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Harrizon [31]
3 years ago
11

For the figures that have rotational symmetry, list the angles of rotation less than 360 degrees. For figures without rotational

symmetry, write “no rotational symmetry”.
Please show all work and not just the answers.

Mathematics
1 answer:
elixir [45]3 years ago
6 0
Answer:
This shape has no rotational symmetry.

Explanation:
Shapes with rotational symmetry have the property of looking the same after being rotated a degree smaller than 360.

Although this shape in the image does have symmetry, it does not have rotational symmetry because there is no way for it to look the exact same after being rotated.

I hope this helps!
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In the diagram below, BD is parallel to XY. What is the value of x?
Andrew [12]
Since the diagram represents parallel lines cut by a transversal line, the angles formed by these lines follow a series of rules. One of them is that corresponding angles are equal. Corresponding angles can be identified because they are located in the same position on different "crosses" formed by lines. In this case, angle x and the angle labeled 83° are corresponding angles and are therefore equal. We then know that angle x is 83° so choice B is correct.

I hope this helps.
6 0
3 years ago
8. which of the following ordered pairs is a solution of the given system of linear equations
V125BC [204]

Answer:

Option D The solution of the system is the point (-3,5)

Step-by-step explanation:

we have

x+y=2 -----> equation A

y=-2x-1 ------> equation B

Solve the system by substitution

Substitute the equation B in equation A and solve for x

x+(-2x-1)=2

-x-1=2

x=-2-1

x=-3

Find the value of y

y=-2x-1

y=-2(-3)-1

y=5

therefore

The solution of the system is the point (-3,5)

3 0
2 years ago
A jewelry store is featuring a diamond in the shape of a square pyramid. The side length of
BARSIC [14]

Answer:

128√5/3 mm³

Step-by-step explanation:

Since we are not told what to find, we can as well look for the volume of the pyramid

Volume of a square pyramid: V = (1/3)a²h

a is the side length of the square

h is the height of the pyramid

Given

a = 8mm

l² = (a/2)² + h²

l² = (a/2)² + h²

6² = (8/2)² + h²

h² = 6² - 4²

h² = 36 - 16

h² = 20

h = √20

Volume of a square pyramid =  (1/3)*8²*√20

Volume of a square pyramid = 1/3 * 64 * 2√5

Volume of a square pyramid = 128√5/3 mm³

7 0
2 years ago
Dividing a whole number by a unit fraction results in a:
Alex Ar [27]

Answer:

each unit being divided into smaller parts

Step-by-step explanation:

7 0
2 years ago
Jenin andrea marie are picking apples andre pics three times as many pounds as maria jane picks two times as many pounds is andr
Sindrei [870]
<span>Let x=apples that Andre picks
Then x/3=apples that Maria picks
And 2x=apples that Jane picks 
Soooo, 
x +(x/3)+2x=840 multiply each term by 3

3x+x+6x=2520 collect like terms
10x=2520
x=252</span>
5 0
3 years ago
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