Scientists on a submarine are investigating earth's magnetic field.
the submarine is at a depth of feet when the scientists detect a signal frequency from the ocean floor. they dive farther down to a depth of feet to check the signal. the net change in their depth is
feet.

Net_change_in_depth  = 450/7 ft = 64 2/7 ft

Step-by-step explanation:

Missing info attached below

Depth_of_the_frequency_signal = -180 4/7  ft =  -1264/7 ft

Depth_of_the_submarine  = -116 2/7  ft =  -814/7 ft

Net_change_in_depth =

Depth_of_the_submarine  -  Depth_of_the_frequency_signal

Net_change_in_depth  =  -814/7 ft  -  (-1264/7 ft)

Net_change_in_depth  = 450/7 ft = 64 2/7 ft

-64 2/7 for PLATO users.

Step-by-step explanation:

The other guy was right, but he didn't put the negative sign because it was a net value.

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy