Mathematics
83 Online

OpenStudy (anonymous):
Work out the value of each of this expressions, when p=2, q=-3, r=5:
p^4+2r^2/pq

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (mimi_x3):
(2)^4 + 2(5)^2/(2)(-3)
= -11

OpenStudy (anonymous):
how did you get minus eleven, would you mind giving me a quick step by step run through?

OpenStudy (mimi_x3):
typed it in the calculator xD

OpenStudy (anonymous):
LOOOOOOOOOOL

OpenStudy (anonymous):
that cannot be right 2*5^2/-6 is not an integer

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (anonymous):
2^4=16
5^2=25
so it is
16+2*25/-6=16-25/3=48/3-25/3=23/3

OpenStudy (mimi_x3):
oh woops my bad i got it wrong xD

OpenStudy (anonymous):
too complicated :-)

OpenStudy (anonymous):
Mimi you could check what I posted, please

OpenStudy (mimi_x3):
LOL, yeah i thought it was easy , it looked easy

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (mimi_x3):
okay i will check, Andras (:

OpenStudy (anonymous):
but the answer is - 11

OpenStudy (anonymous):
than u used the brackets incorrectly

OpenStudy (anonymous):
(p^4+2r^2)/pq=-11

OpenStudy (mimi_x3):
see~ i was right, its not that complicated

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (anonymous):
andras your method has baffled me

OpenStudy (anonymous):
andras your method has baffled me

OpenStudy (mimi_x3):
chrissy you still need belp ?

OpenStudy (anonymous):
People not use pen and paper any more...:-)

OpenStudy (mimi_x3):
lols , why ? xD

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (anonymous):
yes i do

OpenStudy (mimi_x3):
lols, what do you need help with ?

OpenStudy (anonymous):
2^4=16
2(5)^2= 50????

OpenStudy (mimi_x3):
10^2 = 100
sorry for ignoring you before

OpenStudy (anonymous):
so 2(5)^2 is 100

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (anonymous):
wat?

OpenStudy (mimi_x3):
yup :D
am i wrong, estudier ?

OpenStudy (anonymous):
Exponents first...

OpenStudy (anonymous):
so it is 50 then?

OpenStudy (anonymous):
Yes

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (mimi_x3):
oh yeah my bad sorry

OpenStudy (anonymous):
IT's -11 because p^4+2r^2/pq = 16+50/-6 = -11

OpenStudy (anonymous):
yes

OpenStudy (anonymous):
Yes, Mimi had it right since the beginning (but didn't know why)

OpenStudy (anonymous):
thank you for your patience guys.

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (mimi_x3):
lols, because i didn't read the question again thats why

OpenStudy (anonymous):
no problem, but wouldnt it be better if u tried to do ur homework alone
???

OpenStudy (mimi_x3):
lols , she cant do it thats why she's asking for herlp xD

OpenStudy (anonymous):
I think the questions are designed to test order of operations...

OpenStudy (anonymous):
She wont do it, i am not trying to be mean so please excuse me if i offended you, but we are limited only by our imagination

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (anonymous):
BODMAS, PEDMAS, whatever it's called...

OpenStudy (mimi_x3):
lols , you dont need BODMAS in that question xD

OpenStudy (anonymous):
2(5)^2?....

OpenStudy (mimi_x3):
lols , is BODMAS required ? my bad

OpenStudy (anonymous):
If u just starting, maybe it is not so obvious....

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (mimi_x3):
lols , i haven't heard of that term for a while so it wasnt obvious xD

OpenStudy (anonymous):
lol

OpenStudy (anonymous):
u happy now, chrissy?

OpenStudy (anonymous):
very