A rectangular fish tank measuring 12 inches long, by 15 inches wide and 18 inches high is filled with water. ONE FIFTH of the water SPILLS out, how many cubic inches are LEFT IN the tank?

I couldn't post it in here so I had to put it in a file hosting.

bit. ly/3a8Nt8n

Hope this helps!

there a lot dtill left trust

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq