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3 years ago

How do I change my user name?

2 answers:

6 0

Answer: You are currently unable to change your Brainly username. If you mistyped or want a different one, you have to create a new account. However, you can input your name if you click on your Profile, Edit Profile, and Preferences. This does not show up for others.

Hope this helps!

Elena-2011 [213]3 years ago

4 0

Answer:

Go to your settings then there u go hope that helped u out

Explanation:

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3 years ago

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3 years ago

Each time a patient presents for care, the ______________ should be viewed or copied to ensure accurate information is on file f

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This could be the
1) insurance card or insurance information, which may be private insurer, Medicaid, Medicare, military health.
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3 years ago

How do Cornell notes support the generation of good tutorial questions?

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Cornell notes make your notes easier to read and more precise to answer

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3 years ago

The graph of x^2=-2+y+5cosy is shown for y=11

erik [133]

(a)

We have been given an equation $x^{2}=-2+y+5cosy$ . Upon taking derivative of this equation with respect to x on both the sides, we get:

$2x=0+\frac{dy}{dx}+5(-siny)\frac{dy}{dx}\\2x=(1-5siny)\frac{dy}{dx}\Rightarrow \frac{dy}{dx}=\frac{2x}{1-5siny}$

(b)

In order to write the equation of tangent line, we need to find the slope of the line. We know that point (3,11) lies on the graph. Therefore, we write the slope of the tangent as:

$\text{Slope}=\frac{dy}{dx}=\frac{2(3)}{1-5sin(11)}=1$

Therefore, equation of tangent line is:

$y-y_{1}=m(x-x_{1})\Rightarrow y-11=1(x-3)\\y-11=x-3\\y=x+8$

(c)

We know that slope of tangent is given as $\frac{dy}{dx}=\frac{2x}{1-5siny}$ . The tangent will be vertical when denominator of slope is zero, that is:

$1-5siny=0\Rightarrow siny=\frac{1}{5}\Rightarrow y=arcsin(\frac{1}{5})\\y=1.732,1.525, 3.063 \text{ etc.}$

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3 years ago