An engineer is testing an experimental engine for its efficiency. The engineer runs the
engine
under load and measures its output at intervals of thours. At the beginning of the test the
engine was outputting 2900 watts. At the first interval the engine was down to 2892.75
watts. Write an exponential decay formula to model this situation.

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?