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andrey2020 [161]
3 years ago
14

$3 is what percent of $10?

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
4 0
30%, have an nice day. Brainliest please?
Korolek [52]3 years ago
3 0

Answer:

30%

Step-by-step explanation:

you can also check if I'm correct by doing 3 divided by 3 to get 10% which is 1, and then multiplying it by 10 to get 100% and if 100% is 10 then my answer is correct! and it is 10 so it's correct lol.

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1. Write out the law of cosines and find the hypotenuse of triangle with 2 sides lengths equal to three and the included angle m
LUCKY_DIMON [66]

Answer:

1.) \sqrt{13.341}  ≈ 3.652

2.) I would say something about how the A in front of cos in the equation would change to 90, rather than stay 75 (in the equation for the step by step), but it would be easier to just use the Pythagorean theorem.

Step-by-step explanation:

I think we may have the same class so hopefully this helps:

1.) a^2 = b^2 + c^2 - 2bccosA --> law of cosines formula.

   a^2 = 3^2 + 3^2 - 2(3)(3)cos(75) --> plugged in numbers; when you draw the triangle, the included angle would be A, and the opposite side would be a. B and b, and C and c are opposite each other. In this case, a is the hypotenuse.

   a^2 = 18 - 18cos75 --> in between steps.

   a^2 = 13.341 --> more simplifying.

   a(hypotenuse) = \sqrt{13.341} or 3.652 --> answer

2.) This one is just an explanation: The 75 in the equation is the given angle, which is a. If this changes, it would just change in the equation too. And obviously, if it's 90 degrees, you can just use Pythagorean theorem a^2+b^2=c^2.

Good luck! :)

   

6 0
3 years ago
3. John and Nelly are cleaning their house. Nelly takes 3 hours longer than John if she cleans the house alone. If they can do t
swat32

Answer:

1 hour?

Step-by-step explanation:

8 0
2 years ago
The ten students in a club are lined up in a row for a group photograph. How many different arrangements are possible if the clu
larisa [96]

It's 10!/3! so its 604, 800.

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3 years ago
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B,E,F sorry if I’m wrong
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1. Subtract 6x from both sides so now you have -2y = -6x + 18

2. Divide everything by -2, then you would have y = 3x - 9

3. The equation is now in slope intercept form so the answer is 3.
8 0
3 years ago
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