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hoa [83]
3 years ago
9

The inverse of y=x^2+8

Mathematics
1 answer:
poizon [28]3 years ago
6 0

Answer:

\sqrt{x-8},\:-\sqrt{x-8}

Step-by-step explanation:

change x and y and solve for x

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A tennis player has won 24 out of 36 matches. His sponsor says that he must win 70% of his total number of matches to qualify fo
pashok25 [27]

Answer:

He must win 11 more matches to qualify for the bonus.

Step-by-step explanation:

24/36 * 100 = 67% (to the nearest %) - This is the current percentage of what the Tennis player has won.

If we add 14 more matches on to the 36 the player has already played, we know that the Tennis player plays 50 matches in total.

Let's say the Tennis player was playing 100 matches, they would need to win 70 or more to qualify for the bonus. Because the player is playing half this amount of matches, we half the amount of games they have to win...

35/50 games or more must be won to qualify for the bonus. The Tennis player has already won 24 matches, so must win 11 more matches to qualify for the bonus.

Hope that helps!

5 0
2 years ago
Read 2 more answers
I dont know the answer to this question I dont know what I can put for the x and the y
harina [27]

Answer:

  (x, y) = (-4, 4)

Step-by-step explanation:

You find the values of x and y by working the problem using any of the methods of solving simultaneous equations that you have been taught.

Here, you observe that the y-coefficients are the same in each equation. That means you can cancel the y-terms by subtracting one equation from the other.

  (7x +6y) -(4x +6y) = (-4) -(8)

  3x = -12 . . . . simplify

  x = -4 . . . . . . divide by 3

Now, you can substitute this into either equation to find y.

 4(-4) +6y = 8

  6y = 24 . . . . . . . . add 16

  y = 4 . . . . . . . . divide by 6

The solution to this system of equation is ...

  • x = -4
  • y = 4
5 0
2 years ago
Read 2 more answers
Dvds are for $24 each,felipe write the expression 4 times 24 to find the costin dollars of buying 4 dvds, how can i rewrite feli
Karo-lina-s [1.5K]
The distributive property states that:

a(b+c)=ab+bc.

or more generally: a(b+c+d)=ab+av+ad.



This is a very useful tool to perform multiplication.

For example, if we want to multiply 7 by 234, we can proceed as follows:

7*234=7(200+30+4)=7*200+7*30+7*4=1400+210+28=1610+28=1638


back to our problem,

4 * 24 = 4(20+4)=4*20+4*4=80+16=96  ($)

So, instead of multiplying 4 by 24, we multiplied 4 by 20 and 4, which is easier, and then added these together.


Answer:  

4 * 24 = 4(20+4)        [=4*20+4*4=80+16=96 ($)]

5 0
3 years ago
If you know that 7 - square root 5 is it root of a polynomial function
Kitty [74]

Answer:

As you must know, If one root of the polynomial 7-√5, the other will be 7+√5 i.e irrational root occur in pairs.

A polynomial function cannot have single unreal i.e irrational root. It always occur in pairs.

So , consider a polynomial function of any degree, if it has a root 7-√5, then it must have another root as 7+√5.

A polynomial can't have 7-√5 as a single root.  




4 0
3 years ago
8x(11-4) divided by 2
sladkih [1.3K]

Answer:

28

Step-by-step explanation:

First, you start with 11-4, which equals 7.

Then, you multiply 7x8 which equals 56.

Lastly, you divided 56 by 2, getting 28.

7 0
2 years ago
Read 2 more answers
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