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Mathematics

1 answer:

Olin [163]2 years ago

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A One-to-One function has only one value of y for a given value of x. Neither x value is paired with more than 1 y value, nor a y value is paired with more than 1 x values.

From the given options, the option A represents a One-to-One function.
In option B, a same y value occurs at more than one values of x. Same can be seen in option C. Therefore, these two are not One-to-One functions.

So, the correct answer is option A.

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The wind force f on a sail varies jointly as the area a of the sail and the square of the wind speed w.

blondinia [14]

Answer:

122.5 lbs

Step-by-step explanation:

The relation between force, wind speed, and area can be written ...

f = ks²a

for some wind speed s and area a.

The constant of proportionality, k, can be found from the given data.

64.8 = k(18²)(500) . . . force in pounds, area in square feet, speed in mph

k = 64.8/(324×500) = 0.0004