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lisabon 2012 [21]
3 years ago
13

What is (x - 3)(x +9)

Mathematics
2 answers:
wel3 years ago
7 0

Answer:

x^2 +6x-27

Step-by-step explanation:

OleMash [197]3 years ago
4 0

Answer:

x^2 + 6x - 27

Step-by-step explanation:

FOIL

x(x) = x^2

x(-3) = -3x

x(9) = 9x

-3(9) = -27

x^2 + 9x + (-3x) + (-27)

x^2 + 6x - 27

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Answer:

Original Price= $20

Sales Price= $20*0.80= $16

8 0
3 years ago
Function help please
Korvikt [17]

Answer:

The first table represents a function.

Step-by-step explanation:

For it to be a function, there needs to be 1 unique y value of 1 unique x value.

  • Looking at 2nd table, we see x value of -5 is mapped to 2 different y values of -5 and 5. So this is not a function.
  • Looking at 3rd table, we see x value of -2 is mapped to 2 different y values of 2 and 4. So this is not a function.
  • Looking at 4th table, we see x value of -4 is mapped to 2 different y values of 2 and 0. So this is not a function as well.

Looking at table 1, there are no duplicate x values and each of the 4 x values map to different values. So the first table represents a function.

4 0
3 years ago
In a race competition the probability that Harry wins is 0.4, the probability that Krish wins is 0.2 and the probability that Jo
Leya [2.2K]

Answer:

jonny is the winner.

Step-by-step explanation:

No. of wins harry has = 0.4

No. of wins krish has = 0.2

No. of wins jonny has = 0.3

To find the prbability of harry and jonny = 0.4 + 0.3

                                                                  =  0.7

Now to see who wins we have to add krish's wins and harry's win, because harry has the greatest number of wins.

krish = 0.2

harry = 0.4

        =  0.6

now we have all three's score, so we will now see which is the greatest number.

krish= 0.6

harry = 0.4

jonny = 0.7

The greatest number is 0.7.

Hence, jonny is the winner!

HOPE IT HELPS PLZ MARK ME BRAINLIEST :D

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2 years ago
At your child's birth, you begin contributing monthly to a college fund. The fund pays an APR of 4.1% compounded monthly. You fi
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Answer:

$185.19

Step-by-step explanation:

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3 years ago
What is x on this right triangle? Round to the nearest tenth.
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Answer:

= 109.5 to the nearest tenth.

Step-by-step explanation:

3 0
3 years ago
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