D. Solve each system by the substitution method. Check each Solution. y = 3x 1) 2) 3) 2x + y = 15 3x - 2y = 11 2x +y = 3 2x - y = 14 3x - 7y = 10

Q: is this fully simlified ?

A: Find the derivative of  f(x)=82x2+7

Q: i would like to know how to calculate this without a calculator or big numbers

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Q: Which one is greater 99100 or 10099 ? No calculators please! Must justify your answer.

A: To find  Which one is greater 99^100 or 100^99.

Q: Anyway you could type it out? I am having trouble reading some of the things you wrote

A: From given data we have : n=300 P=0.20 x=57 Sample proportion  p^=xn=57300=0.19

Q: excel

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Q: Tools / Question 7 Use the diagram to solve forz +45 145 C. 90 45

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Q: I don't understand where the first square root of -3 went. I understand all of the rest of the…

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Q: This answer has no numbers in it and it needs to be reformatted so I can actually see the answers

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Q: Could you explain how to find the formulas ?

A: Apply integration by parts:

Q: It seems maybe theres a missing step, I am still confused. Should I do some algebra and simplify it?

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Q: Wasn't solved in a comma seperated form. Please correct

A: The given equation of curve

Q: not using excel can this problem be solved?

A: The mean is $31,000, standard deviation is $3000.

Q: COuld you please write this code in Mathematica?

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Q: How do you do these calculations without using excel?

A: Given data…