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NeX [460]
3 years ago
14

Write the inverse of h(x) = e 2x h -1(x) = log e2 x 2log ex ½log ex

Mathematics
1 answer:
svp [43]3 years ago
6 0

Answer:

C

Step-by-step explanation:

So we have the function:

h(x)=e^{2x}

To find the inverse, switch h(x) and x, change h(x) to h⁻¹(x), and solve for it. Thus: "

x=e^{2h^{-1}(x)}

So, take the natural log (log to base e) of both sides:

\ln(x)=\ln(e^{2h^{-1}(x)})

The right side will cancel:

\ln(x)=2h^{-1}(x)

Divide both sides by 2:

h^{-1}(x)=\frac{1}{2}\ln(x)

And we're done!

Our answer is C

Note:

\ln(x)=\log_ex

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6 0
3 years ago
-2 divided by 1/4 please show your work
Aneli [31]
-2 / 1/4
If you are dividing you have to switch 1/4 to 4/1

-2/1  / 4/1
= -8
Hope this helped
6 0
3 years ago
A grocery store sells a bag 7 oranges for $2.66. if alexandra spent $3.42 on oranges how many did she buy
Murljashka [212]

Answer:

9 oranges

Step-by-step explanation:

7 for 2.66 is 38c for 1

7 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%E2%88%923x2%E2%88%9211x%2B7" id="TexFormula1" title="f(x) = &minus;3x2&minus
bixtya [17]

Answer:

x=   \frac{ - 11 +  \sqrt{205} }{6}  \:  \:  \:  \:  \: or \:  \:  \:  \:  \\x  =  \frac{ - 11 -  \sqrt{205} }{6}

Step-by-step explanation:

- 3x {}^{2}  - 11x + 7 = 0 \\ 3x {}^{2}  + 11x - 7 = 0

here,

a = 3 \\ b = 11 \\ c =  - 7

now,

D = b {}^{2}  - 4ac \\  = (11) {}^{2}  - 4(3)( - 7) \\  = 121 + 84 \\  = 205  > 0 \\

so,

x =  \frac{ - b +  -  \sqrt{b {}^{2}  - 4ac} }{2a}  \\  \\  =   \frac{ - 11 +  -  \sqrt{205} }{2(3)}  \\  =   \frac{ - 11 +  -   \sqrt{205}  }{6}  \\  \\  =   \frac{ - 11 +  \sqrt{205} }{6}  \:  \:  \:  \:  \: or \:  \:  \:  \:  =  \frac{ - 11 -  \sqrt{205} }{6}

4 0
3 years ago
Find an equation of the line passing through the given points. Use function notation to write the equation. ​(3​,8​) and ​(4​,13
Olegator [25]

Answer:

f(x)=5x-7

Step-by-step explanation:

The given line passes through the points;

(x_1,y_1)=(3,8)

and

(x_2,y_2)=(4,13)

Let us find the slope using;

m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{13-8}{4-3}

m=\frac{5}{1}=5

The equation is given by;

y-y_1=m(x-x_1)

We substitute the values into the formula to obtain;

y-8=5(x-3)

y=5x-15+8

y=5x-7

There the equation of the line is

f(x)=5x-7

7 0
3 years ago
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