Sunday
May 19, 2013

# Posts by Natalie

Total # Posts: 415

Physics
From t = 0 to t = 5.00 min, a man stands still, and from t = 5.00 min to t = 10.0 min, he walks briskly in a straight line at a constant speed of 2.3 m/s. (a) What is his average velocity vavg in the interval 2.000 min to 7.90 min? I found this to be 1.15 m/s (b) What is his a...

Calculus
Find the derivative of y with respect to x. y= (lnx)/(3+4lnx) Should I start by using the quotient rule?

Calculus
Find the derivative of y with respect to x. y= [(x^5)/5]lnx-[(x^5)/25] How would I go about doing this? Should I use the product rule to separate (x^5)/5]lnx ?

math
The area of a square with a side length of s is s to the second power. What is the area of a square with a side length of 3 inches?

math
Thank You So Much Sam! :)

math
Use the “difference of squares” rule to factor the following expression 49-4y^2 my answer is going to be (7-2y)(7-2y) I wasnt sure if it could of been (7-2y)(7+2y)

Algebra
Andrew factored the expression 28x^3-42x^2+35x as 7x(4x^2+6x-5). But when Melissa applied the distributive law and multiplied out 7x(4x^2+6x-5) , she got 28x^3+42x^2-35x ; thus, Andrew’s solution does not appear to check. Why is that? Please help Andrew to understand this...

social studies
what was the cause of the boston massacure?

algebra
An online retailer had a sale that lasted 5 days. Approximately how many people visted the site during the sale? Assume that people who visited on more than one day were only counted once. Day 1 20,000 Day 2 25,000 Day 3 30,000 Day 4 25,000 Day 5 20,000

algebra
a celing in a new home rises 8 feet over a distance of 29 feet, Find the slope of this celing. round your answer to two decimals places.

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