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Questions Answered

S:
Group Title
Given the sequence length and the number of mutations between two sequences, calculate the percent identity shared among these sequences. S…
 updated 11 months ago
 3 replies
 No Medals Yet
Mathematics

tomefrome:
Group Title
..
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

sarahc:
Group Title
What coefficients must be added to balance the following equation?
_____NaOH + _____H2 SO4 _____ Na2SO4 + _____ H2O
…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

S:
Group Title
N2O4(g)<>2NO2 , kp= 0.15
A gaseous mixture contains 0.600 ATM pressure of n2o4 is mixed with 0.75. ATM pressure of no2. Calculate the equi…
 updated one year ago
 14 replies
 3 Medals
Mathematics

S:
Group Title
In the first order reaction A. products [A]= 0.826M initially and 0.634 M after 15.0 min. What will [A] be after 2.7 h? ( t1/2= 39.3 min)
 updated one year ago
 9 replies
 1 Medal
Mathematics

S:
Group Title
Rate question : Assume the rate remains at 1.82*10^5 Ms^1. How long would it take for [A] to change from 0.3585M to 0.3505M?
…
 updated one year ago
 3 replies
 1 Medal
Mathematics

S:
Group Title
In a discount supermarket, it is found that 70% of the sales are for less than 50$. Find the probability a) Four randomly selected sales are…
 updated one year ago
 2 replies
 1 Medal
Mathematics

S:
Group Title
Rank from most conductive to least conductive: AlCl3, C6H12O6, KBr, C3H7OOH ??
 updated one year ago
 5 replies
 1 Medal
Mathematics

S:
Group Title
Use separation of variables to solve differential equation: dy/dt=t/((y+1)^1/2)), y(1)=3 ???
 updated one year ago
 12 replies
 No Medals Yet
Mathematics

S:
Group Title
use separation of variables to solve differential equation :dy/dx=t/(y+1)^(1/2) , y(1)=3 ?
…
 updated one year ago
 9 replies
 1 Medal
Mathematics

S:
Group Title
After an advertising campaign, the sales of a product often increase and then decrease. Suppose that t days after the end of the advertisin…
 updated 2 years ago
 7 replies
 1 Medal
Mathematics

S:
Group Title
An object is thrown up from a height of 160 feet. Its velocity at t is v(t)=32t+24 ft/ sec
How do i find the velocity when it hits the gr…
 updated 2 years ago
 3 replies
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Mathematics

S:
Group Title
An object is thrown up from a height of 160 feet. Its velocity at t is v(t)=32t+24 ft/ sec a) how high will it go? b) with what velocity wi…
 updated 2 years ago
 4 replies
 1 Medal
Mathematics

S:
Group Title
how to find x in x^2x1 ?
…
 updated 2 years ago
 11 replies
 1 Medal
Mathematics

S:
Group Title
using the definition of derivative(limits) compute f'(x)
f(x)=3/(4x2) ?
 updated 2 years ago
 6 replies
 1 Medal
Mathematics

S:
Group Title
Find dy/dx: y=e^(53lnx)
 updated 2 years ago
 19 replies
 2 Medals
Mathematics

S:
Group Title
find dy/ dx and simplify : y=lnx/e^(2x) ?
 updated 2 years ago
 7 replies
 1 Medal
Mathematics

S:
Group Title
Simplify : e^(2lnx)+3e^ln(2x)
…
 updated 2 years ago
 15 replies
 2 Medals
Mathematics

S:
Group Title
Simplify e^(ln2x+2ln3x)+e^(ln3)
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

S:
Group Title
find the maximum or minimum relative point of the function : f(x)=(1x)e^(2x) ?
 updated 2 years ago
 4 replies
 1 Medal
Mathematics

S:
Group Title
How to sketch the graph of f(x)=x^2(x^24) including the inflection point?
 updated 2 years ago
 17 replies
 2 Medals
Mathematics

S:
Group Title
Let X1, X2, X3 denote a random sample of size 3 from a gamma distribution with alpha=7 and theta=5.
a) Find the moment generating functi…
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

greenlamp:
Group Title
sasha is arranging ride so that 27 of her members can go blowing ,some people can ride and vans and the rest must ride in cars . if 12 go in…
 updated 2 years ago
 2 replies
 3 Medals
Mathematics

greenlamp:
Group Title
it is 170 miles from brians house to the city where his brother lives , o his last trip to visit his brother he drove 2 hours at 55 mph . th…
 updated 2 years ago
 5 replies
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Mathematics

BrHowk:
Group Title
Explain how to convert 96 oz to pounds.
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

tarap:
Group Title
find the length of AB,given that DB is a median of the triangle and AC=26
 updated 2 years ago
 6 replies
 No Medals Yet
Mathematics

2yoututu11:
Group Title
help
A pastry recipe calls for 3 cups of flour to make 8 servings. How many cups of flour are needed to make 6 servings?
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

S:
Group Title
Let X1, X2, and X3 be mutually independent random variables with Poisson distributions having means 2, 1, 4, respectively. Find the moment g…
 updated 2 years ago
 18 replies
 1 Medal
Mathematics

irish1969:
Group Title
Can you please help me solve:
4 bananas are to be selected from a group of 9. In how many ways can this be done? thanks.
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

S:
Group Title
Find the derivative and simplify : y=(3x^2+5x+1)/(3x^2) ?
…
 updated 2 years ago
 13 replies
 1 Medal
Mathematics
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