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2 years ago

What is the sum of the interior angles of the polygon shown below?

Mathematics

2 answers:

WARRIOR [948]2 years ago

5 0

Answer:

n = 5

(n-2) X 180

3 x 180

540 degrees

pls mark as brainliest

GalinKa [24]2 years ago

5 0

Answer:

(for brainliest) (alt acc)

Step-by-step explanation:

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2. How many real number solutions are there to the equation 0 =-3x2 + x - 4?

goblinko [34]

For this case we have the following quadratic equation:

$-3x ^ 2 + x-4 = 0$

Where:

$a = -3\\b = 1\\c = -4$

By definition, the discriminant of a quadratic equation is given by:

$d = b ^ 2-4 (a) (c)$

We have to:

$d> 0:$ Two different real roots

$d$ Two different complex roots

$d = 0:$ Two equal real roots

Substituting the values we have:

$d = 1 ^ 2-4 (-3) (- 4)\\d = 1-48\\d = -47$

So, we have two different complex roots

Answer:

Two different complex roots

7 0

2 years ago

The perimeter of another quilt had to be 34 feet because he only had that much binding. If he wanted it to be 8 feet long, what

Mila [183]

72ft
you do 8 times 2 is 16
34-16 is 18 then divide by 2 is 9
9 times 8 is 72
~JZ

7 0

2 years ago

Pls help I will give you a crown pls 13 points

boyakko [2]

Option C: $y = \frac{1}{2}x+\frac{5}{2}$ is the right answer

Step-by-step explanation:

Given points are:

(x1,y1) = (-1,2)

(x2,y2) = (3,4)

First of all, the slope has to be found

$m =\frac{y_2-y_1}{x_2-x_1}\\=\frac{4-2}{3+1}\\= \frac{2}{4}\\=\frac{1}{2}$

The slope-intercept form of line is:

$y = mx+b$

Putting the value of m

$y = \frac{1}{2}x+b$

Putting (3,4) in equation

$4 = \frac{1}{2}(3) +b\\4 = \frac{3}{2} +b\\b = 4 - \frac{3}{2}\\= \frac{8-3}{2}\\=\frac{5}{2}$

Putting the value of b

$y = \frac{1}{2}x+\frac{5}{2}$

Hence,

Option C: $y = \frac{1}{2}x+\frac{5}{2}$ is the right answer

Keywords: Equation of line, slope

Learn more about equation of line at:

#LearnwithBrainly

4 0

2 years ago

Please help me and please write the answer out

Vitek1552 [10]

15 degrees is the answer

6 0

2 years ago

Vcvvvv

VARVARA [1.3K]

I'm not sure Google it tho might help

5 0

2 years ago