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Use dimensional analysis to make the conversion. Enter your answer with the correct number of significant digits. Use the equivalent measures indicated.

A carpet costs $19 per square foot. (When calculating the price, any fraction of a square foot is counted as a whole square foot.) If the area you want to carpet is 19.7 square meters, how much will it cost to buy the carpet? (1 m ≈ 3.28 ft)

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?