Which expressions are equivalent to -90 - 60w? Choose three. *Hint: On each answer choice below, use the distributive property to decide which ones match -90-60w. Also remember that -60w-90 is equivalent to -90-60w a) -30(3 + 2w) b) (-9 − 6w) x 10 c) -3(30 - 20w) d) (6 + 4w) × 15 e) −20(4.5 + 3w)

a), b), e)

Step-by-step explanation:

a) -30(3 + 2w) = -90 - 60w

b) (-9 − 6w) x 10 = -90 - 60w

c) -3(30 - 20w) = -90 + 60w

d) (6 + 4w) × 15 = 90 + 60w

e) −20(4.5 + 3w) = -90 - 60w

rx and sx

step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)