3 years ago

A circle with area 36 pi has a sector with a central angle of

Mathematics

1 answer:

abruzzese [7]3 years ago

7 0

Answer: 36 pi over 7.5

Step-by-step explanation:

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Four sevenths plus five sixths

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What are the factors of x2 – 4x – 5? Check all that apply.

harkovskaia [24]

When you factor (x^2-4x-5), you get (x+1)(x-5).

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Select all the correct answers Which functions are the same as their inverse functions?

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Answer:

f(x)

Step-by-step explanation:

f(x)=x-1/x+5

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xy+5y=x-1

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3 years ago

I don’t understand. and someone please help?

givi [52]

Solution:

Note that:

6x + 26 = 92 (Vertically opposite angle)
92 + 92 + z + z = 360

Finding x.

6x + 26 = 92
=> 6x = 92 - 26
=> 6x = 66
=> x = 11

Finding z.

92 + 92 + z + z = 360
=> 184 + 2z = 360
=> 2z = 360 - 184
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2 years ago

Write the equation x² + 6x + y² – 8y = 19 in standard form.

kirza4 [7]

Answer:

Formula used :

x²+2xy+y² = (x+y)²
x²-2xy+y² = (x-y)²

$→{x}^{2} + 6x + {y}^{2} - 8y = 19 \\ ({x}^{2} + 2.3.x + {3}^{2} ) +({y}^{2} - 2.4.y + {4}^{2} ) = 19 + {3}^{2} + {4}^{2} \\ {(x + 3)}^{2} + {(y - 4)}^{2} = 19 + 9 + 16 \\ \boxed{ {(x + 3)}^{2} + {(y - 4)}^{2} = 44}✓$

3) (x+3)²+(y-4)²=44 is the right answer.

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