IsTim
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Questions Asked

IsTim:
Group Title
How to calculat Pooled MEean and Standard Deviation?
 updated 3 months ago
 2 replies
 No Medals Yet
Mathematics

IsTim:
Group Title
he following definite integral can be evaluated by subtracting F(B)  F(A), where F(B) and F(A) are found from substituting the limits of in…
 updated 10 months ago
 83 replies
 2 Medals
Mathematics

IsTim:
Group Title
The ladder is carried across a corner of a soccer pitch. The man steps on to the soccer pitch 3.5 m from the corner and off when 2.7 m from …
 updated one year ago
 6 replies
 1 Medal
Mathematics

IsTim:
Group Title
Balance: C5H12+O2>10CO2
12H2O
 updated one year ago
 13 replies
 1 Medal
Mathematics

IsTim:
Group Title
In Part A, you determined that the heat added to the coffee is what you got. If it takes 4.2 J of energy to raise the temperature of 1.0 mL …
 updated one year ago
 6 replies
 No Medals Yet
Mathematics

IsTim:
Group Title
In Part A, you determined that the heat added to the coffee is what you got. If it takes 4.2 J of energy to raise the temperature of 1.0 mL …
 updated one year ago
 35 replies
 1 Medal
Mathematics

IsTim:
Group Title
"When fewer histogram bars are used, the accuracy of a calculation of standard deviation using the grouped data formula is diminished" How s…
 updated one year ago
 No Medals Yet
Mathematics

IsTim:
Group Title
B iii. What percent is the maximum expected to be outside from Chebychev's rule?
What does this mean? This is from a graphing assignment.…
 updated one year ago
 No Medals Yet
Mathematics

IsTim:
Group Title
Calculate the mean +/ 2 standard deviations using results of the Descriptive Statistics.
This is using the MiniTab 14 Software.
What does…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

IsTim:
Group Title
Calculate the mean +/ 2 standard deviations using results of the Descriptive Statistics.
This is using the MiniTab 14 Software.
What does…
 updated one year ago
 4 replies
 1 Medal
Mathematics

IsTim:
Group Title
An ore contains 39.2 % of the mineral rutile, TiO 2, which is a source of the element Ti. How much ore must be processed in order to obtain …
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

IsTim:
Group Title
Simplify g(x+3) when g(x)=x^22x+1
 updated one year ago
 7 replies
 1 Medal
Mathematics

IsTim:
Group Title
Simple dimensional analysis: To cancel out "s" in J/S, do I multiply or divide J/s by s? s in both cases are the same.
 updated 2 years ago
 12 replies
 No Medals Yet
Mathematics

IsTim:
Group Title
if the solution changes colours, are the chemicals soluble?
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

IsTim:
Group Title
QUIKCHECK Is the derivative of y=x^2sin(2x) y'=2xsin(2x)+2x^2cos(2x)?
 updated 2 years ago
 6 replies
 1 Medal
Mathematics

IsTim:
Group Title
Using acidbase table, determine the Kb for the nitrite ion.
 updated 2 years ago
 8 replies
 1 Medal
Mathematics

IsTim:
Group Title
The hydroxide ion concentration in a 0.157 mol/L solution of sodium propanoate, NaC3H5O2 (aq) is found to be 1.1*10^5 mol/L. Calculate the …
 updated 2 years ago
 23 replies
 1 Medal
Mathematics

IsTim:
Group Title
Use the first principles definition to determine the 1st derivative of h(t)=2t/(t+3)
 updated 2 years ago
 29 replies
 1 Medal
Mathematics

IsTim:
Group Title
Use the first principles definition to determine the first derivative of sqrt(2x1)
 updated 2 years ago
 26 replies
 3 Medals
Mathematics

IsTim:
Group Title
For an outdoor concert, a ticket price of $30 typically attracts 5000 people. For each $1 increase in the ticket price, 100 fewer people wil…
 updated 2 years ago
 46 replies
 4 Medals
Mathematics

IsTim:
Group Title
The total cost, C, in dollars, of operating a factory that produces kitchen utensils is (x)=0.5x^2+40x+8000, where x is the number of items …
 updated 2 years ago
 10 replies
 No Medals Yet
Mathematics

IsTim:
Group Title
The total cost, C, in dollars, of operating a factory that produces kitchen utensils is (x)=0.5x^2+40x+8000, where x is the number of items …
 updated 2 years ago
 No Medals Yet
Mathematics

IsTim:
Group Title
A yogurt company estimates that the revenue from selling x containers of yogurt is 4.5x. Its cost, C, in dollars, for producing this # of co…
 updated 2 years ago
 4 replies
 4 Medals
Mathematics

IsTim:
Group Title
A yogurt company estimates that the revenue from selling x containers of yogurt is 4.5x. Its cost, C, in dollars, for producing this # of co…
 updated 2 years ago
 7 replies
 1 Medal
Mathematics

IsTim:
Group Title
A paint store sells 270 cans of paint per month at a price $32 each. A customer survey indicates that for each $1.20 decrease in price, sale…
 updated 2 years ago
 26 replies
 3 Medals
Mathematics

IsTim:
Group Title
Ties into my previous 2 questions: What do you conclude?
http://openstudy.com/study#/updates/4fa76dd6e4b029e9dc3864f0
http://openstudy.com…
 updated 2 years ago
 16 replies
 No Medals Yet
Mathematics

IsTim:
Group Title
Solve 3^x=15 by taking the common logarithm of both sides.
 updated 2 years ago
 8 replies
 3 Medals
Mathematics

IsTim:
Group Title
Solve 3^x=15 by taking the natural logarithm of both sides.
 updated 2 years ago
 10 replies
 2 Medals
Mathematics

IsTim:
Group Title
Solve for x, correct to 3 decimal places.
1000=20e^(x/4)
 updated 2 years ago
 3 replies
 2 Medals
Mathematics

IsTim:
Group Title
Determine the equation of the tangent to the curve at a given point.
x^2+9y^2=37 (1,2)
 updated 2 years ago
 65 replies
 1 Medal
Mathematics
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