Math Help

Archive for June, 2009

Question: Math problem with decimals, can someone please help?

Simplify as much as possible. Write your answer as a decimal.

7.3 – (2/5)(1.75)

The fraction threw me off, decimals has never been my best part of math. Thanks in advance for any help

Answer: 7.3 – (2/5)x(1.75)
2/5 = 4/10 = .4 (4 tenths)
1.75
x .4
———
.700
multiply like whole numbers then move the decimal place left 3 times because there are 3 digits behind a decimal.
7.3 – .7 = 6.6

Decimals to Fractions – YourTeacher.com – Math Help

Question: How do you do this calculus math problem?

Here is the link to the problem:

Its extremely difficult. Please help, its the last problem I have and it has been bugging me for the past 20 minutes.
Thanks!!

Answer: jsut substitute your x for h. (this part is algebra)

and take the derivative wrt h and plug in your initial value for the constant

or

you can take the derivative of both equations, then do a substitution.

good luck

Calculus Help: Limits 1

Below are methods of discrete probability distributions. Discrete probability distribution techniques are often used in discrete probability distributions problems and discrete data distribution problems in statistics. The formulas for discrete probability distributions below are very useful for calculating the mean and the variance.

Bernoulli distribution

Binomial b(n,p) distribution

where

Geometric distribution

Poisson distribution

Uniform distribution