Mathematics, 23.04.2021 21:30 xojade
The amount of time a certain brand of light bulb lasts is normally distributed with a
mean of 1800 hours and a standard deviation of 85 hours. Using the empirical rule,
what percentage of light bulbs last between 1630 hours and 1970 hours?
12 points
Answers: 2
Mathematics, 21.06.2019 20:30
26) -2(7x) = (-2 • 7) x a. associative property of addition b. associative property of multiplication c. commutative property of multiplication d. commutative property of addition
Answers: 1
Mathematics, 22.06.2019 01:00
Pentagon abcde is dilated according to the rule do,3(x,y) to create the image pentagon a'b'c'd'e', which is shown on the graph. what are the coordinates of point a of the pre-image? a) (-1, 1)b) (-1, 2)c) (-9, 6)d) (-9, 18)
Answers: 3
The amount of time a certain brand of light bulb lasts is normally distributed with a
mean of 1800...
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