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prisoha [69]
3 years ago
5

Help me please need to ace this test to go to highschool please help

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
8 0

7.50

because, 2.75 x 8 is 22.00

29.50 - 22.00 is 7.50

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Find the inverse of the function f(x)= 4x-2
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Answer:

f⁻¹(x) = x/4 + 1/2

Step-by-step explanation:

To find the inverse of a function, switch the x and y variables, then isolate y.

f(x) replaced y, so you can replace it back.

y = 4x - 2

x = 4y - 2   Switched x and y

x + 2 = 4y  Added 2 to both sides

y = x/4 + 2/4    Divided both sides by 4

y = x/4 + 1/2   Simplified

f⁻¹(x) = x/4 + 1/2    Use function notation

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Since .007 equals to 7% (0.07 = 7/100) and 0.06 equals to 6% (0.06 = 6/100) then 7% is greater than 6%, therefore, answering you question.
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julia-pushkina [17]
Keeping in mind that, there are 12 months in a year, therefore, 7 months is really just 7/12 of a year.

\bf \qquad \textit{Simple Interest Earned Amount}\\\\
A=P(1+rt)\qquad 
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A=\textit{accumulated amount}\\
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\end{cases}
\\\\\\
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3 years ago
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