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Reika [66]
3 years ago
15

The bat population in a certain Midwestern county was 270,000 in 2012, and the observed doubling time for the population is 34 y

ears.
Mathematics
1 answer:
Lena [83]3 years ago
3 0
What’s the question?
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Help me please with this question please .
miss Akunina [59]
If we split this shape into 2 rectangles, we have 2 rectangles that each measure 10m x 20m x 200cm.  200 cm = 2 m.  Volume is found by multiplying length times width times height.  We have 2 shapes so we will have 2 volumes that we will add together to get a total volume.  10*20*2=400 m cubed.  Two of those is 800 m cubed. 
5 0
4 years ago
Find the differential of each function. (a) y = tan( 5t ) dy = Correct: Your answer is correct. (b) y = 5 − v2 5 + v2
Trava [24]

Answer:

(a)  dy = 5sec^2(5t) \ dt

(a) \ dy = \frac{-20v}{(5+v^2)^2} \ dt

Step-by-step explanation:

Given;

(a) y = tan(5t)

(b) \ y = \frac{5-v^2}{5+v^2}

Solving for (a)

y = tan(5t)

let u = 5t          

⇒y = tan(u)

du/dt = 5

dy/du = sec²u

\frac{dy}{dt} =\frac{dy}{du} *\frac{du}{dt} \\\\\frac{dy}{dt} = sec^2(u)*5\\\\\frac{dy}{dt} = 5sec^2(u)\\\\\frac{dy}{dt} = 5sec^2(5t)

dy = 5sec^2(5t) \ dt

Solving for b;

let u = 5 - v²

du/dv = -2v

let v = 5+ v²

dv/du = 2v

\frac{dy}{dv} = \frac{vdu - udv}{v^2} \\\\\frac{dy}{dv} = \frac{-2v(5+v^2) - 2v(5-v^2)}{(5+v^2)^2}\\\\\frac{dy}{dv} = \frac{-10v-2v^3-10v+2v^3}{(5+v^2)^2}\\\\

\frac{dy}{dv} = \frac{-10v-10v}{(5+v^2)^2}\\\\\frac{dy}{dv} = \frac{-20v}{(5+v^2)^2}\\\\dy = \frac{-20v}{(5+v^2)^2} dt

4 0
3 years ago
Need help with 7 and 8 please
iren2701 [21]

7 is “what was our opinion of the experiment and results?”

8 is “random”

3 0
4 years ago
Read 2 more answers
(15-3)÷12+1<br>How to divide this without using a remainder?​
Julli [10]

Answer:

If you solved this, it wouldn't have a remainder. First you would solve the numbers in the parenthesis, (15 - 3), which is 12. Now it should look like, 12 ÷ 12 + 1. Next you divide 12 by 12 and that equals 1. And all you need to do now is add 1 + 1, which is 2. So your answer will be 2.

8 0
3 years ago
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How can u tell that 7.360 and 7.36 are equivalent decimals
Degger [83]

Answer:

You can tell 7.360 and 7.36 are equivalent decimals because when you put a zero in the decimal places, it doesn't count as a number and it doesn't have a value. In conclusion, zero is just a placeholder. Therefore, if you have the zero or not it doesn't matter.

3 0
4 years ago
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