Need help please! (1 Viewer)

[ObninbO]

could you please help me with the atached questions. plase show working out if possible.

thanks

 

[bringonthenerds]

dude question one is so easy.
you just substitute 3 into x1 and 7 into x2, 8 into y1 and 2 into y2.
then you do the calculations!
tah-dah.

 

[ObninbO]

yeh thanks, i wasnt sure which ones you subsitute in, like which way around you put them in. Thanks

 

[bringonthenerds]

for question 2 it's the same.
you just substitute.
so you write [root (2--5) square the answer to this and ADD that answer to (-4-3) squared.
so 2--5 squared is 49 ADD -4-3 squared, which is 49.
49 + 49 = 98
then root 98 to get your answer.