Saturday
December 10, 2016

# Posts by barbra

Total # Posts: 21

Math
Please help me with this question. 4x^2-3x-3 = 0 has roots p, q. Find all quadratic equations with roots p^3 and q^3. I think I do know how to do it but no matter how many times I try, I could never get the right answer. Please help me!!
September 17, 2016

Math
I really need help with a quadratic question. So the problem is kx^2+[k+2]x-3=0 has roots which are real and positive. Find the possible values that k may have. The answer is -8+ √60<k<0 I get why they got -8+ √60 but I don't understand the 0. I thought ...
September 17, 2016

math
How come a lot of the questions posted in here don't get answered?
May 10, 2016

input output tables
I Just got it right it is output
November 2, 2015

math
What does that mean? I need what A and B equals.
October 15, 2014

Math
October 12, 2014

calc
let y be the function of x defined implicitly by the equation x^2 -2xy +2y^4=1. find the value of x where y obtains its maximum value.
August 1, 2013

chemistry
a gas occupies 37.6 L at 2.00 atm pressure and 27C degrees. how many moles of gas are present in this sample
May 8, 2013

chemistry
a sample of oxygen gas has a volume of 7.64 L at a temperature of 19C and a pressure of 1.38 atm. Calculate the moles of O2 present in this gas sample
May 8, 2013

math - stats
It is believed that at least 60% of voters from a certain region in Canada favor the free trade agreement (FTA). A recent poll indicated that out of 400 randomly selected individuals, 250 favored the FTA. If we wished to perform a test to determine whether the proportion of ...
December 19, 2012

art
whats 14.9% as a decimal?
November 1, 2011

algebra
i need help with 5th grade algebra my big bro. is helping me but i don't understand
March 31, 2011

Physics
How do you show that the kinetic energy is equal to the atoms rest energy when its velocity equals .886 times the speed of light? Thanks in advanced!
March 30, 2011

chemistry
Which of the following is an example of a change of state? Answer Snow blows to form snow drifts. Sodium metal and chlorine gas form salt crystals. Dry ice disappears. Grilling a steak turns it brown.
November 18, 2010

college chemistry
Which of the following compounds would theoretically have the highest melting point? Answer H2O FeO CO2 C6H12O6
November 18, 2010

college chemistry
Which of the following terms would be in the product(s) for the correctly balanced equation if the equilibrium expression is: [CO2]2/[CO]2[O2] a. O2 b. 2 CO2 c. CO2 d. 2 CO
November 4, 2010

college chemistry
Which of the following statements is not true when a human is subjected to cold temperatures? Answer a.blood vessels dialate to help dissipate heat b.shivering causes the muscles to generate more heat c.blood vessels in the extremities constrict to reduce the loss of heat d....
November 4, 2010

chemistry
Which term in the following reaction would not be included in the equilibrium expression? 2 Na3PO4 (aq) + 3 MgCl2 (aq) → 2 Mg3(PO4)2 (s) + 6 NaCl (aq)
November 4, 2010

algebra
if there is a 4 digit code and the number choices are 0-9 and the last two numbers in the code are 0 and 7 what are all the code possibilites? _ _ 0 7
June 14, 2010

Math
A=2 B=1 C=7 D=8
December 7, 2007

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