If x+y=5 and x^2+y^2=1, find xy. Note: x^2 means "x raised to the second power" O 12 18 O 24

Q: answer was 4.19      10^10. Which I am not under

A: N were large The weight of the configuration {n0,n1,n2,...} w = N!n0!n1!n2!...

Q: What is it called when we combine terms that have the same variable and exponen

A: to solve the given problem

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A:

Q: Multiply and simplify completely, including the elimination of all negative exponents: ( 5 x ^ 4 /4…

A: =5x44y55·44 y853 x-7=55 (x4)545 (y5)5·44 y853 x-7=55 x2045 y25·44 y853 x-7=53 52 x2044 4 y25·44 y853…

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Q: 7. Simplify the following expression 2x 10 x-1 + 2 x + 1

A:

Q: First, rewrite  4/21 and 1/6 so that they have a common denominator. Then, use to order  4/21 and…

A: Given numbers  421 and 16

Q: why must negative exponents be changed into positive exponents

A:

Q: 5. Simplify: -2 b) 64-1/2

A: We have to simplify the following.. As per guideline we have to do one question