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AlladinOne [14]
3 years ago
5

If the radius of a circle is 15 cm, what is the diameter?

Mathematics
2 answers:
attashe74 [19]3 years ago
5 0
The answer is the second answer, 30 cm 
krok68 [10]3 years ago
3 0
The answer is 30 cm. Radius is half of a diameter.
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Find two positive numbers satisfying the given requirements. the product is 192 and the sum of the first plus three times the se
Zepler [3.9K]
<h3>Given</h3>

Two positive numbers x and y such that xy = 192

<h3>Find</h3>

The values that minimize x + 3y

<h3>Solution</h3>

y = 192/x . . . . . solve for y

f(x) = x + 3y

f(x) = x + 3(192/x) . . . . . the function we want to minimize

We can find the x that minimizes of f(x) by setting the derivative of f(x) to zero.

... f'(x) = 1 - 576/x² = 0

... 576 = x² . . . . . . . . . . . . multiply by x², add 576

... √576 = x = 24 . . . . . . . take the square root

... y = 192/24 = 8 . . . . . . . find the value of y using the above equation for y

The first number is 24.

The second number is 8.

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3 years ago
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7 0
2 years ago
10 points?...1) must be quick to answer,2) must be reasonable answer,3) Show explanation for your answer
Ilia_Sergeevich [38]
Your answer is
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Answer:

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