False, the side across from the right angle is called the hypotenuse
What are u asking, sorry.
Answer:
1. C) 2/5 or 4.47 if 2/5 means 2 sqrt(5)
2. sqrt(68)
Step-by-step explanation:
1. using the pythagorean theorem
a^2 + b^2 = c^2
where a = distance AB = 4 b = BC = 2 and c = AC = ?
4^2 + 2^2 = c^2
16 + 4 = c^2
20 = c^2
take the square root of each side
sqrt(20) = c
sqrt(4) * sqrt(5) = c
2sqrt(5) = c
2. using the pythagorean theorem
a^2 + b^2 = c^2
where a = distance AC = 8 b = BC = 2 and c = AB = ?
8^2 + 2^2 = c^2
64 + 4 = c^2
68 = c^2
take the square root of each side
sqrt(68) = c
sqrt(4) * sqrt(17) = c
2sqrt(17) = c
did you forget to put the square root of B
Answer:
26.3 rev/min
Step-by-step explanation:
The angular velocity (ω) is the linear velocity divided by the radius ( r= 80 feet)
ω = 220/80 = 2.75 rad/s
The angular velocity and the frequency are related by:
ω = 2π*f
2.75 = 6.28*f
f = 2.75/6.28
f = 0.438 rev/s * 60s/1min
f = 26.3 rev/min
Answer:
A. Perpendicular
Step-by-step explanation:
When lines and/or points are in perpendicular to one another, the perpendicularity line between them measures the distance between both points and/or lines.
So to measure the distance between point c and line AB, a perpendicular line has to be drawn from c to AB or from AB to c. Either of these will arrive at the same result.
It should also be noted that the angle at the point of intersection of perpendicular lines is 90°.
