Mathematics, 12.07.2019 17:30 Theresab2021
Wolfrich lived in portugal and brazil for a total period of 14 months in order to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total, he learned 1920 new words. how long did wolfrich live in portugal and how long did he live in brazil? wolfrich lived in portugal for months and lived in brazil for months
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Mathematics, 21.06.2019 17:30
Aplot of land is shaped like a quadrilateral. fences are built on the diagonal to divide the area into 4 sections. what is vi to the nearest tenth? gv = 6.55fv = 5.84vh = 3.27vi = ?
Answers: 1
Mathematics, 21.06.2019 18:30
The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?
Answers: 3
Mathematics, 21.06.2019 18:50
The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9
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
Wolfrich lived in portugal and brazil for a total period of 14 months in order to learn portuguese....
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