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3 years ago

Use substitution to determine the solution of the system of equations.

Mathematics

1 answer:

sineoko [7]3 years ago

4 0

Answer:

Step-by-step explanation:

Work the equations out to find your answer to each, then you see the answer

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Please help I will give brainliest.

aleksley [76]

A polygon that has both reflectional and rotational symmetry includes:

B. Square
C. Triangle
E. Equilateral Triangle.

<h3>What is a polygon?</h3>

A polygon is a closed curve made up of a set of line segments (sides) connected in such a way that no two segments cross.

Examples of polygons are triangles (three sides), quadrilaterals (four sides), and pentagons (five sides).

Triangle, square, and other quadrilaterals have both line symmetry and rotational symmetry.

Thus, a polygon that has both reflectional and rotational symmetry includes Options B, C, and E.

Learn more about polygons and reflectional and rotational symmetry at brainly.com/question/1592456 and brainly.com/question/18633533

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4 0

2 years ago

Find the length and widgh of a rectangle with an area of 2x squared + x -3

Hitman42 [59]

This is an example

Your length of the rectangle is 2 times the width.
Let length = 2x
Let width = x
Now your area = 450m^2
2x.x = 450 ("." means multiply)
2x^2 = 450
Therefore x^2 = 225
Therefore x= 15
If your x=15 , then you know your width.
Length = 2x (2 x 15 = 30)
Therefore:
Length = 30m
Width = 15m
Hope that helped! :)

7 0

3 years ago

It says "write the fraction in the simplest form." i want the answer, the fraction is '27/36'

adell [148]

Answer:

3/4

Step-by-step explanation:

6 0

3 years ago

Definitions given.

Yuki888 [10]

The pitch of the roof is given by the ratio of the rise to the run of the roof, which is the slope of the rafter

$The \ pitch \ of \ the \ roof \ is \ \mathbf {\dfrac{6}{13}}$

Please find attached the simple <u>diagram of the house</u> with all measurements labeled

The reason the above value for the pitch and the diagram are correct are as follows:

The given parameters are;

Width of the section of the house on which the gable of the roof is to be placed = 50 feet

Length of the over hang on the sides of the roof = 1 foot each

Total span of the roof = 52 feet

Horizontal length of each rafter, the run = 26 feet

The height of the ridge above the top of the frame, the rise = 12 feet

Required:

To find the pitch of the roof

To draw a diagram of the house showing measurements

Solution:

$Pitch = \dfrac{Rise}{Run}$

$Pitch \ (slope) \ of \ roof = \dfrac{12}{26} =\dfrac{6}{13}$

Please find attached the <u>diagram</u> of the house showing the measurements for the roof parameters and the section of the house where the gable roof is to be placed

Learn more about finding the slope of a line here:

brainly.com/question/18990889

brainly.com/question/17105217

brainly.com/question/20987659

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3 years ago

How many one third cubes are needed to fill the gap in the prism shown below? O 4

allsm [11]

Answer:

24 is the answer...good luck

3 0

3 years ago