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Genrish500 [490]
3 years ago
13

Find the inverse of each function y=3^x/4

Mathematics
1 answer:
natulia [17]3 years ago
3 0
To find the inverse, interchange the variables and solve for
y
y
.
f
−
1
(
x
)
=
ln
(
x
+
4
)
ln
(
3
)
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Jordan is starting to save $150 to buy a new cell phone. In December, he saved $5. In January, he plans twice as much as he did
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Answer: At the Month May Jordan as able to get enough money to buy the phone.

Work:

December:$5

January:$10

February:$20

March:$40

April:$80

May:<em><u>$160 <--Answer</u></em>

____________________________________________________________In the problem Jordan saves $5 at December, then at January Jordan saved $10 which is twice as December's saved money amount. February, Jordan saved $20, which is twice as January's saved money amount. March is $40, which is twice as February's saved money amount. For April it is $80, which is twice as March's money amount, May is $160 which is twice as April's money amount. Or another way to say this is by starting at $5. Then, keep multiplying by 2 for each month until you get $150 or more. When you do, stop at the month that gets you $150 or more. When i did this exact method, I got $160 on the Month of May. $160 is more than enough for Jordan to buy his phone. So the month May is the correct answer where Jordan can get enough money for his phone.

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Step-by-step explanation:

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