Answer:
The answer is C.
Step-by-step explanation:
Add 3 to both sides and you will get x/2=10. Multiply by the reciprocal on both sides making x=20.
Let's assume the frequency of sound be f and wave length is w.
Given that, the frequency of sound varies inversely as the wavelength.
So, we can set up an equation as following:
f*w = k Where k= constant of variation.
Other information is, the frequency of a musical note is 276 cycles per second when the wavelength is 1.2m.
So, next step is to plug in f = 276 and w = 1.2 in the above equation to get the value of k.
276 * 1.2 = k
So, k = 331.2
Next step is to plug in k = 331.2 in the above equation. So,
f * w = 331.2
Now we need to find the wave length : w when frequency : f = 600.
Therefore,
600 * w = 331.2
w = \frac{331.2}{600}
So, w = 0.552
Hence, the wave length is 0.552 m.
Hope this helps you!.
Answer:
Its the third one.
Step-by-step explanation:
I dont know what to write for the explanation but the other answers dont match up with the ratio. Hope this helps!
Answer:
7
Step-by-step explanation:
The median is the number in the middle of a data set.
For example, in this question 7 is in the middle of the data set, thus making it the median.
Answer: The equation is y= 1/3x-5
Step-by-step explanation: This is because y-intercept form is y=mx+b with m as the slope and b as the y-intercept. According to the graph, the y-intercept is -5. You can look at the points (0,-5) and (6,-3). The slope is change of y / change of x. -3 - -5 is 2. 6-0 is 6. Therefore, the slope is 2/6 or 1/3. Hence, the equation is y=1/3x-5
