The function f(x) = g(x), where f(x) = 2x – 3 and g(x) = x? - 5.
The table below shows the process of solving using successive approximations.
x f(x) g(x)
| 0
-3
-5
1
-1
-4
2
1 1 -1
2.5
2
1.25
Continue this process to find the positive solution to the nearest tenth.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

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An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.