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algol13
3 years ago
12

Is there a solution to this question?y=5x;(3,15)

Mathematics
2 answers:
Pavlova-9 [17]3 years ago
7 0
It's not clear what the question is.

<u>IF</u> the question is "Does this point lie on the graph of this equation ?",
<u>THEN</u> the answer is "Yes".
ikadub [295]3 years ago
6 0
15=5\cdot3\\&#10;15=15

The given pair of numbers is a solution of the equation.

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11. Suppose a force F varies as the product of two masses, m and M, inversely as
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Answer:

k = 6.74 * 10^{-5}

Step-by-step explanation:

Given

F\ \alpha\ \frac{m * M}{r^2} --- The variation

F = 675; m = 125; M = 225; r = 0.0530

Required

Determine the constant of proportionality (k)

F\ \alpha\ \frac{m * M}{r^2}

Express as an equation

F = k\frac{m * M}{r^2}

Multiply both sides by r^2

Fr^2 = km * M

Make k the subject

k = \frac{Fr^2}{m * M}

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We have:

k = \frac{675* 0.0530^2}{125 * 225}

k = \frac{1.896075}{28125}

k = 0.000067416

This can be represented as:

k = 6.74 * 10^{-5}

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