Answer:
One solution
Step-by-step explanation:
Only one solution, as the lines intersect only at (-2,2).
The answer is D 44
Just have to plug in 8 to x and solve for f(x)
Answer: x=6
Step-by-step explanation:
2x+5= 17
-5=-5
(subtract 5 on both side)
2x=12
(divid 2 on each side)
x=6
<span>fo = 335 Hz</span>let fo = frequency heard
<span>f = actual frequency </span>
<span>v= speed of sound </span>
<span>vs = speed of source </span>
<span>For the first one, </span>
<span>fo = fv/(v - vs) </span>
<span>74.5 km/h = 20.69 m/s </span>
<span>vs = -20.69m/s since it is moving away from you </span>
<span>fo = (415Hz)(346m/s)/(346m/s - (-20.69m/s)) </span>
<span>fo = 392 Hz </span>
<span>For the second one, </span>
<span>fo = fv/(v - vs) </span>
<span>82.8 km/h = 23 m/s </span>
<span>vs = 23m/s </span>
<span>fo = (312Hz)(331m/s)/(331m/s - (23m/s))
</span>
Answer:
I don't know I'm sorry :( I wish I could help TwT
