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Wewaii [24]
2 years ago
7

Which constant number would be an to both sides of the equation rn order to complete the square for the quadratic function 1=x^2

-6x
Mathematics
1 answer:
AnnZ [28]2 years ago
8 0

Answer:

k = 9

Step-by-step explanation:

Given

1= x^2 - 6x

Required

The perfect number

The coefficient c of x in the above equation is:

c = -6

Divide by 2

c/2 = -3

Square both sides

(c/2)^2 = 9

Hence, the constant to add is:

k = 9

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bonufazy [111]
You will factor out the common factor of t if you are solving for t. you will then divide both sides by (s+3) to make t the subject of the formula. for this question you can only get t in terms of s.
so:
st+3t=6
t(s+3)/(s+3)=6/(s+3)
t=6/(s+3)

if you are required to solve for s then you are going to subtract 3t from both sides. you can factorise 6-3t .you will then divide both sides by t to isolate s.for this question you can only get s in terms of t.so:

st+3t-3t=6-3t
st/t=2(3-t)/t
s=2(3-t)/t
4 0
2 years ago
Brainliest to CORRECT answer!
Anastasy [175]

Answer:

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Step-by-step explanation:

8 0
2 years ago
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X² – 4x – 12=0 <br> solve by completing the square
Juliette [100K]

Answer:

x = -2 0r x = 6

Step-by-step explanation:

from the question

X² – 4x – 12=0

solve by completing the square method

we have;

X² – 4x – 12=0

X² – 4x = 12

to make the left hand side a perfect square we add 4 to both sides.

X² -4x  + 4 = 12 + 4

X² -4x  + 4 = 16

from left hand side X² -4x  + 4

= (x -2) × ( x -2)

it can be simply expressed as

( x-2)²

so since X² -4x  + 4  has been simplified to be ( x-2)²

then,

( x-2)² = 16

x - 2 = √ 16

since square root has  two values it can either be positive or negative

so we have

x = 2 + √16

or

x = 2 - √16

therefore

x = 2 + √16

x = 2 + 4

x = 6

0r

x = 2 - 4

x = -2

4 0
3 years ago
Anyone know special right triangles???
MissTica

Answer:

<h2>x = 6 cm</h2>

Step-by-step explanation:

think we hve to use trigonometry here

sin 30⁰

see the pic

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2 years ago
What is 1.11 as a mixed &amp; improper fraction?
8090 [49]
Mixed fraction: 1 11/100
Improper fraction: 111/100
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3 years ago
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