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Advocard [28]
3 years ago
15

PLEASEEEE HELPPP! This is urgant

Mathematics
1 answer:
Goryan [66]3 years ago
5 0

Answer:

A

Step-by-step explanation:

let me know if you want a more detailed explanation but since it's urgent here's the answer.

---------------pt2

well the question wants us to create an equation to show Sabra's monthly spending in her two clubs. so for the first club it says she pays 8.50 flat (meaning its a downpayment so she pays once and that's it) and then she pays 6.25 monthly meaning she must pay this membership fee every month. and so here what you do to create the equation is put down the flat 8.50 first and then you have to add on the amount she pays per monthly which is 6.25 but we don't know how many months she is going to go to this club for so we have to multiply the 6.25 fee by x (just a variable commonly used for an unknown value) so therefore for our first club we have the equation 8.50+6.25x

and if we do the same process for the second club we will get

12+3.75x

and we multiply the monthly fee by the x (for the months) because she must pay this fee every single month so we multiply. and that is how you get your answer!

hope this helps, have a great day!

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3 years ago
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defon

Answer:

c

Step-by-step explanation:

Using Pascal's triangle, the expansion, although EXTREMELY lengthy, will help you find the 7th term.  I am going to type out the expansion only up til the 7th term (although there are actually 10 terms because we are raised to the power of 9).  If you would like to learn how to use Pascal's Triangle for binomial expansion, you will need to visit a good website that explains it because it's just too difficult to do it via this website.

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That last term is the 7th term.  You find out its value by multiplying all the numbers together and adding on the c^3d^6.  Again those come from Pascal's triangle, and it's one of the coolest math things ever.  I encourage you to take the time to explore how it works.

5 0
3 years ago
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frutty [35]
Let's take another look at the question:
If 4 is subtracted from twice a number the result is 10 less than the number.
let x = the number
"if 4 is subtracted from" is the same as
-4
"from twice a number" is the same as
2x
so put them together,
2x-4
"the result is"
=
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