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pochemuha
3 years ago
9

Given: f(x)= 8x^5, find f^-1(x)

Mathematics
1 answer:
zlopas [31]3 years ago
3 0

Answer:

y= 5th root of (x over 8)

Step-by-step explanation:

y=8x^5

x=8y^5

(x/8)=y^5

wont let me put a square root but the answer should be y equals 5th root of x over 8 all in the 5th root

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. Mrs. Rojas deposited $8000 into an account paying 4% interest annually. After 8 months Mrs. Rojas withdrew the $6000 plus inte
Mashcka [7]

well, keeping in mind that a year has 12 months, that means that 8 months is 8/12 of a year, when Mrs Rojas pull her money out.

~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$6000\\ r=rate\to 4\%\to \frac{4}{100}\dotfill &0.04\\ t=years\to \frac{8}{12}\dotfill &\frac{2}{3} \end{cases} \\\\\\ A=6000[1+(0.04)(\frac{2}{3})]\implies A=6000\left( \frac{77}{75} \right)\implies A=6160

well, she put in 6000 bucks, got back 160 extra, that's the interest earned in the 8 months.

what if she had left her money for 1 whole year, then

~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill & \$6000\\ r=rate\to 4\%\to \frac{4}{100}\dotfill &0.04\\ t=years\dotfill &1 \end{cases} \\\\\\ A=6000[1+(0.04)(1)]\implies A=6240

so had she left it in for a year, she'd have gotten 6240, namely 240 in interest, well, what fraction of a year's interest was earned? or worded differently, what fraction is 160(8 months) of 240(1 year)?

\cfrac{\stackrel{\textit{for 8 months}}{160}}{\underset{\textit{for 12 months}}{240}}\implies \cfrac{2}{3}

4 0
2 years ago
Sarah has some chocolates.
kakasveta [241]

Answer:

24:8 which is also just 6:2 or 3:1

Step-by-step explanation:

There are many ways you can write this, and this is what I think hope this helps

8 0
3 years ago
Find the volume of a cone with a radius of 8 cm and height 15 cm? Round to the nearest tenth. Please show work.
Nonamiya [84]
You multiply radius by 3.14 by the height  if you plug it in your equation is 8×3.14×15 which equals 1005.31 which rounds to 1005, the answer is 1005! :D
4 0
2 years ago
Kameran has a one-gallon pitcher to fill with apple juice. He uses the standard ratio of one can of concentrate to 1.75 cans of
Advocard [28]

1/2.75th what I got on paper sorry if wrong
7 0
2 years ago
Which number(s) below belong to the solution set of the equation? Check all that apply
lys-0071 [83]

Answer:

salut

X+6=45

X=45-6

X=39


Step-by-step explanation:


3 0
3 years ago
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