A rock is thrown upward with a velocity of 25 meters per second from the top of a 49 meter high cliff, and it misses the cliff on the way back down. When will the rock be 8 meters from ground level?

positive

step-by-step explanation:

the quadrant is facing upwards

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

if you was gonna solve for a, a is a   < -12

answer: x=60