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Kryger [21]
3 years ago
5

Plz help! Urgent!

Mathematics
1 answer:
kirza4 [7]3 years ago
5 0

Answer:

Both answers are C!!!

Step-by-step explanation:

Im so lucky, I guessed and got them both right on the usatestpreptest.

answer 1: petri dish A will have a density of 19.6

answer 2: Petri dish A by 3.3 bacteria/mm

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For this case we have the following equation:
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Determine an equation of the tangent line to <br> y = e - 2x<br> at the point (0,1).
Darya [45]

Answer:

y=-2x+1

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Step-by-step explanation:

y = e^{-2x}

to find the tangent line we need to find the curve's derivative. using \dfrac{d}{dx}e^{ax} = ae^{ax}, we'll find dy/dx.

\dfrac{dy}{dx} = -2e^{-2x}

^ this is the equation of the slope of the curve. By finding the slope of the curve at (0,1) we'll also be finding the slope of the tangent to the curve at (0,1).

at (0,1) x = 0. we'll use that in dy/dx

\dfrac{dy}{dx} = -2e^{-2(0)}

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\dfrac{dy}{dx} = -2

this is the slope of the tangent at point (0,1)

we'll use the general equation of the line formula to find the equation of tangent.

(y-y_1)=m(x-x_1)

here m is the slope, i.e. m = -2, and (x1,y1)=(0,1)

(y-1)=-2(x-0)

y=-2x+1

this is the equation of the tangent line at the point (0,1)

4 0
3 years ago
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