There is no lcm because 2 is the least common multiple already
Answer:
- plane: 550 mph
- wind: 50 mph
Step-by-step explanation:
If p and w represent the speeds of the plane and wind, respectively, the speed into the wind is ...
p - w = (3000 mi)/(6 h) = 500 mi/h
And, the speed with the wind is ...
p + w = (3000 mi)/(5 h) = 600 mi/h
Adding these two equations gives us ...
2p = 1100 mi/h
p = 550 mi/h . . . . . . . divide by 2
Then the wind speed is ...
w = 600 mi/h - p = (600 -550) mi/h
w = 50 mi/h
The rate of the plane in still air is 550 mi/h; the rate of the wind is 50 mi/h.
BA is tangent to circle O to BA perpendicular to OA
given :BA = 15, OB = 17
a^2 = c^2 - b^2
a^2 = 17^2 - 15^2
a^2 = 289 - 225
a^2 = 64
a = 8
OA = OC = 8
answer
radius of circle O = 8
Answer:
Step-by-step explanation:
a = -3
Factor out the common term 3.
Cancel 3.
Subtract <em>a</em> from both sides.
Simplify 1 + 2a - <em>a </em>to 1 + a
Subtract 1 from both sides.
Simplify -2 - 1 to -3
Switch sides.
