A rectangle has length of 6cm and width of 4cm. The rectangle is to be enlarged by a scale factor of 8

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

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

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables