Wednesday
June 19, 2013

Total # Posts: 258

Art
Why is important for children to draw pictures of things that scare them (otherwise what does the child learn from this?

math
If you had a fraction strip folded into tenths what fractional lengths could yu measure with the strip?

math
The tread life of a particular tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 2000 miles. What is the probability that a randomly selected tire of this brand will last longer than 58,000 miles? A.0.7266...

alegebra
i don't know any i need help asap!

science
A ball is dropped from a cliff and has an acceleration of 9.8 m/s2. How long will it take the ball to reach a speed of 24.5 m/s?

Math
Mike can mow a lawn in 3 hours. Paul can mow the same lawn in 2 hours. How long would it take both of them working together to mow the lawn? The answer is suppose to be 20/9. This is what I did and I get 9/20. What am i doing wrong? 1.4x+1/5x=1 which gives u 9/20. I'm so l...

Math
Solve each inequality algebraically. |2x-1|-2<3 I don't understand how the answer is -2<x<3

Math
A student scored 65, 80, 74 on the first three tests during the term. What does the student need to score on the fourth test to ensure and an average score that is above 75?

math
How do I start off this equation? Using correct mathematical notation and symbols, express the following in set builder notation: Z = {4, 5, 6, 7, 8, 9, 10, 11}

math
Given these sets: A = {1, 2, 3, 4} B = {3, 4, 5, 6, 7} C = {3, 5, 7, 9} List the elements of this set C ¿ (A u B) Do I list the numbers in C that is not in A and B?

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