A sample of 800 computer chips revealed that 70% of the chips fail in the first 1000 hours of their use. The company's promotional literature claimed that 73% fail in the first 1000 hours of their use. Is there sufficient evidence at the 0.10 level to dispute the company's claim?

Find the slope of the line y =8/9x + 1.

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.

Jack has to solve the problem 281-266.how would you tell him to solve the problem ? tell which strategy you would use ,and solve the problem.