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Ad libitum [116K]

2 years ago

6

Before an election 23% said that would vote for A 9% said they would vote for B 20% said they would not vote these all votes as

they said the rest of the population actually voted for A and B in the ration 1 : 2 who got the most votes?

1 answer:

Bad White [126]2 years ago

7 0

A got the most votes because the ration works with the percentage very well

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Find the f^-1(x) and it’s domain

borishaifa [10]

Answer:

$f^{-1}(x) = (x + 8)^2$

$x \ge -8$

Step-by-step explanation:

Given

$f(x) = \sqrt x - 8$

Solving (a): $f^{-1}(x)$

We have:

$f(x) = \sqrt x - 8$

Express f(x) as y

$y = \sqrt x - 8$

Swap x and y

$x = \sqrt y - 8$

Add 8 to $both\ sides$

$x + 8 = \sqrt y - 8 + 8$

$x + 8 = \sqrt y$

Square both sides

$(x + 8)^2 = y$

Rewrite as:

$y = (x + 8)^2$

Express y as: $f^{-1}(x)$

$f^{-1}(x) = (x + 8)^2$

To determine the domain, we have:

The original function is $f(x) = \sqrt x - 8$

The range of this is: $f(x) \ge -8$

The $domain$ of the $inverse$ function is the $range$ of the $original$ function.

<em>Hence, the domain is:</em>

$x \ge -8$

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I need help <br> 8 1/4 x 4 1/2 x 6 1/2

Vesnalui [34]

Answer:

$241\frac{5}{16}$

Step-by-step explanation:

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Answer:

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Square x first then add x then subtract by 2

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