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Mathematics 25 Online
OpenStudy (anonymous):

help? http://prntscr.com/99d60l http://prntscr.com/99d64s http://prntscr.com/99d66v

Nnesha (nnesha):

do you know the Pythagorean theorem ?

OpenStudy (anonymous):

yes but for the first question i wasnt sure if i were to subtract the values or not

Nnesha (nnesha):

well show me how did yo substitute a b c values

OpenStudy (anonymous):

7-3=w i got 4 7+3=w i got 10

Nnesha (nnesha):

no i mean a^2+b^2=c^2 is the equation what did you substitute for a and b

Nnesha (nnesha):

and for c

OpenStudy (anonymous):

i got \[\sqrt{58}\]

Nnesha (nnesha):

a^2+b^2=c^2 Pythagorean theorem where c is the longest side hypotenuse how did you get sqrt{58} what did you plugin for a , b and c ? show ur work

OpenStudy (anonymous):

i did 7^2+3^2=w^2

Nnesha (nnesha):

well the longest side is hypotenuse which is c in the equation |dw:1449038192358:dw|

Nnesha (nnesha):

|dw:1449038200240:dw|

OpenStudy (anonymous):

i did w^2+3^2=7^2 and got C as my answer

Nnesha (nnesha):

yes w^2+3^2=7^2 is correct

OpenStudy (anonymous):

ok

Nnesha (nnesha):

how did you cancel out the square from w ?

OpenStudy (anonymous):

i think the answer to no2 might be A

Nnesha (nnesha):

why its A ?

Nnesha (nnesha):

is that a guess or any reason ??

OpenStudy (anonymous):

it was a guess, but i have my options set on A and B

Nnesha (nnesha):

well if you know how to solve this for w w^2+3^2=7^2 then u will find the answer for 2nd question bec that is the opposite

OpenStudy (anonymous):

so is A incorrect?

Nnesha (nnesha):

well you didn't answer my question how would you solve for w w^2=7^2-3^2 w^2=49-9

Nnesha (nnesha):

to cancel out square from w what would you do ?

Nnesha (nnesha):

to cancel out the square you should take square root both sides same the opposite to cancel out the square root you should take square both sides

Nnesha (nnesha):

guessing is not a option at al

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