The highway fuel economy of a 2016 lexus rx 350 fwd 6-cylinder 3.5-l automatic 5-speed using premium fuel is a normally distributed random variable with a mean of 20.00mpg and a standard deviation of 2.00 (a) What is the standard error of X, the mean from a random sample of 36 fill-ups by one driver? standard error of X is 0.3333
(b) within what interval would you expect the sample mean to fall, with 99 percent probability? (round your answer to 4 decimals places.)
The Interval is from to

2 x t divided by n

step-by-step explanation:

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

answer: h=5.6 i don't really know how to put into words, so i though i would let you do that. i hope i was able to some

step-by-step explanation:

18 = 6(h)+1/2

18 = 6h+1/2

18-1 = 6h/2

17 = 3h

17/3 = h

h = 5.6