A function associates a value from a set (domain) one and only one value from another set. IE, from the same x value you can have only one y. So pick a ruler and scan each graph parallel to the Y axis. If you touch the blue line in two points, that's not a function.
Answer:
A
Step-by-step explanation:
the point is at positive 8 and none of the other answers have positive 8
The answer is north, the Polaris is located north from the celestial equator.
If you go as far north as the North Pole, you'll see Polaris directly overhead. As you travel south, Polaris drops closer to the northern horizon. If you get as far as the equator, Polaris sinks to the horizon. South of the equator, Polaris drops out of the sky.
Answer:
I think 318
Step-by-step explanation:
Answer:
The constriction is 13.94 m high from point A
Step-by-step explanation:
When we apply energy relation between point A and point B, we get:
Pb/ρg + Vb²/2g= Pa/ρg + Va²/2g - Head Loss - h
where,
Pb = Pressure at constriction (B) = 180.3 KPa = 180300 Pa
Vb = Velocity at constriction (B) = (0.3 m³/s)/π(0.15 m)² = 4.24 m/s
Pa = Pressure at (A) = 345 KPa = 345000 Pa
Va = Velocity at (A) = (0.3 m³/s)/π(0.3 m)² = 1.06 m/s
g = 9.8 m/s²
ρ = density of water = 1000 kg/m³
Head Loss = 2 m
h = Height of constriction = ?
Therefore:
h = (Pa- Pb)/ρg + (Va² - Vb²)/2g - Head Loss
h = (345000 Pa - 180300 Pa)/(1000 kg/m³)(9.8 m/s²) + [(1.06m/s)² - (4.24 m/s)²]/2(9.8 m/s²) - 2 m
h = 16.8 m - 0.86 m - 2 m
<u>h = 13.94 m</u>