230 180 A
DEL
25. Physics The roller coaster car
shown in the diagram takes 23.5 s
to go up the 23° incline AĦ and
only 2.8 s to go down the drop
from H to C. The car covers hori-
zontal distances of 180 ft on the
incline and 60 ft on the drop.
a. How high is the roller coaster above point B?
b. Find the distances AH and HC.
e. How fast (in ft/s) does the car go up the incline?
d. What is the approximate average speed
of the car as it goes down the drop?
(Assume that the car travels along HC.
Since the actual path is longer than HC,
is your approximate answer too big or
too small?)

for any of you who need the translation here it is

step-by-step explanation:

find the angular size of the equatorial radius of the earth, if the horizontal parallax of the sun

what are the statements

step-by-step explanation:

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

connie < felicia < stew

step-by-step explanation:

stew:

we need to find the slope

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

    = (2650-795)/(10-3)

    = 1855/7

265 words per minute

connie:

we need to find the slope

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

we have two points (0,0) and (4,800)

m = (800-0)/(4-0)

  m = 800/4

    200 words per minute

felicia:

260 words per minute

200< 260 < 265

connie < felicia < stew