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3 years ago

Hi everybody!

Mathematics

1 answer:

Irina-Kira [14]3 years ago

5 0

That answer is A and B pick one

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One of the angles of a regular decagon is 144°. What is the sum of the measures of all the interior angles of this decagon? A. 9

svp [43]

Answer:

The answer would be c. 1440

Step-by-step explanation:

one of the angels would be 144 so you're gonna have to end up multiplying it by 10 which leads to 1440

5 0

3 years ago

Read 2 more answers

What is the best description for the lines

jeyben [28]

Answer:

Lines are described as connecting curve joining two points.

Step-by-step explanation:

In coordinate geometry, graph theory, we have points which do not occupy any space.

Any two points can be connected by a curve or a straight line. If two points are joined by a straight line, then we have the slope of the line i.e. the tangent of angle of the line with x axis is constant.

Straight lines would be of the form ax+by+c=0

Hence in equation form, lines would have equations in linear form of both x and y.

Lines have constant slope throughout the region.

Lines can be extended from -infinity to +infinity

Any two distinct points can make a line, but 3 points need not lie on the same line.

7 0

3 years ago

One-third of a number is 12 Work out one-half of the number

marshall27 [118]

If 1/3 = 12, then multiply 12 by 3 to get the number, which is 36

then split 36 in half, and you get 18.

hope this helps!

4 0

3 years ago

Read 2 more answers

Each side of a square plastic tarp is 9 meters long. what is the tarps perimeter

emmainna [20.7K]

Answer:

Step-by-step explanation:

9 times 4

8 0

3 years ago

Question is below in picture.

Maurinko [17]

Answer:

C. $\sqrt{89}$ cm

Step-by-step explanation:

First, we can start out by stating that this is a right triangle, since it has a right angle, shown by the marker square in the corner of the triangle. The x part, is called the hypotenuse. When finding the value of the hypotenuse, we use a thing called the Pythagorean Theorem. This theorem is :

a^2 + b^2 = c^2

a is one side length, and b is the other. c is the hypotenuse. To find x, the hypotenuse, we simply plug in the values, and solve.

8^2 + 5^2 = c^2

64 + 25 = c^2

89 = c^2

To get c alone, we do the square root of 89.

$\sqrt{89}$ = c

9.43398113 = c

So, the answer is C. $\sqrt{89}$ cm

6 0

2 years ago