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ASHA 777 [7]
4 years ago
9

HELP!! 100 POINTS!!

Mathematics
2 answers:
NNADVOKAT [17]4 years ago
5 0

Answer:

x=9 x=-1

Step-by-step explanation:

x²-8x-9=0    a=1 b=-8 c=-9

you have to use the quadratic formula to get the values.

Sladkaya [172]4 years ago
3 0

Answer:

It's incorrect

x = -1, 9

Step-by-step explanation:

x²-8x-9=0

x²-8x=9

x²-8x+16=9+16

(x-4)²=25

You have to take square root both sides, so RHS would be sqrt(25) = 5 (+/-)

x-4=+/-5

x-4=5

x-4=-5

x=9

x=-1

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Which is less 2/5 or 4/5
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\large\blue\textsf{\textbf{\underline{\underline{Question:-}}}}

             Which is less, 2/5 or 4/5?

\large\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}

I'll use a cake for explanation.

Suppose we have a cake, and one of your companions, Mary, is hungry, so she takes 2/5 of one cake. Then, your other friend, Bella, takes 4/5 of the cake.

Then you compare the cakes. Who has less, Mary or Bella?

That's right, Mary.

So 2/5 is less than 4/5.

<h3>Good luck.</h3>

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5 0
2 years ago
Can someone help me on question 1 2 3 4 5
anygoal [31]
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3 years ago
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4 years ago
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8 0
3 years ago
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soldier1979 [14.2K]

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