Mathematics, 27.06.2019 00:30 annabanana1298
Agirl starts to walk to her school, which is 20 miles away, at 6: 50 and at a rate of 3 miles per hour. after a while, her dad picks her up and drives her through the remainder of the way at 30 miles per hour. if they arrived at school at 9: 00, how far did she walk? show work
Answers: 1
Mathematics, 21.06.2019 19:00, katherinemartinez173
Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2
Answers: 1
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
Mathematics, 21.06.2019 22:40, zmzmzmzmz2975
If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).
Answers: 1
Agirl starts to walk to her school, which is 20 miles away, at 6: 50 and at a rate of 3 miles per ho...
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