04/14/14

A dealership sets car prices so that there is a 40% profit. If the dealership paid $5300 for a car how much would the sell it for?
I can't answer this problem please help. I need to know this to help me understand something we are doing in class.
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04/14/14

Can anyone help me answer these two trigonometry math word problems and show all my work for both?
1. The profit of an organization is calculated by the function P(x) = x2 - 4000x + 7800000, where x is the number of units sold. If the net profit is 3800000, find the number of items sold.
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04/14/14

HOW DOES THE LAW OF CONSERVATION OF ANGULAR MOMENTUM CONTROL A FIGURE - SKATERS RATE OF SPIN.
NEED HELP EXPLAINING THIS QUESTION PLEASE .
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04/14/14

Differentiation
Derive the product rule for the differentiation of the product of three differentiable functions, that is , d/dx(f(x)g(x)h(x)).     Thank You!
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04/13/14

Can you answer this calculus question?
A particle moves along the graph of y=cos x so that its x-component of acceleration is always 2. At time t=0, the particle is at the point (pi, -1) and the velocity of the particle is <0,... more
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04/11/14

Can you please verify the correct answer? (Just check my work)
Which of the following is equal to the area of the region inside the polar curve r=2cos(θ) and outside the polar curve r=cos(θ)?   a) 3 ∫ cos^2 (θ) dθ from 0 to pi/2   b) 3 ∫ cos^2 (θ) dθ from... more
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04/11/14

can someone help me integrate the following?
∫(secθ⁄cosθ) dθ
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04/11/14

a $100 suit is on sale for 30% 0ff. You present a coupon for an additonal 20% off .
Use decay factors to determine the price of the suit.
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04/11/14

I need help finding optimal value, solution, slack/surplus.
Maximize 40X + 50Y + 80Z Total ProfitSubject to X + Y + Z > 1000 Total quantity required X + 3 Y + 2 Z ≤ 3000 Resource 1 2X + Y + 2Z ≤ 2500 Resource 2 And X, Y, Z ≥ 0Where X, Y, and Z... more
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04/10/14

How do you find the axis of symmetry when the vertex are (4, 0)?
I had to find the coordinates of the vertex and the equation of the axis of symmetry for the parabola given the by the equation h(x)=-1/2x to the 2nd power +4x-8 and the answer I came up with the... more
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04/10/14

how to solve word problem
Jim invested in ford motors.  He gained 10 % of his investment, giving him $50.  What was his initial investment? show work
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04/09/14

I need an example of a Study that is Concluding in a Proportion or a Percentage?
All I need is an example.
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04/09/14

Probability
Hello! I have a question about probability that I got for homework that I can't figure out. It would help if you told me how to solve this and future problems with the key words "and then" as in... more
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04/09/14

Explain how you rename the fraction part of the problem.
If you are adding 3 2/3 + 2 2/3, EXPLAIN how you rename the fraction part of this problem?
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04/09/14

Find the nth partial sum of the arithmetic sequence
1,4,9,16,25… ..n=10
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04/09/14

There are 3 scholarships of unequal value.In how many ways can they be distributed among 10 students giving not more than one to a student?
how do you go about this question?it seems to be confusing......
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04/09/14

Between the years 1984 and 1994, the average inflation rate was 6.3%. Find the salary in the year 1994 that would be equivalent to a $40,000 salary in 1984
Between the years 1984 and 1994, the average inflation rate was 6.3%. Find the salary in the year 1994 that would be equivalent to a $40,000 salary in 1984?
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04/08/14

-5x -12=-27 what does x equal
For my sons home work 
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04/08/14

Physics Questions
1. A string is under a tension of 750.0 N. A 1.7 m length of the string has a mass of 4.8 grams. What is the speed of a transverse wave of wavelength 0.50 m in this string? What is the frequency of... more
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04/08/14

solve for x
-6x greater than 18
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04/08/14

solve the equation
x/4  +  10 greater than 2
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04/08/14

write a formula to express the following relationship
In order to have an average of 85, Maia must earn at least a 76 and no more than a 95 on her final exam.  If M represents the final exam grade, write a compound inequality representing the grades... more
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04/08/14

The volume of a sphere is equal to four-thirds the radius (r) cubed multiplied by pi
Write a formula to express  the relationship
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04/07/14

At 1 atm, how much energy is required to heat 77.0 g of H2O(s) at –24.0 °C to H2O(g) at 169.0 °C?
What is the answer in kJ?
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04/07/14

How can light have momentum?
So, I have been watching a lot of videos on physics, and a few of them have eluded to the fact that light has momentum. For instance, minutephysics video "E=MC2" is incomplete states that the full... more
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