Which of the following principles of experimental design reduces errors due to chance by repeating an experiment on different subjects under different conditions?

What is 5 1/2 - 2 2/3?

Solve 12x + 6 > 9x + 12.

Five minus twice a number p equals six times another number q plus one. Solve for p

You by x packs of pencils, twice as many packs of erasers, and three times as many rolls of tape. Write an expression in the simplest form for the total amount of money you spent.

The top of a 22 foot ladder rests against the top of an 18 foot wall. If the base of the ladder is on the same ground level as that of wall, what angle does the ladder form with the ground?

There are nine players on a baseball team. How many different batting lineups are possible

Find the function that represents the greatest average rate of change from 0 to 5.

What is one reason that congress coins money? a. to control the laws regarding industry c. to control the state to state trade b. to ensure the tax charged in each state is equal d.

What is 15% of 60? create a model to prove your answer. in equivalent fractions

A person has 17 coins, all nickels and dimes, worth $1.25. How many nickels are there? a) 10 b) 8 c) 9 ... ?