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alexandr1967 [171]
2 years ago
8

What is the order and angle of rotation symmetry of a regular octagon?​

Mathematics
1 answer:
cestrela7 [59]2 years ago
8 0

Answer:

8,45* I think is the correct answer

Explanation:

Hope this helps.

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Can someone help me please
Digiron [165]

Answer:

x= 70°

Step-by-step explanation:

the lines overlapping the two sides on the triangle mean that those two sides are congruent, meaning that both of those angles would be equal to 70°

8 0
2 years ago
Explain how you can use place value patterns to describe how 50 and 5000 compare
salantis [7]
The place value pattern is a system of patterns of tens in which every place value is ten times the value on its right. The place value pattern system is used to <span>write numbers that are 10 times as much as or 1/10 of any given number. 
The place values in the pattern are: ones, tens (10*ones), hundreds (10*tens), thousands (10*hundreds),...
So, 50 = 5 tens 
       5000= 5 thousands, 0 hundreds, 0 tens, 0 ones

So, 5000 > 50</span>
3 0
3 years ago
Suppose cos(O) = 12/13, Quadrant I. Find sin(O).<br> A:13/12<br> B:5/13<br> C:13/5<br> D:5/12
noname [10]

Answer:

B: 5/13

Step-by-step explanation:

pythagoras theorem: a^2 + b^2 (sides) = c^2 (hypotenuse)

a^2 + 12^2 = 13^2

a^2 + 144 = 169

a^2 = 25

a = 5

sin = opp/hyp

sin 5/13

Hope this helps

7 0
2 years ago
Twice the sum of a number and 3 is equal to three times the difference of the number and 7. Find the number
Agata [3.3K]

Answer:

The number is 27

Step-by-step explanation:

Let us change the word statement to an algebraic equation

→ Assume that the number is x

→ Twice the sum of a number and 3, means add x by 3, then multiply the sum by 2

→ The algebraic expression is 2(x + 3)

→ Three times the difference of the number and 7, means subtract x and 7, then multiply the difference by 3

→ The algebraic expression is 3(x - 7)

→ Equate the two expressions

∴ 2(x + 3) = 3(x - 7)

→ Simplify each side

∵ 2(x + 3) = 2(x) + 2(3) = 2x + 6

∵ 3(x - 7) = 3(x) - 3(7) = 3x - 21

∴ 2x + 6 = 3x - 21

Let us solve the equation to find x

→ Subtract 6 from both sides

∴ 2x + 6 - 6 = 3x -21 - 6

∴ 2x = 3x - 21

→ Subtract 3x from both sides

∴ 2x - 3x = 3x - 3x - 27

∴ -x = -27

→ Divide both sides by -1

∴ x = 27

The number is 27

6 0
3 years ago
One of two complementary angles is 4 degrees more than the other. Find the angles. (Recall that complementary angles are angles
emmasim [6.3K]
   
\displaystyle  \\ &#10;\alpha + \beta = 90^o \\ &#10;\alpha - \beta = 4^o \\ &#10;\texttt{----------- } +  \\ &#10;2\alpha ~~/~= 94^o \\  \\ &#10;\alpha  =  \frac{94}{2} = \boxed{47^o}\\  \\ &#10; \beta = 90 -\alpha  = 90 - 47 = \boxed{43^o}&#10;



8 0
3 years ago
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