03/30/14

Find the constant term
Find the constant term in the expansion of  (-2x6+(5/x))21
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03/30/14

Find general solution of y" + 2y' + y = 2e^-t
Answer: c1e^-t + c2t^-t + t^2e^-t
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03/25/14

help with GFC and LCM
How do I find the GCF and the LCM for 9x^2y and 36xy^3     thanks
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03/18/14

prove that 3 is the only prime which can be written in the form n^2-1 for some integer n.
question 2: Try to find a positive integer n such that n^2-n+41 is not a prime.
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03/16/14

8-bit representation question
Using 8-bit representation compute the following sumsa) 111 + 45b) 67 + 67
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03/14/14

Express the following equation, using O ? or T notation
Express the following equation, using Ω Ο or Θ notation|3x^5 -4x^4 +3x^3 +2x^2 +5x +12| ≤ 12|x^5 |
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02/27/14

what is 1/450 to percent
I am supposed to write fraction as a percent  
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02/25/14

How can I find the least-square regression line?
If I was given this data how can I find the least squares regression line:   x = 21   y= 78   sx = 1.5   sy= 0.8   r=0.81
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02/25/14

mean score of 80 & standard deviation of 5
The scores on a math test were normally distributed with a mean sore of 80 and a standard deviation of 5. What percent of the students scored less than 69?
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02/24/14

Geometry help!
a spotlight is mounted on a wall 7.4 feet above the office building. It is used to light a door 9.3 feet from the wall. to the nearest degree, what is the angle of depression from the spotlight to... more
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02/04/14

what compounds don't involve covalent bonds?
Which compound below does not involve covalent bonds? (A) C2H6 (B) SF4 (C) O2 (D) Mg3N2   stuck on this question. Please help.
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02/04/14

I have a question on my math quiz i had yesterday. I didn't know how to answer it. My teacher said to use 24 for how many hours he swam or something.
A swimmer broke a world record by crossing the Atlantic ocean on a raft. He traveled about 44 miles each day by swimming s hours and floating f hours. The rates for swimming are 3 mph. The rates... more
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01/18/14

What can I file for?
I have been currently unemployed for the whole 2013 year, and tax season is coming up here soon and I was wondering what I could file for? During the year I purchased a 2013 TDI Jetta, can I get... more
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01/15/14

if a ferris well take 45 seconds to make a complete rotation how many rotations will is complete in 3 hours
if a ferris well take 45 seconds to make a complete rotation how many rotations will is complete in 3 hours
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01/15/14

What is the minterm notation for the following function? – f(a,b,c) = abc+a'bc+abc'+a'b'c
Design a controller of the parking meter. The controller has two inputs, C and B. C is a one-bit inputfrom the car detector. If there is a car in the parking spot, C = 1, otherwise C = 0. B is a... more
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01/10/14

story problem
Mrs Bruce lacks 1 year from being 5 times as old as her son. Five years from now she will lack 1 from being 3 times as old as her son will be then. Find each of their ages. I know the first... more
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01/05/14

Use the sum or difference formulas to determine: A. sin105 degrees and B. tan15 degrees
This is for my trig class, thanks for the help!
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01/01/14

what force is required to accelerate a 115 kg linebacker at a rate of 3.5m/s2
what force is required to accelerate a 115kg linebacker at a rate of 3.5m/s2
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01/01/14

How do I completely factor expressions
Please help since I am confused on how to do this.      How do I compete factor   144 - 9p^2   ?      Please show steps.  Thanks!
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01/01/14

can you help me with this question?
this is the math question that i was ask to solve but do not understand. you are interesting in purchasing a wide-screen television set at target. on this type of tv the ratio of screen width to... more
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12/30/13

evaluate expression
please evaluate this expression, then put in scientic notation.   9.6 x 10^3 2.4 x 10^5   I have 4x10^-3 for the evaluation but don't know if it should be 4.0 x10^-4  since the exponent is a... more
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12/30/13

the vertex of the parabola below is at the point (4, -1). Which could be this parabola's equation?
I don't understand the question. What would the equation be for this vertex of the parabola? I'm doing Conic sections, and  I don't understand the question.
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12/29/13

write a rule
how do I write a rule for:       x   -1, 0, 1, 2     y    1, 3, 9, 27     I think it is x add 1, and y multiply by 3   ---------------------------------------------------------------    ... more
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12/29/13

evaluate expression
how do I evaluate the expressions, then write the answer in scientific notation?   1.  (4.2 x 10^2) (4.2 x 10^5)   2.  (2.5 x 10 ^-2)^4       write this number only in scientific... more
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12/28/13

word problem with system of inequalities
rick is buying souvenirs on vacation. he wants to spend $70 at most, buy only has 60 cubic inches of space availalbe in his luggage. if bracelets cost $7 and take up 3 in (3) of space and t-shirts... more
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