What what is the date of the snow on Cherry Street after three hours?

Mathematics

1 answer:

Alex73 [517]2 years ago

6 0

We are given that the initial depth of snow is 10 cm

while the rate of melting is 1/3 cm per hour. So the melted ice after 3 hours

is:

melted = (1/3 cm/hr) * 3 hours = 1 cm

Hence the depth left is:

depth = 10 cm – 1 cm = 9 cm

Answer:

9 cm

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Sin(3pi over 4) = _____

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If you're using the app, try seeing this answer through your browser: brainly.com/question/2790456

______________

$\mathsf{sin\!\left(\dfrac{3\pi}{4}\right)}\\\\\\ =\mathsf{sin\!\left(\dfrac{3\cdot 180^\circ}{4}\right)}\\\\\\ =\mathsf{sin(135^\circ)}\\\\ =\mathsf{sin(180^\circ-135^\circ)}$

$=\mathsf{sin(45^\circ)}\\\\ =\mathsf{\dfrac{\sqrt{2}}{2}}\quad\longleftarrow\quad\textsf{this is the answer.}$

I hope this helps.=)

Tags: <em>sine sin common angles trig trigonometry </em>

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