Answer:
B
Step-by-step explanation:
Since p and v vary inversely then the equation relating them is
p =
← k is the constant of variation
to find k use the condition p = 8 when v = 40
k = pv = 8 × 40 = 320
⇒ p(v) =
→ B
Answer:
197.2 million
Step-by-step explanation:
The appropriate exponential equation for the population is ...
p(t) = 172.0e^(0.019t)
Then we can compute for t=7.2:
p(7.2) = 172.0e^(0.019·7.2) ≈ 172.0·1.146599 ≈ 197.2
7.2 minutes from now, the population will be about 197.2 million.
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For continuous growth (or continuous compounding), the exponential formula is ...
f(t) = (value at t=0)×e^(rt)
where r is the growth rate in one unit of time, and t is the number of time periods.
Answer:
x = 1
Step-by-step explanation:
Download photomath and you can find out.
2 + 3 - 4 + (5 · 4) = 5 - 4 + 20 = 1 + 20 = 21
The ends of the major axis is = (0, ± 13) and that of the foci is: (0,±5).
<h3>What is the axis and foci about?</h3>
The term 'foci' is known to be the point at which there is the coming together of light or any other kinds of electromagnetic radiation, particles, etc.
It is also seen as the point from which they seems to go apart.


Hence, major axis is = (0, ± 13)
e = 
= 5/13
Foci is: (0± 13 x
)
Foci is: (0, ±5)
Therefore, The ends of the major axis is = (0, ± 13) and that of the foci is: (0,±5).
Learn more about foci from
brainly.com/question/26250569
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