Answer:
-9i. if 6 plus 3 = 9 and the six was a negative plus a positive 3 it's -9 and the 3 had any I attached do it's -9i
Answer: I put them in order from the numbers on the picture
3.
1.
4.
2.
Answer:
..
Step-by-step explanation:
You could find out how much each letter equals then maybe times then together or add the.
Answer:
Net power = 20kW
B.) $128
Step-by-step explanation:
Given that :
Coefficient of performance = 2.5
Rate = 20kW
The net power required to operate the heat pump :
Energy delivery rate / Coefficient of performance
= 20kW / 2.5
= 8kW
B.) Given that electricity cost equals $0.08 per kW
If pump operates for 200 hours
Total energy used in kWhr :
8kW * 200= 1600kW
Cost per kW = $0.08
1600 * 0.08 = $128
powers of 10 or use e notation.
Example: 3.45 x 10^5 or 3.455
