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OlgaM077 [116]
3 years ago
5

Can someone help me pleasee

Mathematics
1 answer:
FromTheMoon [43]3 years ago
7 0
3/2 = 1.5
Pi x 1.5squared = 7.07 In squared
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Use the difference of cubes identity to write the expression x3 – 64 in factored form.
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Answer:

Hey there!

We have:

x^3-64

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Let me know if this helps :)

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Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the high temperature for the day is 10
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Answer:

The function for the outside temperature is represented by T(t) = 85\º + 15\º \cdot \sin \left[\frac{t-6\,h}{24\,h} \right], where t is measured in hours.

Step-by-step explanation:

Since outside temperature can be modelled as a sinusoidal function, the period is of 24 hours and amplitude of temperature and average temperature are, respectively:

Amplitude

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Given that average temperature occurs six hours after the lowest temperature is registered. The temperature function is expressed as:

T(t) = \bar T + A \cdot \sin \left[2\pi\cdot\frac{t-6\,h}{\tau} \right]

Where:

\bar T - Mean temperature, measured in degrees.

A - Amplitude, measured in degrees.

\tau - Daily period, measured in hours.

t - Time, measured in hours. (where t = 0 corresponds with 5 AM).

If \bar T = 85\º, A = 15\º and \tau = 24\,h, the resulting function for the outside temperature is:

T(t) = 85\º + 15\º \cdot \sin \left[\frac{t-6\,h}{24\,h} \right]

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