A triangle has a perimeter represented by the expression 9x + 7 A square has a side length represented by 4x – 3.

Which expression represents the total perimeter of the two figures?

A) 20x

B) 4x2 + 9x – 5

C) 13x + 4

D) 25x – 5

D. 25x-5

Step-by-step explanation:

you need to add all the sides of the square to get 16x-12 and then add 9x+7 to get D.

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)

the probability that a bird is green (.30) is true

step-by-step explanation: