Answer:
hello :
If f(x)=x-2 and g(x)=1/2x,
g(f(x)) = g ( x - 2 )
= 1/2(x-2)
g(f(x)) = (1/2)x - 1

now, the first one, on the far-left.... can't see the height.. but I gather you do, now as far as its Base area, well, the bottom is just a 12x12 square, so the area of its base is just 12*12
now, the middle pyramid, has a height of 6, the base is also a square, 8x8, so the Base area is just 8*8
now the last one on the far-right
has a height of 8, the Base is a Hexagon, with sides of 6
Quadratic equations are equation that has degree of 3. The value of x from the quadratic equation is 3
<h3>Factorizing the quadratic equation</h3>
Quadratic equations are equation that has degree of 3. Given the following equation;
5x²-11x = 1
Equate to zero
5x²-11x - 1 = 0
Find the solution using quadratic solution

Hence the value of x from the quadratic equation is 3
Learn more on function here: brainly.com/question/1214333
#SPJ1
To find the area of a prism, you calculate the area of the cross-section and multiply that number by the length. The cross-section of this prism is a trapezium, and the formula for this is

.
Insert your given numbers to find out the area of this prism's cross-section:

Now, multiply 90 by the length, 10cm, to find out the volume of the prism;
90×10=900cm³
Therefore, your answer id the third option.