At 8: 00 a. m., the outside temperature was –16°. by 9: 00 a. m., the outside temperature had dropped 6.5°. what was the outside temperature at 9: 00 a. m.? a. 22.5° b. 9.5° c. –9.5° d. –22.5°

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me

What is ha theorem a special case of?