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hiralpatel121
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Can someone help me solve this calc problem? It's attached.
 2 years ago
 2 years ago
hiralpatel121 Group Title
Can someone help me solve this calc problem? It's attached.
 2 years ago
 2 years ago

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hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
Sample problem:
 2 years ago

myko Group TitleBest ResponseYou've already chosen the best response.0
you have the solution with the explanation, so what else do you need?
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
I have a sample problem. I've tried applying the steps to the actual problem but it's confusing.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
So instead of substituting 6 and 1 into the v's, you'll substitute 5 and 2.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
The substitution takes place at the part where the expression is in square brackets. [ ]
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
You'll plug in 5 first and evaluate. Keep that answer on the side somewhere. Then you'll go back to the square brackets again, plug in 2 and evaluate. Whatever you get as the answer, you'll subtract that from the answer you got when you plugged in 5.
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
Can you wait while I do it, and tell me if it's correct?
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
I got 77.5 when I plugged in 5.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
I got 7.5
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
There's an extra negative sign next to the red negative sign. Ignore the extra one.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
\[{3(5)^{2}\over 2}+6(5)\]
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
Okay, so if I plug in 1, I'll get 3/2+8 = 6.5
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
No. 4.5.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Look at the equation I wrote above.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
What do you get when you evaluate that expression?
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
Oh, I forgot to square it.
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
Then I get: (7.5+4.5)  (3/2 +8) = 9.5 or 19/2.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
It's cool.
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
It's not correct though.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
You're doing more than what it's asking for. The only values you're evaluating are 5 and 2. Not 6 and 1.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
6 and 1 are solely used in the example.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
You never answered my question. What do you get when you evaluate the expression I wrote above?
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Awesome. Now imagine the 5 is gone and a 2 is in its place in the expression above. What do you get now?
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Replace BOTH 5s with 2s. Not just the one on the left.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Perfect. Now the last step is subtracting that 6 from 7.5: 7.5  6 =
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
13.5
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Awesome : )
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
But if you look at the sample problem, they subtracted another part too.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
They subtracted the value of the expression when a 1 was plugged in. We subtracted the value of the expression when a 2 was plugged in.
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
I got 8 and it's still wrong.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
8 on which problem?
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Ugh. It's + 8 not +6
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
\[{3v ^{2} \over 2}+8v\]
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Answer: 7.5 or 15/2
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Sorry. I thought the expressions were the same in the example and actual problems.
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
It's okay. Can you help with another problem?
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
If you're not busy?
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
Sample:
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Start off exactly as the example starts by dividing u and 4 by the square root of u. This gives you: \[\int\limits_{1}^{9}u ^{1/2}4u ^{1/2}\]
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Then integrate each term.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
\[[{2 \over 3}u ^{3/2}8u ^{1/2}]\]
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Plug in 9 first, and evaluate. Plug in 1 afterwards, then evaluate. Subtract the second answer from the first one.
 2 years ago

coreylvaughn Group TitleBest ResponseYou've already chosen the best response.1
Take care and don't forget to mark a Best Response. Thank you
 2 years ago
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