12 shirts per clothing rack
Answer:
The ratio of the length opposite to the side of the triangle whose angle is opposite to the length of the hyptoneuse.
<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:
see the explanation
Step-by-step explanation:
Let
x ----> number of usage days
y ---> the total charge monthly in dollars
we know that
The linear equation in slope intercept form is equal to
where
m is the slope or unit rate
b is the y-intercept or initial value
In this problem we have
substitute
we have the ordered pair (13,41)
For x=13 usage days
therefore
That means----> Total charge in one month for 13 days of use is $41
