09/14/17

True or false: If a,b, and c are real numbers, and a<=b, then ac<=bc. Explain and give example

The a<=b is a is less then or equal to b. ac<=bc is ac less then or equal to bc. 

Which of the following functions correctly related the total height of the tower (including the bench) h, in inches to the number of blocks b?

A young child is building a tower of blocks on top of a bench. The bench is 18 inches tall, and each block is 3 inches tall.

09/14/17

Explain why the following pair is not equal: (3x)^-1≠(3)/(x)

Give reasons to why it is not equal. The -1 is a negative and the (3)/(x) is actually 3 over x

09/14/17

is it possible to have |a| = -a for a nonzero real number a? Explain and give an example.

Please give step by step in words like you would to a class and give examples. Thank You!

09/12/17

a solar water heater costs about $5400 to install (after rebates).

A traditional gas water heater costs about $900, and costs about $400 per year to run. The average annual cost to run the solar water heater is about $80. Create total cost functions for each of... more

A has an expected return of 10%

  If you have 2 assets: A has an expected return of 10% and has a standard deviation of 25%, B has an expected return of 8% and a standard deviation of 25%. For a portfolio with 1/2 weight in each... more

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