Sunday
May 1, 2016

# Posts by Buzz

Total # Posts: 11

angle relationships
Suppose that angle J and angle K are complementary, and that the measure of angle J is 48 degrees, 26 minutes, 8 seconds. What is the measure of angle K?
February 9, 2016

geometry
findthe exact area of the region bounded by two concentric circles with a radii of 10 and 6 inches
May 18, 2013

geomerty
find the area of a circle circumscribed about a equalateral triangle whose side is 18 inches long
May 18, 2013

math
I'm assuming the question says f(x)=-x^2+5 in which case you substitute 4 in for x: f(4)=-(4)^2+5=-16+5=-11
February 11, 2011

Math
Integrate (sin^2(t)+1)/(cos^4(t))dt
February 11, 2011

Math
yes. It is a hyperbolic function with asymptotes at x = 0 and y = 0.
February 10, 2011

thanks for the correction the answer is 3800 otherwise that makes no sense. the question is asking for how many amphibians there are in the world and the 3400 represents 90% of all amphibians in the world. The answer can not be less then 3400 since thats not even logical.
February 10, 2011

3400/90% = 3777 round to nearest 100 so answer is: 3700
February 10, 2011

chemistry
ok and i had another question: convert the % elemental phosphorus(6.391%) to the % phosphorus present as phosphorous pentoxide (P2O5)
February 10, 2011

Chemistry
ok and i had another question: convert that to the % phosphorus present as phosphorous pentoxide (P2O5)
February 10, 2011

Chemistry
express this mass as a percentage of the weight of your sample of plant food. this is the % of elemental phosphorous in the plant food. I'm not sure what the question is asking for. The mass its referring to is 0.06438g Phosphorus and the weight of the plant food is 1.007g.
February 10, 2011

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