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anonymous
 one year ago
FAN AND MEDAL TO WHOEVER CAN HELP ME
I need someone to work through this with me and explain it.
A right triangle has base (x  5) units and height (4x  10) units.
Part A: What is the square of the length of the hypotenuse of the triangle? Show your work. (4 points)
Part B: What is the area of the triangle? (3 points)
Part C: Using the solution obtained in Part B, explain the closure property of multiplication of polynomials. (3 points)
anonymous
 one year ago
FAN AND MEDAL TO WHOEVER CAN HELP ME I need someone to work through this with me and explain it. A right triangle has base (x  5) units and height (4x  10) units. Part A: What is the square of the length of the hypotenuse of the triangle? Show your work. (4 points) Part B: What is the area of the triangle? (3 points) Part C: Using the solution obtained in Part B, explain the closure property of multiplication of polynomials. (3 points)

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433809231852:dw A . you can get the hypotenuse using the pytagorean theorem: \[H^2=h^2+b^2\] B . the area can be found as: \[Area=\frac{b\times h}{2}\] start with those 2, using the expressions for b and h as a function of x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Not really. c is just (x5). So c^2 is (x5)^2 b is (4x10) so b^2 is (4x10)^2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So for the area I would use the squared expressions in the formula or the original?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I am in Algebra I so I haven't taken Geometry yet so I am kinda confused but my teacher gave me this question and I haven't learned how to do this..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0for the area you need to use the originals

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm going to get my sister to help me but thank you!!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok, just ask here if you need any more help...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Greg_D my sister wasn't very much help can you still help me?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what is the question

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@loveemmmma how far did you get with what @Greg_D suggested?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got the \[17x ^{2}90x+125\] = H^2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok. so for the area multiply the base and height, then multiply by ½. \[A=\frac{ 1 }{ 2 }(x5)(4x10)\] Do you know FOIL?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0OK. use it to multiply

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sorry, i was away from the computer, i see everything goes fine anyway :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm not sure but I think it might be \[12x ^{2}5x+25\] I'm really bad at math.. :/

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@peachpi @Greg_D is this right??^

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433812321296:dw Divide by 2 to get 2x²15x+25

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh okay I see what you did.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So that would be the area of the triangle right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes! that would be the area expressed as function of x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0amazing explanation @peachpi !!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay. But I still need help with part A...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@peachpi @Greg_D part A?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Part A: What is the square of the length of the hypotenuse of the triangle? Show your work. (4 points)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So what would I do with \[17x ^{2}90x+125\] that we came up with earlier?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sorry, im not at the computer all the time ... i took a look at the entire post.. that H^2 was the answer for part A.. is done!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh so that is the answer I just leave it like that. and its okay!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Alright then I think I can answer part C by myself. Thank you so much @Greg_D and @peachpi for your time, patience, and help it means a lot!!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i know you can! you made an excellent work with parts A and B keep it up!
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