Use the reciprocal and quotient identities to find LaTeX: \cos\thetacos ⁡ θ if LaTeX: \tan\theta=\frac{\sqrt[]{2}}{2}tan ⁡ θ = 2 2 and LaTeX: \sin\theta=-\frac{\sqrt[]{3}}{3}sin ⁡ θ = − 3 3 .

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i