Answer:
Step-by-step explanation:
16.
RT=17.885
RS=9.741
Angle T=33°
17
AB=7.077
Angle B= 47.291°
Angle A= 42.709°
19
∠A = 180° - B - C = 1.36944 rad =
A=78.463°
Answer:
Step-by-step explanation:
I'm thinking cu
Answer:
y + 3 = (-1/2) x
Step-by-step explanation:
2x-y=-7
-y=-2x-7
y=2x+7
Slope m1= 2, perpendicular slope m2= -1/2
Equation of a line with perpendicular slope m2 and a point (0,-3) is
y - (-3) = (-1/2)(x - 0)
y + 3 = (-1/2) x
2y + 6 = - x
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
