3 years ago

A circle has a radius of 6 units. Find the area of a sector with an arc length of 9 units.

Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

5 0

Answer:

I would need a picture but go on g0ogle and I bet they have it on there

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Murrr4er [49]

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3 years ago

Factor the quadratic equation below to reveal the solutions. X^2+4x-21=-9

a_sh-v [17]

Answer:

x = 3 and x = -7

Step-by-step explanation:

The given quadratic equation is $x^2+4x-21=0$ . We need to find the solution of this equation.

If the equation is in the form of $ax^2+bx+c=0$ , then its solutions are given by :

$x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}$

Here, a = 1, b = 4 and c = -21

Plugging all the values in the value of x, such that :

$x=\dfrac{-b+ \sqrt{b^2-4ac} }{2a},\dfrac{-b- \sqrt{b^2-4ac} }{2a}\\\\x=\dfrac{-4+ \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)},\dfrac{-4- \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)}\\\\x=3, -7$

So, the solutions of the quadratic equation are 3 and -7.

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3 years ago

Which of the following scenarios is least likely to be modeled by a quadratic function?

vampirchik [111]

I think the answer is c purplestar1

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3 years ago

HELP PLEASE I WILL GIVE YOU BRAINLIEST

Alja [10]

The answer is 600 because of the miles

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3 years ago

Please Help!!!

ValentinkaMS [17]

3 x 15 = 45
3 x 14 = 42

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There are 14 packages.

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x = 42/3

-----> 3x=42

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3 years ago