Thursday
May 23, 2013

# Posts by tiffany

Total # Posts: 705

Account Recievables
You notice that your accounts receivable days outstanding has doubled in the first 6 months. Do you give someone a bonus or put him or her on probation? Why?

Chemistry
Give the formula of each of the following copper minerals: A. cuprite, copper (I) oxide B. chalcocite, copper (I) sulfide C. covellite, copper (II) sulfide

Chemistry
heptane and water do not mix, and heptane has a lower density (0.684g/mL) than water (1.00g/mL). A 100mL graduate cylinder with an inside diameter of 3.10 cm contains 39.90g of heptane and 34.00g of water. What is the combined height of the two liquid layers in the cylindar? I...

Chemistry
the answer that I got once I multiply it is 51.3

Chemistry
would you multiply 0.789 x 65.0?

Chemistry
What is the mass of 65.0mL of ethanol? the density of ethanol at room temperature=0.789g/mL

calc
If f (3) = 9 and f ´(3) = 4, find the tangent line to the graph of f when x = 3.

CALC
The radius in meters of a circular oil slick increases at a rate of (12 - 0.3t), where t is measured in hours. Which of the following expressions would calculate the rate at which the area of the oil slick is increasing when the radius is 100 meters?

CALC
Find the tangent line to the ellipse defined by 3x^2 + 5y^2 = 17 at the point (-2, 1).

chemistry
Which of the following statements is (are) true about a compound that has a molecular ion peak in its mass spectrum at mass 94, and shows prominent peaks in its IR spectrum at 3600–3200 and 1600 cm–1? A) The compound has a molecular mass of 94. B) The compound contai...

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