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3 years ago

Find x .

Mathematics

1 answer:

lisabon 2012 [21]3 years ago

8 0

Answer:

x = 110°

Step-by-step explanation:

I think that CHORDS AC & BD are intersecting at centre of the circle. If it is so then,

Since, measure of central angle of a circle is equal to the measure of its corresponding arc or vice versa.

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What is the opposite of -5.

frosja888 [35]

The answer should be positive 5 or 5

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2 years ago

Rewrite x2 − 6x + 7 = 0 in the form (x − a)2 = b, where a and b are integers, to determine the a and b values.

Setler79 [48]

Answer:

Therefore values of a and b are

$a=3\ and\ b = 2$

Step-by-step explanation:

Rewrite $x^{2}-6x+7=0$ in the form

$(x-a)^{2}=b$

where a and b are integers,

To Find:

a = ?

b = ?

Solution:

$x^{2}-6x+7=0$ ..............Given

Which can be written as

$x^{2}-6x=-7$

$(\frac{1}{2} coefficient\ of\ x)^{2}=(\frac{1}{2}\times -6)^{2}=9$

Adding half coefficient of X square on both the side we get

$x^{2}-6x+9=-7+9=2$ ...................( 1 )

By identity we have (A - B)² =A² - 2AB + B²

Therefore,

$x^{2}-6x+9=x^{2}-2\times 3\times x+3^{2}=(x-3)^{2}$

Substituting in equation 1 we get

$(x-3)^{2}=2$

Which is in the form of

$(x-a)^{2}=b$

On comparing we get

a = 3 and b = 2

Therefore values of a and b are

$a=3\ and\ b = 2$

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3 years ago

What multiplies to be -63 and adds up to be -2

Lyrx [107]

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Draw a box and whiskers plot of the numbers 7,4,7,5,5,3,7,6,7

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Answer

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Step-by-step explanation:

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2 years ago

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