700,000 is the value of the digit
Answer:
x = 65, y = 63
Step-by-step explanation:
∠ EGA = ∠ HBG = 52° ( corresponding angles )
ED is a straight angle, thus
52 + y + 65 = 180, that is
y + 117 = 180 ( subtract 117 from both sides )
y = 63
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∠ HGB = y = 63° ( vertical angles )
The sum of the 3 angles in a triangle = 180°, thus
x + 63 + 52 = 180
x + 115 = 180 ( subtract 115 from both sides )
x = 65
<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))
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