Mathematics, 31.01.2022 04:00 qurreab26
One cold day last week the ice cream store sold 1 milk shake and 3 ice cream cones for a total of $7.50. It warmed up a bit a few days later and they sold 3 milk shakes and 5 ice cream cones for a total of $17.50. Which system of equations can be used to calculate the cost of each item
Answers: 2
Mathematics, 21.06.2019 17:40
Solve the given system of equations. 2y= -x+9 , 3x-6= -15
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Mathematics, 21.06.2019 19:00
Define multiplicative inverse. give an example of a number and its multiplicative inverse.
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, 22.06.2019 05:00
Hello i need with my math homework i don't understand can someone explain how this works
Answers: 3
One cold day last week the ice cream store sold 1 milk shake and 3 ice cream cones for a total of $7...
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