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Mathematics 11 Online
OpenStudy (volleyballlover55):

helppp!

OpenStudy (volleyballlover55):

OpenStudy (volleyballlover55):

@karim728

OpenStudy (sshayer):

what do you think?

OpenStudy (sshayer):

\[\sqrt{9}=3\] \[0.333...=\frac{ 1 }{ 3 }\]

OpenStudy (volleyballlover55):

A?

OpenStudy (sshayer):

correct

OpenStudy (karim728):

cant be A

OpenStudy (rayep12):

all rational number are repeating decimals, terminating decimals or whole numbers

OpenStudy (triciaal):

rational means it can be expressed as the ratio of 2 integers

OpenStudy (rayep12):

-2/5 is rational because it is teminating -0.4

OpenStudy (volleyballlover55):

but 7 is an irrational number...

OpenStudy (rayep12):

1.5 is also teminating

OpenStudy (sshayer):

according to me A is correct.

OpenStudy (rayep12):

0.33333... is repeating

OpenStudy (rayep12):

\[\sqrt{9}\] is a whole number which is 3

OpenStudy (karim728):

ts qrt(9) a rational number?

OpenStudy (karim728):

therefore option A and b are out

OpenStudy (sshayer):

\[\sqrt{9}=3=\frac{ 3 }{ 1 },ratio~of~two~integers.\]

OpenStudy (triciaal):

@karim728 why do you think A is out

OpenStudy (rayep12):

\[\sqrt{7}\] is not rational because the decimal is not repeating itself. Therefore A could be the only logical answer

OpenStudy (volleyballlover55):

yay! anyways next! :)

OpenStudy (volleyballlover55):

@sshayer ? :)

OpenStudy (sshayer):

think about last option.

OpenStudy (volleyballlover55):

D?

OpenStudy (volleyballlover55):

@sshayer

OpenStudy (sshayer):

|dw:1469847235000:dw| correct

OpenStudy (volleyballlover55):

yay! next :) Which of the following is equivalent to (ab)^4? a^ 4b a^4b^4 ab^4 4ab

OpenStudy (sshayer):

\[\left( xyz \right)^n=x^ny^nz^n\]

OpenStudy (volleyballlover55):

B?

OpenStudy (sshayer):

correct.

OpenStudy (volleyballlover55):

ok next!

OpenStudy (rayep12):

think about the space between the big triangle and the little triangle divide the number of squares between AC in the big triangle by he smaller one

OpenStudy (volleyballlover55):

C?

OpenStudy (rayep12):

no it would be a

OpenStudy (volleyballlover55):

ok...

OpenStudy (sshayer):

A is correct.

OpenStudy (volleyballlover55):

ok next!

OpenStudy (rayep12):

because the big triangle has 9 spaces in between AC and the small triangle has 3 spaces

OpenStudy (volleyballlover55):

i clicked b by accident.. :)

OpenStudy (sshayer):

from Ato C 9 squares from A' to C' 3 squares

OpenStudy (rayep12):

correcto volleyball

OpenStudy (rayep12):

B is correct

OpenStudy (volleyballlover55):

really! B is correct?

OpenStudy (rayep12):

yep

OpenStudy (sshayer):

i think A is correct

OpenStudy (rayep12):

you are adding the expression 4 times

OpenStudy (sshayer):

it is rotation by 180 degree

OpenStudy (rayep12):

?wait for which one

OpenStudy (sshayer):

for A

OpenStudy (volleyballlover55):

are we talking about this problem?

OpenStudy (rayep12):

thats what i am talking about

OpenStudy (sshayer):

here B is correct.

OpenStudy (volleyballlover55):

ohh ok perfect!!! thats what i wanted to know :)

OpenStudy (volleyballlover55):

ok next!

OpenStudy (volleyballlover55):

??

OpenStudy (evoker):

Hmm they look identical except for the primes

OpenStudy (volleyballlover55):

@rayep12 ?

OpenStudy (rayep12):

yeah?

OpenStudy (volleyballlover55):

what do you think the answer is.. ?

OpenStudy (rayep12):

A

OpenStudy (volleyballlover55):

ok..

OpenStudy (volleyballlover55):

next!

OpenStudy (rayep12):

bring it

OpenStudy (volleyballlover55):

OpenStudy (rayep12):

D

OpenStudy (rayep12):

next hurry

OpenStudy (volleyballlover55):

OpenStudy (rayep12):

C

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