7. a number of minor automobile accidents occur at various high-risk intersections in teton county despite traffic lights. the traffic department claims that a modification in the type of light will reduce these accidents. the county commissioners have agreed to a proposed experiment. eight intersections were chosen at random, and the lights at those intersections were modified. at the .01 significance level, is it reasonable to conclude that the modification reduced the number of traffic accidents?

Which of these people has balanced their checkbook correctly? oa. gary: the balance in his check register is $500 and the balance in his bank statement is $500. b. gail: the balance in her check register is $400 and the balance in her bank statement is $500. c. gavin: the balance in his check register is $500 and the balance in his bank statement is $510.

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.