Robert J.

04/23/13

Light of wavelength 2400 x 10-10 m in air will become light of wavelength in glass (µ = 1.5) equal to

Light of wavelength 2400 x 10-10 m in air will become light of wavelength in glass (μ = 1.5)equal toA. 1600 x 10-10 m B. 7200 x 10-10 m C. 1080 x 10-10 m D. none of these

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Math

04/22/13

The 20th term of the series 2 x 4 + 4 x 6 + 6 x 8 ....... is

from maths .What is the 20th term? The 20th term of the series 2 x 4 + 4 x 6 + 6 x 8 ....... is

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Linear Algebra

04/22/13

cannot understand how to connect g(x) = (x-2)^2 to the correct graph

I'm trying to understand matching functions to their graphs. I've been given pictures of graphs and four functions. I am suppose to match each function to the correct graph.

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Averages

04/21/13

This is really confusing and nneds to be shown with how it was worked out.

I have what I think is right; but want to know if my calculations agree. Students in an English class took a final exam. They took equivalent forms of the exam at monthly inervals thereafter. The... more

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Geometry Surface Area Geometry Honors

04/21/13

A right rectangular prism has a total surface are of 512. If all of the edges are congruent, find the length of one of them

Help! I don't know how to start!

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Math

04/21/13

Find the shortest distance between the planes?

Find the shortest distance between the planes 2x+3y-z=2 and 2x+3y-z=4.

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Pharmacology,

04/18/13

#11 If 60 grams of 1% Ointment "L" is mixed with 80 grams of 2.5% Ointment "L", what is the % of Ointment "L" in final mixture?

I need the solution how to solve this problem.#11 If 60 grams of 1% Ointment "L" is mixed with 80 grams of 2.5% Ointment "L", what is the % of Ointment "L" in final mixture?

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Math

04/18/13

Help sovle

v^2+12/v^2-6v-27

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Logarithms

04/16/13

Simplify the logarithm

Simplify: [1/log xy(xyz)+1/log yz(xyz)+1/log zx(xyz)]

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Algebra 1

04/16/13

Hot Air Balloon

An object is dropped from a hot-air balloon 1296 feet above the ground. The height of the object is given by h=-16(t-9)(t+9) Where the height H is measured in feet, and the time T is measured in... more

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Equations

04/14/13

True or False? The integral from 0 to 2pi?

True or False? The integral from 0 to 2pi, from 0 to 4, from r to 4 dz dr dtheta represents the volume enclosed by the cone z=sqrt(x^2+y^2) and the plane z=4.

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