Suppose a population consists of four elements, a, b, c, and d. the value of each element is as follows. population element a b c d value 15,000 22,000 25,000 40,000 to examine the confidence interval of the population mean, you select a random sample of size two. suppose you happen to select (c, d) as your sample. calculate the 95% confidence interval.

answer: idk

step-by-step explanation:

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

i saw this question before, dont know the asnwer srry

step-by-step explanation: