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anonymous
 5 years ago
find b given that:
A(4,10) and B(b,7) are 5 units apart.
How can i solve it ?
anonymous
 5 years ago
find b given that: A(4,10) and B(b,7) are 5 units apart. How can i solve it ?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0distance formula\[5=\sqrt(4b)^2+(107)^2\] that sqrt should be over the whole right side

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0b=8 or b=0 there are 2 possibilities.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So it would be 5 = 4b + 9?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0could you show how you got your results?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0please cause i have 4 problems like this

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the (4b) is still square and the right side should still be under the sqrt

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[5=\sqrt((4b)^2+(107)^2)\] \[25=(4b)^2+9\] subtract 9\[16=(4b)^2\] take the squareroot, and remember that when taking the squareroot you have to use the negative and positive\[\pm4=4b\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can you complete from there? or want me to finish?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sorry! im just a better learning seeing it out solved

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so you have\[4=4b \] subtract 4 and multiply by 1 to get rid of the negative \[0=b\] and you also have\[4=4b\] subtract 4\[8=b\] and multiply by 1 to get rid of the negative \[8=b\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I don't mind. Everyone learns differently and I'm happy to help.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thank you but i have one more

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0A(b,b) is sqrt(18) units from its origin.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the origin is at (0,0) so assuming the b is the same you have\[\sqrt18=\sqrt{(b0)^2+(b0)^2}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so\[\sqrt{18}=\sqrt{b^2+b^2}\] \[\sqrt{18}=\sqrt{2b^2}\]square both sides \[18=2b^2\]divide by 2 \[9=b^2\]take the square \[\pm3=b\]root
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