02/19/14

What is the area of the top of a jar if the diameter of the jar is 3.00 inches?

11/24/13

#### Finding a definte Integral

Need help on     ∫1/(1-Χ²)    from -√2/2       to   +√2/2

#### Newton's Law of Cooling

after the coffee is heated to 200 degrees , it is set in a room at 50 degrees.It cools at a rate that is proportional to the difference between its current temperature and that of the surrounding... more

11/24/13

#### Find the interest earned on an interest-bearing account

Every month, a particular interest-bearing account earns 0.2 percent interest on the average balance for that month. The function B(t) =7.5t^2 -300t +5000 represents one investor's balance in this... more

11/24/13

#### what is the maximum y value on the graph of y=f(x) f(x)= -x^2+6x+8

what is the maximum y value on the graph of y=f(x) f(x)= -x^2+6x+8

11/24/13

#### Statistics questions

The mean incubation time for a type of fertilized egg is 19 days.  Suppose the incubation times are approximately normally distrubuted with a standard deviation of 1 day. What is the probability a... more

11/21/13

#### 2- A radioactive substance decays at a rate proportional to itself. There are 200 grams at the start and 150 grams at the end of 12 hours. A) Find the amount A

2- A radioactive substance decays at a rate proportional to itself. There are 200 grams at the start and 150 grams at the end of 12 hours.A) Find the amount A present at any time t. [Round k to... more

11/21/13

77 -4 4 -24

11/21/13

#### Round-off?

Round-off -349.87 to three significant figures.

11/21/13

#### Round-off?

Round-off 0.01302 to three significant figures.

11/21/13

#### (1.5, 7.5) is a solution of a direct variation what would be it's direct variation equation

I don't understand this and I am almost failing please help me figure out how to do this I am in algebra and this is very confusing

11/21/13

#### how to do proofs

in a triangle, segment AB is parallel to segment CD, and segment AC is parallel to segment BD. prove that triangle ABC is congruent to triangle DCB.

11/14/13

#### monopolistic firm involving income effect and substitution effect

Given the demand function of a monopolist operating two plants is equal to Q=400-4p and cost functions for plant A is equal to C=20Q and plant B is equal to C=0.5Q² Assuming the monopolist can... more

03/03/13

#### 30% of all Girl Scout cookies sold are Thin Mints. If we select 9 boxes of cookies at random, what is the probability at most 5 of them are Thin Mints?

Economic Statistics IDoes anyone have a formula for these type of problems?

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