Saturday
May 18, 2013

# Posts by tammy

Total # Posts: 571

Math Middle
In a pet store, 1/6 of the puppies are black and and 1/4 are white. What fraction of the puppies are black or white. My answer is 2/3 of the puppies are black or white.

english
We had lost our first three games of the season nevertheless our spirits remain high. I would like to know where should the commas go

Statistics
A lottery uses 4 urns containing chips 0 to 9. One chip is selected at random from each urn. How many sample points are in the sample space?

math
Five years ago, you bought a house for \$151,000, with a downpayment of \$30,000 which meant you took out a \$121,000 loan. Your interest rate was 5.75% fixed. You would like to pay more on your loan. You check your bank statement and find the following information. Escrow paymen...

volume of oxygen in liters at .91 ml of oxygen

Chemistry
Using half reactions, write the equation for MnO4- reacting with H2O2 in acid solution to give Mn2+ and O2

statistics
You are designing a study to determine whether music has an effect on learning. Previous research indicates that the standard deviation to learn a task is 3.4 minutes. How many subjects would you need to ensure with 90% confidence that the estimate is within 1 minute of the tr...

statistics
For a normal distribution with a mean of 140 and a standard deviation of 55 find each value requested. a. What is the minimum score needed to be in the bottom 10% of the distribution? b. What scores form the boundaries for the middle 75% of the distribution.

College math
1.Find the height to the nearest foot of a tree that makes a 50-foot shadow when a 2 ft. 6 in. pole is used to make a shadow of 3 feet.

science
A ball of mass m is attached by two strings to a vertical rod. as shown above. The entire system rotates at constant angular velocity about the axis of the rod. a)Assuming is large enough to keep both strings taut, find the force each string exerts on the ball in terms of , m,...

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