Diego is 8 years older than 3 times Sofia’s age. If Sofia is y years old, which expression represents Diego’s age? A) (8 × 3) + y
B) 8 + 3 + y
C) 3(8 + y)
D) 3y + 8

D

Step-by-step explanation:

We know that Y represents Sofia's age

Diego is 8 years older than 3 times Sofia's age

means to get Diego's age we have to multiply Sofia's age by 3 and add 8

i belive those are the ones that are under 90 degreese.

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)