3 years ago

What system of linear inequalities is represented by the graph?

Mathematics

1 answer:

Mice21 [21]3 years ago

6 0

You're welcome brain

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Evaluate b^2 for b= -4

tekilochka [14]

Answer:

Step-by-step explanation:

b^2

Let b= -4

(-4)^2

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3 years ago

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If (-1,4) and (3,-2) are end points of diameter of the circle, then the equation of the circle is

Volgvan

Answer:

If you've more doubts you can ask :)

Step-by-step explanation:

If the centre of a circle is (a, b) and radius r, then the equation of the circle is :

$(x - x)^2 + (y-b)^2 = r^2$

First we will find the centre, (a , b):

$a = \frac{3+(-1)}{2} = \frac{2}{2} = 1\\\\b = \frac{-2 + 4}{2} = \frac{2}{2} = 1$

Find radius:

$Radius, r = \frac{Diameter}{2}$

Diameter is the distance between (-1, 4) and (3, -2)

$diameter = \sqrt{(x_2 - x_1)^2 +(y_2-y_1)^2} \\\\$

$= \sqrt{(3-(-1)^2 + (-2-4)^2} \\\\=\sqrt{16 + 36}\\\\=\sqrt{52}\\\\=\sqrt{4 \times 13}\\\\=2\sqrt{13} \ units$

Therefore , $r = \frac{2 \times \sqrt{13} }{2} = \sqrt{13} \ units$

Equation of the circle is :

$(x - 1)^2 +(y-1)^2 = 13$

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3 years ago

There are 10 less red skittles than orange skittles in the bag. The orange skittles are also twice the number of red skittles. F

Dmitry_Shevchenko [17]

20 skittles double the number of red

the red skittles have 10 skittles the orange skittles have 20 so its additon

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3 years ago

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Akimi4 [234]

Answer:

849.9 cm squared

Step-by-step explanation:

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3 years ago

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The product of a number and 4 increased by 16 is -2

Art [367]

The answer is -4.5

To solve these types of problems it's best to work backwards.
-2 - 16 = -18
4 x (n) = -18
n = -18/4
n = -4.5

3 0

3 years ago