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Semmy [17]
2 years ago
11

A diver is standing at the top of a high-dive. What type of energy is she exhibiting?

Mathematics
2 answers:
scoray [572]2 years ago
4 0

potential energy because she is storing the energy

Nutka1998 [239]2 years ago
3 0

She is exhibiting potential energy. Potential energy is the stored energy before change, or before kinetic energy, energy of movement.


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bagirrra123 [75]
The answer is 58 and 39
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Find a positive number for which the sum of it and its reciprocal is the smallest​ (least) possible. Let x be the number and let
Allisa [31]

Answer:

S(x) = x + \frac{1}{x} --- Objective function

Interval = \{x:x=1\}

Step-by-step explanation:

Given

Represent the number with x

The required sum can be represented as:

x + \frac{1}{x}

Hence, the objective function is:

S(x) = x + \frac{1}{x}

To get the the interval, we start by differentiating w.r.t x

<em>Using first principle, this gives:</em>

S'(x) = 1 - \frac{1}{x^2}

Equate S'(x) to 0 in order to solve for x

0 = 1 - \frac{1}{x^2}

Subtract 1 from both sides

0 -1 = 1 -1 - \frac{1}{x^2}

-1 = - \frac{1}{x^2}

Multiply both sides by -1

1 = \frac{1}{x^2}

Cross Multiply

x^2 * 1 = 1

x^2  = 1

Take positive square root of both sides because x is positive

\sqrt{x^2} = \sqrt{1

x = 1

Representing x using interval notation, we have

Interval = \{x:x=1\}

To get the smallest sum, we substitute 1 for x in S(x) = x + \frac{1}{x}

S(1) = 1 + \frac{1}{1}

S(1) = 1 + 1

S(1) = 2

<em>Hence, the smallest sum is 2</em>

3 0
3 years ago
To simplify -36 = (2)(3) 2 + 5, we first
velikii [3]

Answer:

Step-by-step explanation:

We use formula of BODMAS we starting by removing blackets by multiply (2)(3)and w get 6 and then by 2 we get 12 and add by 5 we get 17 and cross 17 to -36 and 17 change to -17 and then take -17-36=-53..

-36=(2)(3)2+5

-36=(6)2+5

-36=12+5

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-17-36

=-53

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The answer to this question is -1/4 or 0.25
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