Mark M.

12/09/15

Radioactive Isotopes, Exponential Decay

The radioactive isotope 239Pu has a half-life of approximately 24100 years. After 1200 years, there are 3g of 239Pu. (1) What was the initial quantity? ____ g (2) How much of it remains after... more

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Converting Measurements

12/09/15

converting fluid ounces to millimeters

Please help!! Cough syrup comes in a bottle that contains 4 fl oz. How many millimeters is this?

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Math Calculus

12/07/15

A roast turkey is taken from an oven when its temperature has reached 185ºF and is placed on a table in a room where the temperature is 75ºF.

A roast turkey is taken from an oven when its temperature has reached 185ºF and is placed on a table in a room wherethe temperature is 75ºF. (a) If the temperature of the turkey is 150ºF after... more

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Functions

12/07/15

Finding the funtion

How do you find the function with the following points (1,9) (2,10.5), (3,13) (4,14.50)

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Imaginary Numbers Polynomial Functions Nth Terms

12/07/15

Find an nth degree polynomial with real coefficients satisfying the given conditions

n = 3 -4 and 2i are zeros f(-1) = -45 Find the expanded and simplified polynomial

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Algebra 2

12/07/15

relationship between the graph of a function and its inverse function

whats the relationship between the graph of a function and its inverse function

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Average Rate Of Change

12/07/15

Average rate of change

Show that the average rate of the change of the function f(X) = x^2 is greater than the average rate of change of the function f(X) =X on every interval [a,b] In [1,∞]. Is this true if we allow... more

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#polynomial #polynomials #factoring

12/07/15

How do I factor 18x^3-15x^2-4x+4?

This is for a project my teacher told me to factor it by using last over first, but I don't know how to do that.

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Struggling Student College Algebra Word Problem Final Tomorrow

12/07/15

Aplications of Rational Expressions

The difference of the reciprocal of a number and 5/9 is -41/90. Find the number.

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Math Help For College Struggling Student College Algebra Word Problem

12/07/15

Aplications of Rational Expressions

One copy machine can run off copies in 15 minutes. A newer machine can do the same job in 10 minutes. How long would it take the two machines, working together, to make all the necessary copies?

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Precal

12/06/15

square root of 3 sin(theta) +cos (theta) = 1

The answer is between 0 < or equal to theta< 2pi

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Math Calculus Precalculus

12/06/15

Evaluate the following integral.

Evaluate the following integral. ∫ x cos x dx

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Calc

12/06/15

Series converges or diverges

∞ ∑ (2n+3)/(n2+3n+1) n=0

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Precalculus Honors

12/06/15

sin^2x-cos^2=sinx

sin^2x-cos^2=sinx please answer

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Plain Geometry

12/06/15

What is the equation for a circle?

What is the equation for a circle in the coordinate plane whose center is at (-2, 5) and goes through thepoint (1, 5)?

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Solve For Indicated Variable

12/05/15

solve for the indicated variable

A=Ws/1-(1+z)-r solve for r /=devided by

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Ratios

12/04/15

An orange-lemon juice mixture can be made by mixing orange juice and lemonade in a ratio of 5 to 2.

How much lemonade should you use to make the juice mixture with 75 cups of orange juice?

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Natural Logs Logarithmic Equation Natural Logarithmic And Exponential Functions

12/04/15

Natural Logarithms

e9-4x = 7472 We need to express the solution in terms of natural logarithms, having both the EXACT answer and the DECIMAL APPROXIMATION.Somehow got the decimal approximation, but not the exact... more

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Math Calculus

12/04/15