Answer: -231 ft
<u>Step-by-step explanation:</u>
The submarine started at sea level = 0
It submerged 140 ft = -140 ft
It traveled 40 miles horizontally so it is still at -140 ft
It dove down an additional 120 ft = -260 ft <em>(-140 + -120)</em>
It traveled 25 miles horizontally so it is still at -260 ft
It rose 29 ft = -231 ft <em>(-260 + 29)</em>
Note: submerged and dove are negative values and rose is positive
0 - 140 - 120 + 29 = -231
This question can be found using the distance formula. This formula can be written as d=sqrt((x2-x1)2+(y2-y1)2). I’d advise looking up the formula, as mobile wont let me format the exponents. Plug in your values, and you should get d=sqrt(3481+3136). Simplify this, and you will get d=sqrt(6617).
Answer:
6b+b^2 (b to the 2nd power)
Step-by-step explanation:
8b+b^2-2b (b to the 2nd power)
(8b-2b)+b^2
6b+b^2
Hopefully this helps :)
