Answer:
Step-by-step explanation:
in supplementary angle sum of two angles is always 180 degree
let another angle be x
x+151=180
x=180-151
x=29 degree
Answer:
ax2+bx+c
Step-by-step explanation:
A-2
B-3
C-1
-100+x^4, adding a negative is the same as subtracting, hope this helps. :)
It will take 0.556 seconds for an echo to reach one's ears
<h3>Calculating the time to hear an echo</h3>
From the question, we are to determine how long it would take an echo to reach one's ears
From the formula,
NOTE: To hear an echo, the sound will travel to and fro, hence, it will cover twice the distance
From the given information,
Distance = 92.0 m
NOTE: Speed of sound in air at 0 °C ≅ 331 m/s
Putting the parameters into the formula, we get
Time = 0.556 secs
Hence, it will take 0.556 seconds for an echo to reach one's ears.
Learn more on Calculating the time to hear an echo here: brainly.com/question/16676723
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Electromagnetic waves are waves which can travel through the vacuum of outer space.