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maxonik [38]
3 years ago
10

3-5n+4n=4. help please​

Mathematics
1 answer:
goblinko [34]3 years ago
6 0

Answer:

n = -1

Step-by-step explanation:

3-5n+4n=4

3 - n = 4

-n = 1

n = -1

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1/3x+1/2

Step-by-step explanation:

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Find an equation of the tangent to the curve at the point corresponding to the given value of the parameter. x = t7 + 1, y = t8
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I must assume that you meant t=1 (not t=?1).  If t=1, here's what we'd do:

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3.  Now we have both a point (2,2) on the graph and the slope of the tangent line to the curve at that point:  9/7

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3 years ago
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m_a_m_a [10]

Answer:

The inverse will be:

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Step-by-step explanation:

In order to find the inverse of the equation, we do a variable change, since we are finding the inverse, :

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9y'^{2}/9 = (x + 4)/9

y'^{2} = (x + 4)/9

Now you will have to clear y, with the square root.

[tex]y'^{\frac{2}{2}} = \sqrt{x + 4}  / \sqrt{9}[/tex] =

Simplifying terms

y' = \frac{\sqrt{x+4}}{3}

f^{-1}(x)  = \frac{\sqrt{x+4}}{3}

You can check the answer by doing the evaluation of the following equation:

(f o f^{-1} ) (x)

substitute the equation for y' or inverse function f^{-1}

f(\frac{\sqrt{x+4} }{3})

Now substitue the value into f(x)

You will have

= 9(\frac{\sqrt{x+4} }{3}} )^{2}  - 4\\\\Solving\\\\9(\frac{{x+4} }{9}} )  - 4

=x

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B , because the all go by half until it goes up more
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