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Makovka662 [10]
3 years ago
6

PreCalculus Question: If you don't know how to do college-level math, don't give me a useless "this is hard" or "look at your no

tes." I've looked through my notes and my textbook and genuinely need help. So if you've passed college trig or precalculus, please help.
Please look at the images attatched and see if you can help me. I've already found the speed of the merry-go-round to be 13.963 ft/s, and I know for sure the graph of the shadow's motion is sinusoidal. However, I'm not sure how to make that graph or where to go from here.

Mathematics
1 answer:
timofeeve [1]3 years ago
4 0
I believe I've found the graph you're looking for (see the attached picture).

If I'm wrong, please correct me.

:)


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If 120% is £48, what is 100%
azamat

Answer:

40

Step-by-step explanation:

If we go by 20's (20% of 100) 100% is 5. Since were dealing with 120% in our case we'll be dividing by 6 <u>to figure out what every 20% is</u>. All we need to do it's divide 48 by 6 and we get the answer 8. So in our case every 20% is equal to 8. now to solve for 100% all we need to do is subtract 8 (20%) from 120% (48) and we find 100% is 40. We could also do 8 x 5. (<em>remember every 1 is 20% in our case</em>) which is also 40. Therefore, your answer is 40.

If you don't quite understand what I'm talking about please let me know and I'll elaborate.. thanks! have a nice day and good luck with your quiz!

6 0
3 years ago
You decide to put the Gamer table on sale for 20% off. You normally charge $210 for this table. What is the amount of the discou
kvasek [131]
First, you would multiply $210 by 20%
This is done by converting 20% to a decimal, .2

So, 210 • .2 = 42

Then to find the sale price, you would subtract that 42 that you just got from 210,

and you get $168 as the final sale price.
5 0
3 years ago
You want to put a 5 inch thick layer of topsoil for a new 23 ft by 18 ft garden. the dirt store sells by the cubic yards. how ma
lianna [129]

5 inches = 5/12 = 0.4166 feet

23 x 18 x 0.4166 = 172.5 cubic feet

1 cubic foot = 0.037037 cubic yards

172.5 x 0.037037 = 6.39 round up to 6.5 cubic yards

5 0
3 years ago
Read 2 more answers
What fraction of a year are 31 days ?
Alborosie

9514 1404 393

Answer:

  • non-leap years: 31/365
  • leap years: 31/366

Step-by-step explanation:

As a fraction of the number of days in a calendar year, it will depend on whether the year is a leap year.

non-leap years have 365 days, so 31 days is 31/365 years.

leap years have 366 days, so 31 days is 31/366 years.

_____

If you're asking for the purpose of computing interest, you need to be aware that "ordinary interest" counts 360 days in a year. 31 days would be 31/360 years. "Exact interest" counts 365 days in a year, so 31 days would be 31/365 years.

In astronomy, the definitions of "day" and "year" may vary, depending on the frame of reference and what direction in space marks the boundary of the period. The precise fraction will depend on how you define these terms and where the clock is located.

5 0
2 years ago
Given sin x=0.3 , what is cos x ?
blsea [12.9K]
Cos x = sqrt( 100 - 9) / 10 
<span>= 0.9539392014</span><span>sin x = 0.3 = 3/10
</span>
7 0
3 years ago
Read 2 more answers
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