The expression - 350 + 19m represents a submarine that began at a depth of 350 feet below sea level and ascended at a rate of 19 feet per minute. What was the depth of the submarine after 7
minutes?
Select the correct answer below and, if necessary, fill in the answer box to complete your choice.
A. The submarine was feet below sea level after 7 minutes.
OB. The submarine will have reached sea level after 7 minutes.

A. The submarine was 217 feet below sea level after 7 minutes

Step-by-step explanation:

-350+19(7)

-350+133

-217

Since the answer is negative, the submarine was bellow sea level.

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: