Answer is 11w-6
Add all the like terms. So all with the w’s which is how I got 11 and then 6 stays the same hence the -6
Hit the mirrors and angle it to hit the target the laser will bounce from the mirror to the target
Answer:
432 square inches
Step-by-step explanation:
The 27 smaller cubes each have a dimension that is 1/∛27 = 1/3 the dimension of the larger cube. That is, each is a 2" cube. Their total surface area is ...
(27 cubes)(6 faces/cube)((2 in)²/face) = 648 in²
The painted surface area of the larger cube is ...
(6 faces/cube)((6 in)²/face) = 216 in²
Subtracting the painted cube area from the total cube area of the smaller cubes, we have an unpainted area of ...
648 in² -216 in² = 432 in² . . . unpainted area
X-intercepts are zeroes of the parabola.
(x-x1)(x-x2)=(x+1.6)(x+3.2)=x² +1.6x+3.2x+5.12=x²+4.8x+5.12
y=x²+4.8x+5.12, but the y-int. is (0, 25.6),
So, our parabola should look like
y=5(x²+4.8x+5.12)
y=5x²+24x+25.6