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3 years ago

PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!!

Mathematics

2 answers:

Sergio [31]3 years ago

8 0

Answer:

b. YZ

Explanation:

YZ is the common side.

∠XYZ and ∠WYZ has a common side which is YZ at the middle.

We can know this as YZ is mentioned in the both ends of ∠XYZ and ∠WYZ

uysha [10]3 years ago

4 0

What is the common side of ∠XYZ and ∠WYZ?

➪ When we observe we see that both angles XYZ and WYZ have the side YZ which means that it is the common side...

Thus, Option B is the correct choice!!~

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Nadya [2.5K]

Answer:

$\frac{dy}{dt} = 102$

Step-by-step explanation:

step(i)

Given function y = 3 x³ - 2 x ... (i)

Differentiating equation (i) with respective to 'x'

$\frac{dy}{dx} = 3 (3 x^{2} ) - 2(1)$

Given x = -2

$(\frac{dy}{dx} ) x_{=-2} = 3 (3 (-2)^{2} ) - 2(1)$

$(\frac{dy}{dx} ) x_{=-2} = 36 -2 =34$

Step(ii):-

we know that

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

Given $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

substitute values $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

⇒ $34 = \frac{\frac{dy}{dt} }{3 }$

cross multiplication , we get

$\frac{dy}{dt} = 34( 3 ) = 102$

Final answer:-

$\frac{dy}{dt} = 34( 3 ) = 102$

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