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Firlakuza [10]
2 years ago
8

There are 20 runners in a race for 1st, 2nd, 3rd, and 4th place. How many different arrangements can be made?​

Mathematics
1 answer:
Setler [38]2 years ago
3 0

Answer: 160

Step-by-step explanation:

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Can someone help me with this please?
Daniel [21]

Answer:

Classify by angles: <u>Equiangular</u>

Classify by sides: <u>Equilateral</u>

Step-by-step explanation:

An equiangular triangle has angles that all measure 60 degrees. An equilateral triangle is a triangle that has sides will all of the same lengths. This triangle meets both of these requirements.

Hope it helps!

5 0
3 years ago
A bacteria culture begins with 15 bacteria which double in amount at the end of every hour. How many bacteria are grown during t
elixir [45]
We use P = i•e^rt for exponential population growth, where P = end population, i = initial population, r = rate, and t = time
P = 2•i = 2•15 = 30, so 30 = 15 [e^(r•1)],
or 30/15 = 2 = e^(r)
ln 2 = ln (e^r)
.693 = r•(ln e), ln e = 1, so r = .693
Now that we have our doubling rate of .693, we can use that r and our t as the 12th hour is t=11, because there are 11 more hours at the end of that first hour
So our initial population is again 15, and P = i•e^rt
P = 15•e^(.693×11) = 15•e^(7.624)
P = 15•2046.94 = 30,704
4 0
3 years ago
Read 2 more answers
Simplify problem if possible
sergeinik [125]
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3 0
3 years ago
Please help. I just am I bit confused..
8_murik_8 [283]

Answer:

add tjem all up and fid the outnumber one

Step-by-step explanation:

8 0
3 years ago
A fire burned a square - shaped forest 14mi on a side the area is ?
Tpy6a [65]
A square has all sides of the same length. This means that the length and width are both 14 miles. The area of a square is Length times width, or 14 times 14. This comes out to be 196 miles squared
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3 years ago
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