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maria [59]
3 years ago
10

PLEASE HELP ASAP!!!!!!!

Mathematics
1 answer:
natita [175]3 years ago
8 0

Answer:

142

Step-by-step explanation:

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A standard marathon is about 26.2 miles.
Ivanshal [37]

Answer:138,336

Step-by-step explanation:Because one mile=5280 so that takes out a and d but then just multiply 26.2 and 5280 equals 138,336 hope this helps

3 0
2 years ago
Explain why the square root of a number is defined to be equal to that number to the 1/2 power.
maria [59]
This is essentially a rule in the unit of radicals, where n✔️X^m = X^m/n. If the value of m is equal to n, as in 2✔️3^2 it would simply be 3^2/2 which is nothing but 3^1 = 3. Basically, the m value can be greater than n and or less than n, but if it is equal the m and n values cancel out.
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3 years ago
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Step-by-step explanation:

5 0
3 years ago
20 POINTS!!!!
koban [17]

Answer:

The correct answer is d. (40, 60)

Step-by-step explanation:

To start using the linear combination method, you need a variable that will cancel out. To get this, we will multiply the second equation by -20 and then add together.

x + y = 100

-1.4x - y = -116

-----------------

-0.4x = -16

x = 40

Now that we have the value of x, we plug into one of the original equations to find y.

x + y = 100

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3 0
3 years ago
A 250<br> B 1000<br> C 1750<br> D 5000
PSYCHO15rus [73]

Answer: b

Step-by-step explanation: divide and round

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