2 years ago

I need the answer. helpppppppppppp plzz

Mathematics

1 answer:

Liula [17]2 years ago

8 0

Answer:lla te alldo pliss

Step-by-step explanation:

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A side of the triangle below has been extended to form an exterior angle of 72°. Find the value of xx

frozen [14]

x + 20 = 72

x + 20 - 20 = 72 - 20

x = 52

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2 years ago

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How to complete the square with a leading coefficient?

Kamila [148]

Factor out the leading coefficient:

$ax^2+bx+c=a\left(x^2+\dfrac bax+\dfrac ca\right)$

Now complete the square:

$x^2+\dfrac bax+\dfrac ca=x^2+\dfrac bax+\dfrac{b^2}{4a^2}-\dfrac{b^2}{4a^2}+\dfrac ca=\left(x+\dfrac b{2a}\right)^2-\dfrac{b^2}{4a^2}+\dfrac{4ac}{4a^2}=\left(x+\dfrac b{2a}\right)^2-\dfrac{b^2-4ac}{4a^2}$

Now, redistributing the leading $a$ gives

$a\left(x+\dfrac b{2a}\right)^2-\dfrac{b^2-4ac}{4a}$

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3 years ago

I need help!!!! Anyone know the answer?

Karolina [17]

Answer:

I would say divide the two number the round to the nearest ten

Step-by-step explanation:

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3 years ago

Samira ran 3 more miles than twice the number of miles Ada ran. Which statement makes this comparison using the correct variable

const2013 [10]

2a+3=s

I used the first letter of the name, or you can use x and y in place of a and s

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3 years ago

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in the diagram, AE is tangent to the circle at point a and secant DE intersects the circle at point C and D. the iines intersect

AlexFokin [52]

Recall the secant-tangent theorem, and you have
EA^2 = EC*CD
12^2 = 8*(x+10)
and now ED = EC+CD = 8+x+10

I suspect a typo somewhere in the murk above

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1 year ago

I need the answer. helpppppppppppp plzz​

I need the answer. helpppppppppppp plzz