In 2008, a school's enrollment was 400 students. In 2012, the school's enrollment was 640 students. Which linear model represents the school's enrollment, s, as a function of t, the number of years after 2005?

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to

How do i multiply two digit numbers

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.