2 years ago

Describe the energy transformations that occur when you burn a piece of wood

Mathematics

1 answer:

Nesterboy [21]2 years ago

3 0

The wood burns into an ash.

Chemical change.

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The most likely measurement for a two-story building would be 20 feet. 6 inches, 25 inches, and 6 feet all are way too short for a two-story building.

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What is the median of the data set?

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11.7

Step-by-step explanation:

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2 years ago

Find two positive numbers whose product is 25 and whose sum is a minimum. (if both values are the same number, enter it into bot

pshichka [43]

Let xy = 25, x and y > 0.

$y = \frac{25}{x}$
$\text{Denote S as: } x + y$
$S(x) = x + \frac{25}{x}$

$\text{Minimum: }S'(x) = 0, S''(x) > 0$
$S'(x) = 1 - \frac{25}{x^{2}}$
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Thus, at x = 5, there lies a minimum summation, and this forms a square with side length of 5.

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3 years ago

Simplify completely. 5(x - 2) + 2x

fomenos

<span>5(x - 2) + 2x
= 5x - 10 + 2x
= 7x -10

answer
</span>7x -10

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