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muminat
3 years ago
13

PLEASE HELP ASAP!! SPAM ANSWERS WILL BE DELETED

Mathematics
1 answer:
kompoz [17]3 years ago
3 0

Answer:

the answer is B), k = 6j

Step-by-step explanation:

the varible is joanne since... you dont know how many games she won, but you DO know how much games kevin won so:

k = Kevin

j = Joanne (the person you dont know how much times they won)

Hope this helpes!!!! :D

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Which equation is a solution to (x-3)(x+9)=27?
Shtirlitz [24]

Answer:

x = ± 3\sqrt{7} - 3

Explanation:

I'm assuming you want the solutions to that equation, so here goes! (If not, please comment.)

(x-3)(x+9)=27

Let's FOIL this all out and expand. (Remember: First, Outer, Inner, Last.)

x^2 +   9x    -    3x    -  27

(first+ inner + outer + last)

x^2 + 9x - 3x - 27 = 27

Combine like terms, and add 27 to both sides.

x^2 + 6x - 27 + 27 = 27 + 27

x^2 + 6x = 54

Let's complete the square, because factoring doesn't work, and because it's good practice.

x^2 + 6x + ___ = 54 + ____

In the blank we will put b/2 ^2 = 6/2 ^2 = 3^2 = 9 to complete the square.

x^2 + 6x + 9 = 54 + 9

Now we've got a perfect square factor:

(x + 3)^2 = 63

sqrt(x+3)^2 = \sqrt{63}

x + 3 = ± 3\sqrt{7}

x = ± 3\sqrt{7} - 3

7 0
3 years ago
State the domain of the relation R{(-3,3), (1,1), (0,2),(1,-4),(5,-1)} and then State the range of the relation R={(-3,3), (1,1)
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The number of roses (r) in a garden increases when the number of weeds (w) decreases. Write the correct equation for this scenar
yawa3891 [41]
Hello,

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