Friday
May 24, 2013

Posts by Amber


Total # Posts: 939

Calculus
Instructions were evaluate the integral. (x/1-x^4) dx I know that this form is the tanh inverse 1/1-x^2 but not sure how to substitute and start this problem. Please Help.

Geometry
DEFG is a rectangle. H is the intersection point of the two diagonals. DH= 3x – 3 and EG = x + 44. Find the value of x and the length of each diagonal.

history
Using the acronym M.A.I.N. ( militarism , alliances , imperialism , nationalism ) Describe how tension rose in Europe during the early 1900s ?

Geometry
the ration if the side lengths of two similar rectangles is 4:3. what is the ratio of the areas of the rectangles?

Math
7) Use Pascal's Triangle to find the coefficients for (a + b)5 . I need help with this?

Probability and Statistics
For question 1, here's the numbers you use: {20, 18, 17, 19, 22, 29, 16, 27, 24}. 1. Calculate the 50th percentile. For questions 2 and 3 use this number line: {16, 17, 18, 19, 20, 22, 24, 27, 29, 80} 2. Calculate the z-score for the 80 & explain what it means. (Explain wh...

AP CHEMISTRY
What is the of a solution obtained by dissolving two extra-strength aspirin tablets, containing 594 of acetylsalicylic acid each, in 202 of water? The active ingredient in aspirin is acetylsalicylic acid , a monoprotic acid with Ka=3.3*10^-4 at 25 C. Can you provide the method...

AP CHEMISTRY HELP
Thank you so much. Also, would this same procedure be used for when there's an air bubble in the titration?

AP CHEMISTRY HELP
a) A student fails to wash the weighing paper when transferring the KHP sample into the beaker. What effect does this error have on the calculated molarity of the NAOH solution? Mathematically justify your answer. b) A student failed to notice an air bubble trapped in the tip ...

math
explian in writing how waould you use a number line to round 148 to the nerst ten

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