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Ede4ka [16]
3 years ago
14

Is 6.584 a rational number

Mathematics
1 answer:
natulia [17]3 years ago
4 0

What's your numerator and denominator value?

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F(x)=ax+b/2 then f^-1 (x-1) =2x-5/2 find a and b​
krok68 [10]

From the given inverse function, we have

f^{-1}(x-1) = 2x - \dfrac52 \\\\ \implies f^{-1}(x) = f^{-1}((x+1)-1) = 2(x+1) - \dfrac52 = 2x-\dfrac12

By definition of inverse function,

f\left(f^{-1}(x)\right) = x

so that

f\left(2x-\dfrac12\right) = x

a\left(2x-\dfrac12\right) + \dfrac b2 = x

2ax - \dfrac a2 + \dfrac b2 = x

\implies\begin{cases}2a=1 \\\\ -\dfrac a2+\dfrac b2 = 0\end{cases}

\implies \boxed{a=\dfrac12}

\implies \dfrac b2 = \dfrac a2 \implies \boxed{b=\dfrac12}

8 0
2 years ago
Marco has 2 bags of flour with 6 2/3 cups of flour in each bag. He makes 6 batches of muffins and uses 1 2/3 cups of flour for e
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Answer:what did you get

Step-by-step explanation:

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3 years ago
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3 years ago
A school makes $175 from ticket sales for a school play. from the ticket sales, $188 are from adult tickets. Student tickets are
anygoal [31]
Wassup4, your questions is unsolvable because you said the school made $175 from the box office, yet you just said that the money from adult sales was $188 dollars and 175. But I'll solve it anyway. 175=188+3x. -13=3x x=-4 1/3. Technically,  the school lost 4 1/3 students. Don't trust my calculation.
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No picture? what’s the question
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