Among 31- to 36-year-olds, 28% say they have written an editorial letter while under the influence of alcohol. suppose six 31- to 36-year-olds are selected at random. complete parts (a) through (b) below. (a) what is the probability that all six have written an editorial letter while under the influence of alcohol? (round to four decimal places as needed.) (b) what is the probability that none of the six have written an editorial letter while under the influence of alcohol? nothing (round to four decimal places as needed.)

idk

step-by-step explanation:

use that smart brain

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).