Complementary angles
Explanation:
Completely angles are two angles that equal 90°
This is a perfect example of that
Answer:
The answer is 150, because 300 / 3 = 100, and 100 + 150 = 150.
I so understand that doesn't mean I so
The
equation of velocity of sound in air is v = 20 √(273 + t). In this problem, we
need to find the temperature when the velocity is 329 meters/s. You need
to measure the time it takes a sound to travel a
measured distance in order to measure its speed in air.
Given:
Velocity
of sound in air equation = v = 20 √(273 + t)
Velocity
= 329 m/s
To
solve:
V = 20 √(273 + t)
<span>
329 = 20 * sqrt(273 + t)</span>
<span>
16.45 = sqrt(273 + t)</span>
<span>
273 + t = 16.45^2</span>
<span>
t- 16.45^2-273</span>
<span>
t = -2.4 degrees Celsius</span>
<span>So, the
temperature when the velocity is 329 meters per second is -2.4 degrees Celsius.</span>
Combine like terms:
3 x 2 - 2x + 7 - 57 - 4x + 10
-34 - 6x
