Thursday
May 5, 2016

# Posts by mv

Total # Posts: 24

trig
thank you, the answer is just: =sin(x)
March 23, 2016

trig
Simplify and write the trigonometric expression in terms of sine and cosine: cot(-x)cos(-x)+sin(-x)=-1/f(x)=f(x)=____________ I've tried everything, I think that the "-1/f(x)" part is screwing up my answer but I'm not sure what it's asking me to do with ...
March 23, 2016

Finite Math
Determine the 5th term of (2x+3y)^12
May 6, 2012

Finite math
A newly married couple decides to keep having children until they have a girl. What is the probability that the couple will have at least 5 children?
May 3, 2012

Finite Math
Working on this for a couple of hours, any help? Input -output matrix F S C F .1 0 .2 S .2 .1 .4 C 0 0 .1 F= Food S=Shelter C=Clothing x=(I-A)^-1(D) 1)What should the total production of the three industries be to generate a \$900,000 surplus each? I gotthe following for 1) F=1...
February 26, 2012

Algebra2
The function f(t)=100,000/1+5000e^(-t) represents the population of an endangered species bird t years after they were introduced to a non-threatening habitat. a.In what year will there be 70,000 birds? b.How many birds were intially introduced to the habitat? c.How many birds...
December 6, 2011

Algebra 2
e^(x-2)-12^(2x+3)=0 Class is a college level math prep. Sorry for previous post being incomplete. I'm thinking: ln^(x-2)=ln12^(2x+3) (x-2)ln=(2x+3)ln12 xln-2ln=2xln(12)+3ln(12) xln-2xln(12)= 2ln+3ln(12) and not sure
December 6, 2011

Algebra
e^(x-2)-12^(2x+3)=0 Class is a college level math prep. Sorry for being incomplete in the post.
December 5, 2011

Algebra
e^x-2-12^2x+3=0
December 5, 2011

Algebra2
I believe it may be x=2,x=13
December 5, 2011

Algebra2
Use properties of logartithms to simplify and solve. Thanks. ln(x-3)-ln(11x-23)+in(x-1)=0
December 5, 2011

Algebra2
that should be x times the square root of x squared plus one divided by( or fraction bar) x plus one raised to the 2/3 power, all raised to the power of 6
December 5, 2011

Algebra2
log((x(sqrtã(X^2+1)/(x+1)^(2/3)))^6 Any ideas would be great, thanks
December 5, 2011

Algebra 2
1.)Find inverse function of the function f(x)=(x+3)+9 2.)Find the inverse of the function r(x)=3x-6/5x+3 thanks
December 3, 2011

Composite Functions
f(x)=(7x+28)/(x-3) and g(x)=(3x+28)/(x-7) Find: (fog)(x) (gof)(x) (fog)(-1)
December 3, 2011

Algebra
log[3](2x+8)+log[3](3x)=log[3](2) Need help with this one please, thanks.
December 1, 2011

Algebra
Let t=50 y=30(2.7)^-0.004t y=30(2.7)^-0.004(50) y=30(2.7)^-.2 Need help with proper technique for using TI-83 to calculate. Thanks
November 27, 2011

Algebra
The difference between the number of people who speak French and Spanish is 15,637,000 and the difference between those who speak French and German is 155,000, while the total number of people who speak all three is 20,588,000. Determine from information the number of people ...
November 21, 2011

Algebra
h=7/5d-d^2/100 where h is the height of the arch above the road in meters. Not actually looking to have all completed, but give advice on how to achieve the results a. where does the arch and road come together? b.How far is it from where the arch begins on the left and where ...
November 21, 2011

Algebra
How do I create a quadratic equation that passes through the points (-1,2),(1,7),(4,5)?
November 20, 2011

Int. Algebra
The spread of oil leaking from a tanker after t hours is in the shape of a circle with radius r(t) = 200 square root t+3, - 600 (in feet). A. Find the time it takes for the leak to spread at a radius of 1800ft. B. Find the area A of the oil leak as a function of time t.
October 26, 2011

Chemistry
The answer is correct for 1 which is C. However for Ques 2. it says which element so the answer should be B
September 23, 2008

Chemistry
A compound containg 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide (CO2) and water. What element should you look at first in balancing this equation? Is the answer a.b.c or d? ...
July 4, 2008

Chemistry
A compound containg 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide (CO2) and water. What element should you look at first in balancing this equation?
July 4, 2008

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