2x+5y=619
x=10y-3
________
2(10y-3) +5y=619
20y-6+5y=619
25y=619+6
25y=625
y=625/25
y=25
x=10*25-3
x=250-3
x=247
To find positive coterminal angle we have to add 360 and to find negative coterminal angle, we have to subtract 360 degree.
a. 150 degree
Positive coterminal angle
Negative coterminal angle
b.-420 degree
Positive coterminal angle
negative coterminal angle
Answer:
4.3155 kW
Step-by-step explanation:
Given,
speed of wind when enters into the turbine, V = 12 m/s
speed of wind when exits from the turbine, U = 9 m/s
mass flow rate of the wind = 137 kg/s
According to the law of conservation of energy
Energy generated = change in kinetic energy
Hence,energy generated in 1 sec can be given by
= 4315.5 J
So, the power generated in 1 sec will be given by
= 4315.5 W
= 4.13 kW
So, the power generated will be 4.13 kW.
Answer:
C- $1.70
Step-by-step explanation:
First, put the numbers in order from least to greatest. You then need to separate the numbers in the middle. The middle numbers are 1.65 and 1.75.
You then need to find the number that is in between 1.65 and 1.75 that is common and stays the same. The middle number would be 1.70, so that's your answer.