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Coffee Break: Dirty-to-Clean Chain]]>

I only manage to get one of the answer correct which is 32°30' but unable to get 191°6' as another answer. Can someone teach me how to get 191°6'? Thanks.]]>

sin(5α+θ)=cos(θ−3α)

We are to find the least

The way I did is as,

sin5αcosθ+cos5αsinθ=cosθcos3α+sinθsin3α

Now for this to be true

sin5α=cos3αsin5α=cos3α

and

cos5α=sin3αcos5α=sin3α

How do I find the value of α that satisfies the above criteria?]]>

The question is that when positive integer n is divided by 5, the remainder is 1. When n is divided by 7, the remainder is 3. What is the smallest positive integer k such that k+n is a multiple of 35? The answer is 4.

I get that n= 7q +3 and it also equals n = 5p +1. I also know that you can make it to where 5p= 7q +2, but this is where I am really stuck as where do I go from there. I...

GMAT question 65]]>

I let "x" be number of eggs and my equation is: (x - 4) (6 + x/12) = 40. But it's not solving. I'm having trouble understanding how to translate "cents per dozen" as an equation i think. Help please!?]]>

Working:

Thanks a lot for any assistance]]>

I have attached my work. Here is my question. I have calculated the area of the region between the circles. Can I some how use this area to find the triangle that lies inside the shadded area?]]>

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I am confused how I would set up this equation up or what formula to use. Do I use the a^2+b^2=c^2 method ?]]>

Firstly, thanks very much for providing this forum. I'm grateful for any help & advice you can offer.

I'm reading a book called

Taking apart a sum]]>

I drew a diagram it I have two variables in the resulting equation so I am not sure where to go with it. This problem is for a practice test but the unit never covers a problem like this at all.

[ATTACH type="full"...

The height of a building.]]>

For example, I know that I had 3,000 events at a given minute. The average number of events per second would be 50, but that's not what I am after as there could have been seconds with 5 events and seconds with 90 events. Is it possible to determine the peak number of events/sec throughout...

From events/min to max_events/sec]]>

Link for online combinations calculator?]]>

but what's confusing me so if it's unitless so we can't say anything on that number it's abstract ! here I'm fine with!

but why for example if I want A in terms of B then I say A/B which it's number "unitless" and it's representing how much I've from B that's equal to A, so in other words the number (A/B) is not unitless .... it's representing...

algebra]]>

A cryptic hint \(\;\;\) He introduced royal initials after malting first beer:

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I'm in need to solve the following set:

a/x

d/x

The coëfficiënts a,b,c,d,e,f are real and I'm only intrested in real solutions for x,y,z.

How can I find the combination of x y and z such that both of the equations are simultaneously satisfied given the coëfficiënts?]]>

So I know the equation is L=4t^2

L= leap

L= 3.5 ft

So, would it be 3.5=4t^2 ?

Would I divided 4 by each side first...

World Problem]]>

How do I plug the equation " arcsin×11/12×sin(73) " into a calculator so that it equals 61 degrees?]]>