Answer:
Step-by-step explanation:
We know that for two similar matrices 
and 
exists an invertible matrix 
for which
![[tex]B = P^{-1} AP](https://tex.z-dn.net/?f=%5Btex%5DB%20%3D%20P%5E%7B-1%7D%20AP)
[/tex]
∴ 
Also 
and 
∴
so, 
Answer:
sry I just wanted the points I'm in middle school so I don't know this stuff either but can you give free brainlyest I'm soo close to my next rank I'd really appreciate it if you would
<span>1. How much heat is absorbed by a 50g iron skillet when its temperature rises from 10oC to 124oC? Joules
Formula: Heat = mass * specific heat * ΔT
Data:
mass = 50 g = 0.050 kg
specific heat of iron = 450 J/ kg °C
ΔT = 124°C - 10°C ¿ 114 °C
=> heat = 0.050kg * 450 J / kg°C * 114°C ≈ 2.6 J
2. If a refrigerator is a heat pump that follows the first law of
thermodynamics, how much heat was removed from food inside of the
refrigerator if it released 492J of energy to the room? Joules
The firs law of thermodynamics is conservation of energy => energy removed from inside of the refrigerator = energy released to the room
=> Answer = 492 J
3. How much heat is needed to raise the temperature of 45g of water by 63oC? Joules
Formula: heat = mass * specific heat * ΔT
specific heat of water = 4186 J / Kg °C
heat = 0.045 kg * 4186 J/kg °C * 63°C = 11,867.31 J
</span>
Answer:
5 (d)
Step-by-step explanation:
2(6+4) - 3(5)
2× 10 - 25
20-15 = 5
I hope this helps you.
213+497=710 total students, so 213 wore a silly hat so that would be 30% wore the silly hats
