And give details will report if no details

Sketch one cycle if the cosine function y=2cos2theta

Which number completes the inequality? 2/3 < _ < 7/9

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.