Express the terms of the following geometric sequence recursively. 7 , 14 , 28 , 56 , 112 , ...
1 .t1 = 7 and tn = 2(tn-1) - 7, for n > 2
2. t1 = 7 and tn = tn-1 + 7, for n > 2
3. t1 = 7 and tn = tn-1 + 2n, for n > 2
4. t1 = 7 and tn = 2(tn-1), for n > 2

Which statement about the relative areas of ? abc and ? xyz is true? the area of ? abc > the area of ? xyz the area of ? abc < the area of ? xyz the area of ? abc = the area of ? xyz more information is needed to compare.

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3

If sin(x) = 0 and cos(x) = 1, what is tan(x)?