Determine which ratio forms a proportion with 10/6 by using cross products. a) 15/12 b) 30/9 c) 20/9 d) 30/18

D.

Step-by-step explanation:

Multiply the numerator of one ratio with the denominator of the other. If the products are equal, then the ratios are proportional.

A)

∴ NOT proportional

B)

∴ NOT proportional

C)

∴ NOT proportional

D)

∴ PROPORTIONAL

days of the week

step-by-step explanation:

javier earned more money then kyle, so that won't always be a constant term, but the days of the week do not change so that term is always constant.

edit: i meant

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11