8x-6y=-18 = y=4x/3 +3 and 8x+7y=9 is 8x/7+9/7
Assuming
is differentiable over the interval (1, 5), by the mean value theorem we know that there is some
such that

We're given that
for all
, so

that is, the minimum possible value is 8, and the maximum possible value is 12.
Answer:
Step-by-step explanation:
a)
i)
<u>Use the law of cosines:</u>
ii)
<u>Use the law of sines:</u>
- sin ∠A / PB = sin ∠P / AB
- sin ∠A / 100 = sin 80 / 107.31
- sin ∠A = 100 sin 80 deg / 107.31
- sin ∠A = 0.92
- ∠A = arcsin 0.92
- ∠A = 67° (rounded)
iii)
<u>Bearing of B from A:</u>
b)
<u>PB is longer distance. Time to reach B:</u>
- t = d/s
- t = 100/20 = 5 hours
<u>The speed s of the slower ship:</u>
- s = d/t
- s = 60/5 = 12 km/h
The temperature was -12 degrees
Answer:
2698
Step-by-step explanation:First you take 1000 from 5000 and then distribute it to 395