Friday

December 19, 2014

December 19, 2014

Total # Posts: 26

**math**

An artifact was found and tested for its carbon-14 content. If 79% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? (Carbon-14 has a half-life of 5,730 years.)
*June 6, 2013*

**math**

a boy is walking at dusk and notices his shado from a nearby street light. the boy is 5 feet tall and the street light is 12 feet above the ground. When the boy is 4 feet from the base of the street light how long will his shadow be?
*April 1, 2013*

**physics**

prob 11: its a=3/5 as the probability of occurrence of |0> is 9/25 with normalisation, we find out b=4/5
*February 12, 2013*

**math**

thanks so much!
*April 30, 2012*

**math**

simplify 5+ 1/3x1/3x1/3-(1/9+1/9)
*April 30, 2012*

**math**

Simplify 2 3/18 + 5 3/12 - 4 2/4
*April 30, 2012*

**math**

5/22 - 1 /41 then reduce
*April 30, 2012*

**math**

Solve: Eighty people were invited to vote in thr extension club's elections and 9/10 of them voted. How many people voted in the elections?
*April 30, 2012*

**math**

Statistics: Analyze student exam scores Students were given an exam with 300 multiple choice questions. The distribution of the scores were normal and the mean was 195 with a standard deviation of 30. you may find it helpful to draw out this distribution before answering the ...
*March 21, 2012*

**finance**

A speculator sells a stock short for $55 a share. The company pays a $2 annual cash dividend. After a year has passed, the seller covers the short position at $45. What is the percentage return on the position (excluding the impact of any interest expense and commissions)? ...
*January 30, 2012*

**Science**

which of these two methyl orange and phenolphthalein gives more reliable and consistent results in the titration of H3PO4 with NaOH
*October 26, 2011*

**PSY 285**

how can social cognition may both positively and negatively affect one's attitudes and behaviors?
*July 25, 2011*

**physics**

A weight of 30.0 N is suspended from a spring that has a force constant of 180 N/m. The system is undamped and is subjected to a harmonic driving force of frequency 11.0 Hz, resulting in a forced-motion amplitude of 5.00 cm. Determine the maximum value of the driving force. ...
*January 28, 2011*

**12th grade**

Find altitude of isosceles triangle if angle=53 degrees and base is 8 inches.
*December 2, 2010*

**trig**

Find altitude of isosceles triangle if angle=53 degrees (the equal angles) and the base is 8 inches.
*December 2, 2010*

**Math**

Find altitude of isosceles triangle if è=53 degrees (the equal angles) and the base is 8 inches.
*December 2, 2010*

**12th grade**

Angle elevation of sun is 25 degrees. Find the length the shadow cast by a tree 41 feet tall.
*December 2, 2010*

**French**

je sais faire la tarte aux pommes
*January 11, 2010*

**physical science**

What is a compound that has water chemically attached to its ions?
*May 19, 2008*

**Need website showing regional cultural differences**

world regions, thank you!
*November 10, 2007*

**Need website showing regional cultural differences**

a table would be great!
*November 10, 2007*

**BUSINESS MATH**

Keeping track of how much it costs to have a horse, per month: board, food, wormer, farrier work, etc.
*November 3, 2007*

**Math Fractions Vocabulary**

What is "one of two numbers whose product is one". It's in a crossword, 21 letters, 4th letter is "T". Please help!
*November 2, 2007*

**History - Common Sense Thomas Paine**

Why would the colonists loyal to the British object to Thomas Paine's Common Sense?
*November 1, 2007*

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