A soundproofing tile is made of 8 identical solid right pyramids with square bases. The length of the whole tile shown is x inches.

8 identical solid right pyramids with square bases are shown. The pyramids are lined up in 2 rows of 4. The length of 4 pyramids is x inches.

Which expression shows the area of the base of each pyramid?

(1/4 x) squared in^2

(1/3 x) squared in^2

(1/2 x) squared in^2

x2 in^2

I tried to input the image, but I couldn't figure out how. So if anyone knows let me know please.

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

the answer is two. hope this !

1. perpendicular

2. parallel

3. perpendicular