Wednesday
May 22, 2013

Posts by peter

Total # Posts: 706

chemistry
I don/t know

Geometry
Sorry Steve, you made a major error with your units... the radius of the Earth is around 6378 km not 6378 miles. You are trying to find the distance from the Space Station to the horizon, which would be the point of tangency. The tangent line from the Space Station will form a...

calculus
At a quarry, sand is filling off a conveyor onto a conical pile at a rate of 15 cubic feet per minute. The diameter of the base of the cone is four times the height. At what rate is the height of the pile changing when the pile is 12 feet high?

Further maths
Y=x^3-6x^2+9x-4.calculate the average rate of change of y with respect to x.

math
What inverse operation is needed for the first step in solving the equation 12+5x=22? a. addition b. subtraction c> multiplication d. division

math
Xenia wants to stuff a cube-shaped footstool that measures 10.25 inches on all edges. What is a good estimate of the number of cubic inches of foam peanuts that she will need? a. just over 1,331 cubic inches b. just over 1,000 cubic inches c. just over 30 cubic inches d. just ...

calculus
A tank consists of a right circular cylinder at height (h)surmounted by a hemisphere at a radius (r) with an outlet atthe top. The tank is full of water at density ρkg/m3. Find the work required to empty thetank.

math
A recipe for one large cake calls for 3 2/3 cups of flour. Anya has decided to increase each ingredient in the recipe by 2 1/2. How many cups of flour does she need?

Social 30-1
that site doesnt work for me

Social 30-1
hello i am doing a recearch project on Hong Kong and one of the questions are: what are your countries Fiscal and monentary policies? i cant find them anywhere. if i could get your help that would be great!

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