Write an arithmetic sequence that gives the nth positive x-intercept of the graph of f(x)=cos14x. Leave your answer in terms of π.

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?