Question 4 of 25
2 points
which of these shows the result of using the first equation to...
Mathematics, 21.08.2019 20:30, babiea612
Question 4 of 25
2 points
which of these shows the result of using the first equation to substitute for y
in the second equation, then combining like terms?
y = 3x
3x + 2y = 18
a 6x = 18
b. 3x=18 c. 9x = 18
d. 3y = 18
Answers: 2
Mathematics, 21.06.2019 17:30, hiiliohi9433
One integer is 5 more than another. their product is 104. find the integers
Answers: 2
Mathematics, 21.06.2019 19:40, evarod
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
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