A straight highway is 100 miles long, and each mile is marked by a milepost numbered from 0 to 100. A rest area is going to be b
uilt along the highway exactly 7 miles away from milepost 58. If 'm' is the milepost number of the rest area, which of the following equations represents the possible locations for the rest area?
A. | 58 - m | = 7
B. | m + 7 | = 58
C. | m - 7 | = 58
D. | 58 + m | = 7
A. | 58 - m | = 7
B. | m + 7 | = 58
C. | m - 7 | = 58
D. | 58 + m | = 7
2 answers:
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Answer:
Step-by-step explanation:
We know that:
: The number of vibrations per second of the nylon guitar string.
: Tension.
: The length of the string.
Since varies directly with the square root of the
and inversely with
, the equation has the following form:
Where "k" is the constant of variation.
Knowing that when and
,
, we can find the value of "k":
Finally, in order to find the tension when the length is 0.3 meters and the number of vibrations is 12, you need to substitute these values and the value of "k" into and solve for
: