Tìm khoảng ước lượng của kì vọng µ với độ tin cậy 0,92 trong mẫu từ phân phối chuẩn N(µ; 2), 2 = 12. Cho X = 19, n = 121

i'm not entirely sure

step-by-step explanation:

if you ask home depot or lowe's they might be able to you out

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb