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3 years ago

. Help please hurry Complete the table by plugging in the X value to solve for the y value

Mathematics

1 answer:

UkoKoshka [18]3 years ago

8 0

Answer:

-1

Step-by-step explanation:

if I understand correctly, Y= x+4, you should add all the numbers in the X column by 4

Example:

-7

-7 plus 4 would be -3

the reason for this is when adding negative numbers you always go down instead of going up because if you add the way we add normal number then you will keep going deeper into the negative numbers.

Hope this helps!

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2 years ago

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Sauron [17]

Answer:

$\frac{\pi}{4}$

Step-by-step explanation:

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2 years ago

X² – 2x – 8=0 How do I complete the square

ale4655 [162]

Answer:

X=-2

Step-by-step explanation:

Solution by completing the square for:

x2−2x−8=0

Keep x terms on the left and move

the constant to the right side

by adding it on both sides

x2−2x=8

Take half of the x term and square it

[−2⋅12]2=1

then add the result to both sides

x2−2x+1=8+1

Rewrite the perfect square on the left

(x−1)2=8+1

and combine terms on the right

(x−1)2=9

Take the square root of both sides

x−1=±9–√

Cannot Simplify the Radical term (1):

Isolate the x on the left side and

solve for x (1)

x=1±3

therefore (2)

x=1+3

x=1−3

which becomes

x=4

x=−2

3 0

3 years ago