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Bond [772]
3 years ago
6

If x =root 7+root5 and y=root7-root5 find xy​

Mathematics
2 answers:
kondor19780726 [428]3 years ago
6 0

final answer will be 2 because √a×√a= a

diamong [38]3 years ago
4 0

Step-by-step explanation:

x=√7+√5, y=√7-√5

therefore, xy = (√7+√5)(√7-√5) = 7-5 = 2.

Hope this helps you.

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creativ13 [48]
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3 0
3 years ago
Read 2 more answers
Niki wants to buy a dog bed the cost $87. She earns $6 per week for doing chores. How many weeks will Niki have to do her chores
Viktor [21]

Answer:

The answer to your question is 14.5 weeks

Step-by-step explanation:

Data

Total cost = C = $87

money earned = m = $6

Number of weeks to have the money = w = ?

Process

1.- Write an equation that represents the situation

            Weeks = Total cost / Money earned

             w = C/m

2.- Substitute the values

             w = 87 / 6

3.- Result

             w = 14.5

4.- Conclusion

Niki will last 14.5 weeks to have enough money to buy a dog bed.

7 0
3 years ago
I have 12 coins x of them are R5 coins and the rest are R1 coins. An expression in the in terms of x for the number of R1 coins
Marrrta [24]

Answer:

ans= 12-x=r1 coin...

Step-by-step explanation:

hope u can do..

7 0
3 years ago
The collection of all input values is the ___ of the function ?
hichkok12 [17]

Answer:

Domain

Step-by-step explanation:

Input Values Form the Domain of the Function

Mathematicians call the set of all input values for a function its domain.

3 0
2 years ago
A gym membership is $25 a month plus $15 fee. How many months/weeks can $200 cover?
Eddi Din [679]
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I am pretty positive this is correct. Sorry if I am wrong. Good luck!
5 0
3 years ago
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