A submarine is only allowed to change its depth by rising toward the surface in 60-meter stages. It starts off at -340 meters. 1) At what depth is it after:

a) 1 stage
m

b) 2 stages
m

c) 4 stages
m

eve and marks ratios are equivalent

step-by-step explanation:

the first option i believe

step-by-step explanation:

josh is incorrect

x= 7 and x= -1

step 2 is wrong and honestly first step is not needed, you just need to figure out the factors

i know its wrong because if you plug in the solutions josh found, they do not work (in the original equation)

x^2 -6x -7 = 0

(x-7) (x+1) = 0

x-7=0 x+1=0

x= 7 x= -1