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3 years ago

Solve for a and b in the following circles: B) a а b 82°

Mathematics

2 answers:

Crank3 years ago

8 0

Answer:

A.po ang sagot

Step-by-step explanation:

ty po hope it help wag nyo na lang po kopyhin kung mali yan po kasi answer ko

sweet [91]3 years ago

8 0

Answer:

a 41

when the line touch the circle you have to take the half of it

for b its equal 144

the full circle degree is 360

so we can say the 82+2x=360

because the two lines in the circle equal each other so its means tha the Piece of the circle in the left is equal b too

hopefully its helpful and sorry because of my engilish

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CaHeK987 [17]

(C)

Step-by-step explanation:

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$V = \dfrac{\pi}{3}r^2h$

Taking the derivative of V with respect to time, we get

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$\:\:\:\:\:\:\:= \dfrac{\pi}{3}\left(2rh\dfrac{dr}{dt} + r^2\dfrac{dh}{dt}\right)$

Since r is always equal to h, we can set

$\dfrac{dr}{dt} = \dfrac{dh}{dt}$

so that our expression for dV/dt becomes

$\dfrac{dV}{dt} = \dfrac{\pi}{3}\left(3r^2\dfrac{dh}{dt}\right)$

$\:\:\:\:\:\:\:= \pi r^2\dfrac{dh}{dt}$

Solving for dh/dt, we get

$\dfrac{dh}{dt} = \dfrac{1}{\pi r^2}\dfrac{dV}{dt}$

$\:\:\:\:\:\:\:= \dfrac{1}{9\pi\:\text{m}^2}(36\:\text{m}^3\text{/s})$

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Answer:

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Step-by-step explanation:

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