Mathematics, 14.07.2020 01:01 bxbykyah
Sam was building a suspension bridge for the playground at an elementary school and needed some chain link and rope. He bought a total of 80 feet of materials. The chain link cost $2.00 per foot, and the rope cost $1.50 per foot. He spent a total of $135. How much of eacb did he buy?
Answers: 2
Mathematics, 21.06.2019 16:20
Taking algebra two apex courses and need with these questions
Answers: 1
Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
Mathematics, 21.06.2019 23:30
Write an inequality for this sentence the quotient of a number and -5 increased by 4 is at most 8
Answers: 1
Sam was building a suspension bridge for the playground at an elementary school and needed some chai...
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