PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!

12ft x 40ft

Step-by-step explanation:

We know that the perimeter is adding all of the sides.

We also know that our sides are as follows

Width=x

Length= 3x+4

We can add two of each (there are two length and two width on a rectangle) and we get

X + X + (3x+4) (3x+4)=104

Add like terms

8x + 8 =104

8x=96

Divide by 8 on both sides

X=12.

Again, the length is 3 times x plus 4.

Width= 12

Length= 40

12x40 feet

b

Step-by-step explanation:

correct answer:

i^31 = -i

g(x) = 3*(8(3^(x−2))+2)

g(x) = 24 (3^(x-2) )+6

the factor is 2

step-by-step explanation:

let f(x)=8(3^(x−2)+2)

to stretch a graph by 3, it would be 3f(x)

g(x) =3f(x)

g(x) = 3*(8(3^(x−2))+2)

g(x) = 24 (3^(x-2) )+6

x     −2     0     2     4     6

f(x) 1/64 1/16   1/4     1     4

1/64 * z * z = 1/16

i multiplies by z twice because it its 2 steps from -2 to 0

1/64 z^2 = 1/16

multiply by 64 to clear the fraction on the left side

1/4 * 64 z^2 =1/16 *64

z^2 = 4

take the square root of each side

sqrt(z^2) = ±sqrt(4)

z = ±2  

we are multiplying by 2 each time.