During an emergency exercise, a submarine dives 37 ft, rises 16 ft, and
then dives 18 ft. The net change in the submarine's position = - 37 + 16 - 18
Net change is the difference between a security's closing price for a given trading period and its closing price for the current trading session. The term "net change" for stock prices often refers to a daily time frame, therefore the net change for the specific day in question might be either positive or negative.
Therefore, the net change = -39 ft.
What is a net change?
- Net change is the difference between the quantity of a variable at the end state and the starting state.
- For example, start with some number. Add 10 to it, subtract 5 from it, again add 7, then subtract 16.
- The net change will be 10 + 5 + 7 - 16 = 6
- Whatever number you have started with, the result is 6 more.
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<em>x =1/3</em>
- Step-by-step explanation:
<em>25ˣ⁺¹ = 125/5ˣ</em>
<em>5²⁽ˣ⁺¹⁾ = 5³/5ˣ</em>
<em>5²⁽ˣ⁺¹⁾ = 5³ : 5ˣ</em>
<em>5²⁽ˣ⁺¹⁾ = 5³⁻ˣ</em>
<em>2(x + 1) = 3 - x</em>
<em>2x + 2 = 3 - x</em>
<em>2x + x = 3 - 2</em>
<em>3x = 1</em>
<em>x = 1/3</em>
Answer:
- plane: 550 mph
- wind: 50 mph
Step-by-step explanation:
If p and w represent the speeds of the plane and wind, respectively, the speed into the wind is ...
p - w = (3000 mi)/(6 h) = 500 mi/h
And, the speed with the wind is ...
p + w = (3000 mi)/(5 h) = 600 mi/h
Adding these two equations gives us ...
2p = 1100 mi/h
p = 550 mi/h . . . . . . . divide by 2
Then the wind speed is ...
w = 600 mi/h - p = (600 -550) mi/h
w = 50 mi/h
The rate of the plane in still air is 550 mi/h; the rate of the wind is 50 mi/h.
Answer:
Common ratio r = 2
Step-by-step explanation:
the fith term of a G.P is 8 times the 2nd term.
Hence, common ratio is 2.
