Sound travels at 343 meters per second. You measured 3 seconds for sound travel from place A to place B. What is the distance be
2 answers:
Answer: 1029 meters
Step-by-step explanation:
Given: The speed of sound = 343 meters per second
The time taken by sound to travel distance from A to B = 3 seconds
We know that the formula to calculate distance is given by :-
Then , the distance between A and B is given by :-
Hence, the distance between A and B is 1029 meters.
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Answer:
1) shifts f(x) 4 units down = g(x) =
2) stretches by factor 4 = g(x) =
3) shifts f(x) 4 units right = g(x) =
4) compresses by factor 4 = g(x) =
Step-by-step explanation:
1)<em> When we have to move the function down by 4 units, subtract the whole function by -4, that is y -4.</em>
Thus, f(x) becomes g(x) = =
2) <em>When the function is stretched away from x axis, it means in Y direction.</em>
<em> Thus, when stretched 4 units in Y direction, the function becomes 4(f(x))</em>
= g(x) = =
3)<em>When we have to move the function right by 4 units, replace x with (x-4) in the function.</em>
Thus, f(x) becomes g(x) = =
=
4) <em>When the function is stretched towards y axis, it means in X direction.</em>
<em> Thus, when compressed 4 units in X direction, replace the x by 4x.</em>
= g(x) = =
Answer:
2π/3, 4π/3
Step-by-step explanation:
I interpret your question as asking us to solve the equation
2cos(x) + 1 = 0
2cos(x) = -1
cos(x) = -½x
x = arccos(-½), 0 ≤ x ≤2π
Since the cosine is negative, x must be in the second or third quadrant.
Referring to the unit circle, we find that
x = 2π/3 (120°) or x = 4π/3 (240°)
