6. The temperature was 0°F when Sue went to school on Monday. The temperature rose 20°F during the day, but fell 25°F during the night. A heat wave the next day increased the temperature 40°F. But an arotio wind overnight decreased the temperature 70°F! What was the
temperature after the 70* decrease?
"F

Me answer number 3plz explain how you do it

If the value of cos330°is√3/2 then find cos 165°.

The null and alternate hypotheses are: h0: μ1 ≤ μ2 h1: μ1 > μ2 a random sample of 22 items from the first population showed a mean of 113 and a standard deviation of 12. a sample of 16 items for the second population showed a mean of 99 and a standard deviation of 6. use the 0.01 significant level. find the degrees of freedom for unequal variance test. (round down your answer to the nearest whole number.) state the decision rule for 0.010 significance level. (round your answer to 3 decimal places.) compute the value of the test statistic. (round your answer to 3 decimal places.) what is your decision regarding the null hypothesis? use the 0.01 significance level.