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2 years ago

80 POINTS MATH

Mathematics

2 answers:

Aloiza [94]2 years ago

5 0

Answer:

the degree angle of scissor B is greater as its angle number is greater than A

32 is a greater number than 26 therefore the degree of angle 32 is wider than the degree of 26

~batmans wife dun dun dun...aka ~serenitybella

notka56 [123]2 years ago

3 0

hey mate..

the position at which the tips of the scissors will be FARTHER APART is at position B.

as the angle made by the scissors at the centre is greater in position B.

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Answer:

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Step-by-step explanation:

The area of a sphere is given by the following formula:

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In which A is the area, measured in cm², and r is the radius, measured in cm.

Assume that the radius r of a sphere is expanding at a rate of 40 cm/min.

This means that $\frac{dr}{dt} = 40$

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This is $\frac{dA}{dt}$ when $r = 20$ . So

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Applying implicit differentiation.

We have two variables, A and r, so:

$\frac{dA}{dt} = 8r\pi \frac{dr}{dt}$

$\frac{dA}{dt} = 8*20\pi*40$

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The rate of change in surface area when r = 20 cm is 20,106.19 cm²/min.

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