Asubmarine began a 120 feet below sea level and ascended at a rate of 13 feet per minute. what was the depth of the submarine after 6 minutes.

The submarine would be 900 below the ocean surface after 12 minutes assuming it started its descent at the surface of the ocean.

answer: this doesnt make any sense especially the photo.

step-by-step explanation:

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