Ask your own question, for FREE!
Mathematics 16 Online
OpenStudy (anonymous):

do i have to set up a chart before i can solve this i know its a floor funtion

OpenStudy (anonymous):

OpenStudy (anonymous):

i think it is d

hartnn (hartnn):

yes, it is d

OpenStudy (anonymous):

the other one i'm not sure about is d on this problem i subed in -1 and im just sot sure what is the correct sign

OpenStudy (anonymous):

thank you i know im on track for my graphs

hartnn (hartnn):

no wait, sorry :P

OpenStudy (anonymous):

lool

OpenStudy (anonymous):

where did i go wrong?

hartnn (hartnn):

when x=-1, there is closed (dark) circle at 2 so, it woul be C also 'd' does NOT give answer for 'x' values between 2 and -1.,so..

OpenStudy (anonymous):

wait what about -1 < -1?

hartnn (hartnn):

what ? where's -1<-1 ??

OpenStudy (anonymous):

in c : 2 if x , -1 so if x = -1 then what?

OpenStudy (anonymous):

* 2 if x < -1

hartnn (hartnn):

2x if x>=-1 so, x=-1 will fall in this case.

OpenStudy (anonymous):

oh right it only has to fit into one of them, i forgot that, thank you :)

OpenStudy (anonymous):

i have 3 more problems that i need to review on (i'm doing test corrections) im dealing with square roots

hartnn (hartnn):

ok.

OpenStudy (anonymous):

hartnn (hartnn):

10x-5 = -4 find x from here, that would be your answer to 1st

OpenStudy (anonymous):

10x - 5 = - 4 10x = -4 + 5 10x = 1 x = 1 / 10 x = 0.1?

hartnn (hartnn):

correct :)

OpenStudy (anonymous):

:)

hartnn (hartnn):

know how to get domain ?

OpenStudy (anonymous):

would the domain be -2 (<=) x (<=) 7

hartnn (hartnn):

just that x will not =-2 otherwise denom =0

hartnn (hartnn):

-2 (<) x (<=) 7

OpenStudy (anonymous):

ah ok, so i have 2 more i just say we did one like 14 so im going to work that right quick

OpenStudy (anonymous):

wait, would it be option a, i know that the domain i saw in my lesson, im not sure if in the lesson it was 1/2 and not 1/x

hartnn (hartnn):

yes, option a is -2 (<) x (<=) 7 right ? so its a

hartnn (hartnn):

oh u mean for 14th ?

hartnn (hartnn):

domain : denominator NOT=0 \(|x|-2 \ne 0\) for which values of x?

OpenStudy (anonymous):

no im on problem 14 let me repost it

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

im looking at option d as being the answer |x|−2≠0

OpenStudy (anonymous):

i ment c

hartnn (hartnn):

no, you know what |x| mean ? absolute value?

OpenStudy (anonymous):

no negatives

hartnn (hartnn):

oh yeah, C is correct :)

OpenStudy (anonymous):

lol, i looked again and didnt see the - sign lol

OpenStudy (anonymous):

ok man, thank you, and do you know how to invite someone to this website?

OpenStudy (anonymous):

my friend catches "hell" with english

hartnn (hartnn):

yes, see there's an Invite option besides Home, on upper right

OpenStudy (anonymous):

yes, i do see it

OpenStudy (anonymous):

thank you :)

hartnn (hartnn):

welcome ^_^

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!