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Mathematics 13 Online
OpenStudy (anonymous):

HELP needed from anyone willing NO STEPS NECESSARY JUST ANSWERS THANKS

OpenStudy (lgbasallote):

state your answers...

OpenStudy (lgbasallote):

\[\frac t3 + \frac t6 = 1\] \[\frac{6t + 3t}{18} = 1\] \[9t = 18\] \[t = 18/9\] \[t = 2\] you're right

OpenStudy (lgbasallote):

what else dont you know?

OpenStudy (anonymous):

thanks for verifying the word problem i wanted to make sure.

OpenStudy (lgbasallote):

welcome :)

OpenStudy (lgbasallote):

do you have an answer for those?

OpenStudy (anonymous):

no and i wanted to redo so it didnt look so confusing lol thats why i assigned numbers to them and took away all the lines I only need help with these last 7 which are listed above i really have no clue what they are.

OpenStudy (lgbasallote):

1) just substitute x = -3 3x^2 - 5x + 6 -> 3(-3)^2 - 5(-3) + 6

OpenStudy (lgbasallote):

2) \[\frac{4n^2 + 4n}{36n^2 + 16n}\] if you factor out the numerator and denominator you'll get to cancel something out

OpenStudy (lgbasallote):

you have to simplify it

OpenStudy (lgbasallote):

you should get a numerical answer

OpenStudy (lgbasallote):

3) use foil. remember that \[\sqrt a \times \sqrt b = \sqrt{a \times b}\]

OpenStudy (lgbasallote):

also remember that \[\sqrt a \times \sqrt a = a\]

OpenStudy (lgbasallote):

4) i think you wrote that wrong

OpenStudy (lgbasallote):

5) i dont get what your problem is...it did say use FOIL

OpenStudy (lgbasallote):

6) the formula for discriminant is \[b^2 -4ac\] just substitute your valuies

OpenStudy (lgbasallote):

okay....so any questions?

OpenStudy (anonymous):

okay i got number 2 right yippy

OpenStudy (lgbasallote):

nice

OpenStudy (lgbasallote):

what about number 1? still nothing?

OpenStudy (anonymous):

okay wait your going so quick give me a sec lol

OpenStudy (lgbasallote):

haha sure

OpenStudy (lgbasallote):

that's the question?

OpenStudy (lgbasallote):

so what's the problem in number 5?

OpenStudy (lgbasallote):

i meant why cant you solve it? what's the problem?

OpenStudy (anonymous):

the problem is i have been solving 66 other problems all since 12 noon and these i simply do not know the answer too if it's trouble to you then don't worry about it eventually someone will help.

OpenStudy (lgbasallote):

|dw:1343783035628:dw| you just multiply those right?

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