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Mrrafil [7]
3 years ago
5

Quadratic inverse for y=x^2-1

Mathematics
1 answer:
stepan [7]3 years ago
8 0

let's recall that to find the inverse of any expression, we start off by doing a quick switcheroo on the variables, and then solve for "y".

\bf y = x^2-1\implies \stackrel{switcheroo}{x=y^2-1}\implies x+1=y^2\implies \sqrt{x+1}=\stackrel{f^{-1}(x)}{y}

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Katen [24]
5 1/4 as a decimal is 5.25

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3 years ago
Tara buys two pairs of socks for 4.99 each and 3 t-shirts for 11.49 each. If she pays 6% sales tax what is the total amount of h
Alla [95]
First we add.

2 (4.99) + 3 (11.46) = $44.36

We were told that she has to pay 6% in tax, so all we have to do is multipy $44.36 by 0.06 and add that result to $44.36 and you will get this:

$44.36 * 0.06 = $2.66

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4 0
3 years ago
You went to the mall with $80. You spend 25% of your money on a pair of shorts and 65% of the remainder on sandals. How much did
murzikaleks [220]
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Hope I helped and good luck!
6 0
3 years ago
Jason paints 1/4 of the area of his living room walls, w, on Monday. On Tuesday, he paints twice as much as he painted on Monday
AlekseyPX

Answer:

Step-by-step explanation:

Let us assume that the total area of the wall to be painted is w.

Then Jason painted an area of  (1/4)w on Monday

And he painted (2)(1/4)w on Tuesday

So to find the unpainted area, we just take the whole wall area to be painted (which is w) and subtract out the amounts painted on Monday and Tuesday, which are shown above.

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We can simplify this expression by factoring out w

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U = w (1/4) or w/4

So all Jason needs to do is paint as much of the wall as he did on Monday, and he will be done!

8 0
2 years ago
Read 2 more answers
Yeet I need help thank you
maria [59]

Answer:

cannot see all the choices

Step-by-step explanation:

vertical angles share a corner only, no sides

<5 and <7 are vertical angles

<6 and <8 are vertical angles

<2 and <4 are vertical angles

<1 and <3 are vertical angles

5 0
3 years ago
Read 2 more answers
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