Test-retest reliability is determined by: Group of answer choices administering the same measure to the same sample at two different points in time and calculating the correlation between an individual's performance on the two administrations. correlating the odd numbered items of a measure with an individual's performance on the even numbered items of a different measure. correlating the odd numbered items of a measure with an individual's performance on the even numbered items of that same measure. administering the same measure to two different samples at two different points in time and calculating the correlation between an individual's performance at the two different times

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).