At brighton middle school, mr. yule asked 50 randomly selected students from each grade level about their favorite subject, and 12 chose science. he used this data to draw the inference that about 25% of middle school students will indicate science is their favorite subject. if there are 200 students altogether, did he make a reasonable inference? no, mr. yule's sample is biased and too small to be representative of the population. yes, mr. yule's sample is small and biased, so it is representative of the population. no, mr. yule's percentage is too large. he should have used 6%. yes, mr. yule's sample is random and representative of the population.

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

idk lol xd

step-by-step explanation:

ez do it yourself lazy

3.73 * 10^7 is the anser for ttm ur welcome < 3

step-by-step explanation:

mrbilldoesmath!

answer: a parabola

steps:

(x-1)(x+4)   = x(x+4) - 1(x+4) = (x^2 + 4x) - (x+4)

                = x^2 +4x -x -4   = x^2 +3x -4

which is a parabola

mrb