Find the value of the expression below for r=4 and t=2.... t^3-r+20 divided by r
9***
72
6
40
Ok, Reiny you said my answer9 was originally wrong, however when I looked at the work you did and you put in parenthesis()....my question is why, because the original expression didn't have any...
7 answers
P.S. I'm not saying Reiny is wrong I'm asking so in the future I can know why.
(2^3 - 4 + 20)/2 = (8-4+20)/2 = 24/2 = 12
2^3 - 4 + 20/2 = 8-4+10 = 6
The parens make a big difference.
Just FMI, how did you get 9?
2^3 - 4 + 20/2 = 8-4+10 = 6
The parens make a big difference.
Just FMI, how did you get 9?
Ok, well first of all.. I turned it in and got a 50% and my answers were correct... second of all I got 9 by doing exactly as told I plugged in the numbers so.. 2^3-4+20/4 then did then did the exponent and then got 8-4+20/4 put that in to a calculator and got 9.... maybe I should have listened to the calc. :(
Now my grades a C...
Ouch! you are correct. I divided by t, not r.
Not only should you have listened to the calc, you should have noticed my typo. We try to help, but we're not always perfect; check our work not just the answers...
Not only should you have listened to the calc, you should have noticed my typo. We try to help, but we're not always perfect; check our work not just the answers...
the right answer was 9.
for the whole quick check-
D-0.064
A-$30
D-3
A-9
for the whole quick check-
D-0.064
A-$30
D-3
A-9
Anonymous is correct i just took the quick check and got a A.
1 answer