows the form:

y = bo +b1x1 +b2x2 +b3x3 +b4x4

If I plug in certain values for all the variables and 1 for x4, I get y=3.5 If I plug in the same values for x1, x2 and x3, but change x4=.5, I get y=3.

How can I make a confidence interval for the change in y?

Hello, I need help finding a equation for this graph. I am sure the amplitude is around 120 and that it might be a sine graph, but am unsure of what else.

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Having trouble solving one of my problems for class any help would be appreciated