The skipper of a boat knows that the water is too shallow to bring his boat inside a danger semicircle that goes from lighthouse to lighthouse. How can the angle between his sightings of the two lighthouses help him decide when he is entering the danger zone?

melody used 3 as the value of pi to estimate the area of a circular patio that had a diameter of 26 feet. what is melody's estimate

A committee of 7 people is to be selected from a group of 17 people. How many different committees are possible if one is chair and the others general members

Schmidt (1994) conducted a series of experiments examining the effects of humor on memory. In one study, participants were shown a list of sentences, of which half were humorous and half were nonhumorous. Schmidt then measured the number of each type of sentence recalled by each participant....

Use equation 1/R= 1/R1 +1/R2 If R1 and R2 are increasing at rates of 0.3 Ohms/sec and 0.2 Ohms/sec, respectively, how fast is R changing hen R1= 80 Ohms and R2=100 Ohms?

Start with a blank Excel file and use 701 evenly

A high-tech company purchases a new computing system whose initial value is V. The system will depreciate at the rate f=f(t) and will accumulate maintenance costs at the rate g=g(t), where t is the time measured in months. The company wants to determine the optimal time to replace the...

The circumference of a sphere was measured to be 85.000 cm with a possible error of 0.50000 cm. Use linear approximation to estimate the maximum error in the calculated surface area

Business Math

if street lights are placed at most 145 feet apart, how many street lights will be needed for a street that is 4 miles long, assuming that there are lights at each end of the street? Note: 1 mile= 5280