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CMM
Questions (37)
Find the value of the definite integral:
int= integral sign int((x + 2)/(x^(3/2)),x= 16..25)dx I have no idea how to start
2 answers
520 views
A 24 foot ladder is leaning against a building. Let x be the distance between the bottom of the ladder and the building and let
1 answer
597 views
Could someone please explain this to me?
Differentiate. h(u)= 10^(sqrt(u)) h'(u)= 10^(sqrt(u))*log(10)(d/du(sqrt(u))) h'(u)=
2 answers
589 views
Evaluate the integral.
S= integral sign I= absolute value S ((cos x)/(2 + sin x))dx Not sure if I'm doing this right: u= 2 + sin
4 answers
693 views
Evaluate the indefinite integral. Please check my work? Not sure if I am doing this correctly.
S= integral symbol S x^3*sqrt(x^2
1 answer
603 views
Evaluate the definite integral.
S b= sqrt(Pi) a= 0 xcos(x^2)dx I'm not sure if this is right? u= x^2 du= 2xdx du/2= xdx S
6 answers
562 views
a)If f(x)= x/(x+2), 1 less than or equal to x less than or equal to 4, find the left and right sums for n= 10, 30, and 50.
b)Illu
0 answers
514 views
If f(x)= sec x, find f"(Pi/4)
I am not sure how to take the 2nd derivative? f'(x)= sec x tan x f"(x)=??? Is it f"(x)= (sec x tan
3 answers
1,406 views
Differentiate.
y= u(a cos u + b cot u) I am not sure if this correct. I was not sure whether to leave the variables as are or
2 answers
1,100 views
Find the points on the curve y= (cos x)/(2 + sin x) at which the tangent is horizontal.
I am not sure, but would I find the
1 answer
3,013 views
Posted by CMM on Wednesday, October 13, 2010 at 12:50am.
Calculate the following: a) Find g(f(1)) b) Find lim x-> 1+ g(f(x)) c)
2 answers
558 views
Calculate the following:
a) Find g(f(1)) b) Find lim x-> 1+ g(f(x)) c) Find f(g(0)) d) Find lim x->0- f(g(x)) f(x)= 1-x, x<1 1,
4 answers
850 views
Calculate the following:
a) Find g(f(1)) b) Find lim x-> 1+ g(f(x)) c) Find f(g(0)) d) Find lim x->0- f(g(x)) f(x)= 1-x, x<1 1,
0 answers
636 views
An open box (has a bottom but no top) needs to be constructed which has a volume of 500 cu. in. The bottom of the box is to be a
1 answer
1,042 views
Find f'(a).
f(x)= (x^2 + 1)/(x - 2) So, [[(a + h)^2 + 1]/[(a + h) - 2]] - [(a^2 + 1)/a - 2] and the whole thing divided by h I
1 answer
385 views
Find f'(a).
f(x)= (x^2 + 1)/(x - 2) So, [[(a + h)^2 + 1]/[(a + h) - 2]] - [(a^2 + 1)/a - 2] and the whole thing divided by h I
0 answers
362 views
Use a table of values to estimate the value of the limit.
lim (tan 3x/tan 5x) x--> 0 I have no clue what to do. Could someone
1 answer
1,346 views
If a rock is thrown upward on the planet Mars with a velocity of 10 m/s, its height in meters t seconds later is given by y =
1 answer
8,351 views
1. Find examples of reagents used in performing chemical resolutions of acidic, basic, and neutral racemic compounds.
2. Propose
0 answers
593 views
1. Find examples of reagents used in performing chemical resolutions of acidic, basic, and neutral racemic compounds.
2. Propose
0 answers
530 views
Draw a mechanism that explains how the nitro-substituted aromatic products observed in your reaction were formed. My sample was
0 answers
471 views
Synthesize 6-(4-tert-butylphenyl)cyclohex-3-enecarbonitrile using (Z)-3-phenylacrylonitrile as your starting material and any
1 answer
394 views
Provide methods for preparing the following compounds by the Grignard method:
A) 3-pentanol B) Hexanoic acid There are also 2
5 answers
3,685 views
When sucrose is fermented to produce ethanol why is it not possible to obtain a final solution containing more than 10-15%
1 answer
429 views
When sucrose is fermented to produce ethanol why is it not possible to obtain a final solution containing more than 10-15%
1 answer
448 views
When sucrose is fermented to produce ethanol why is it not possible to obtain a final solution containing more than 10-15%
0 answers
386 views
Why is it not possible to achieve a complete separation of the ethanol from the water in the clarified reaction mixture via
0 answers
542 views
Why is it not possible to achieve a complete separation of the ethanol from the water in the clarified reaction mixture via
0 answers
576 views
When sucrose is fermented to produce ethanol why is it not possible to obtain a final solution containing more than 10-15%
0 answers
417 views
Experiment= synthesis of n-butyl bromide, using n-butyl alcohol, NaBr, H2SO4. A) An ether and an alkene are formed as
5 answers
2,684 views
If n-butyl alcohol, sodium bromide, water, and concentrated sulfuric acid (cooled in ice bath while adding H2SO4) are placed in
1 answer
947 views
Dr. Bob, earlier you gave me the equation H2SO4 + NaHCO3 -> H2O + CO2 + Na2CO3 to balance. However, the S is not in the
2 answers
535 views
If the actual density is 1.2686 g/mL and the determined density by experiment was 1.0275 g/mL, is it reasonable to conclude the
2 answers
487 views
We did an experiment on the synthesis of n-butyl bromide using n-butyl alcohol and H2SO4. Why does the alkyl halide layer switch
2 answers
1,376 views
We did an experiment with the synthesis of n-butyl bromide, using n-butyl alcohol, NaBr, and H2SO4. The question is: Aqueous
3 answers
1,362 views
A natural product (MW=150) distills with steam at a boiling temperature of 99 degrees Celsius at atmospheric pressure. The vapor
1 answer
2,357 views
Explain how caryophyllene fits the isoprene rule.
I don't know how to explain this. I do know the isoprene rule is (C5H8)n, where
3 answers
1,598 views
Answers (15)
positive
Oops, I should have been more specific. I need to solve it using sums, not antiderivates.
So I get this: = ln Isin(u)I + C = ln Isin(ln x)I + C = ln (sin(ln x)) + C OR = ln (sin(1/x)) + C Is it correct or incorrect?
Why is it S (ln u) du = ? What about the sin? And to multiply them are you reciprocating?
But the x is the only thing being squared I thought because it is within parentheses and then multiplied by xcos dx?
S is supposed to be the integral symbol and b is the upper bound and a is the lower bound. Yes, xcos(x^2) dx is it.
How else would you go about it?
Ok, so here is what I think. a) f(1)=2 g(1)=x+2 1+2= 3? b)lim x->1+ f(x)=0 lim x->1+ g(x)= 2? c)g(0)=2 f(2)= ???? d) lim x->0- g(x)=0 lim x->0- f(x)= 1? Right or Wrong?
I'm just as confused!
Oops, I didn't get the correction note before I submitted, but thanks I appreciate your help.
Thank you so much. However, I thought B) hexanoic acid had to have a C=OOH?
I believe the 1-butene forms by an SN1 mechanism and the dibutyl ether forms by E1 mechanism, but I am still not sure which are the nucleophiles, electrophiles, leaving group, etc.?
Thanks, but what happened to the S in the equation? There needs to be one in the products to balance.
Thank you very much.
I solved for o and got 0.306957708 grams. Correct? For B, I did this: 0.5 X 0.10 = 0.05 g 0.306957708 - 0.05 = 0.256957708 g of water, which is my answer. Correct?
