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Naily [24]
3 years ago
9

A regular octagon rotates 360° about its center. How many times does the image of the octagon coincide with the preimage during

the rotation?
Mathematics
2 answers:
Phoenix [80]3 years ago
8 0
It has rotated 360 degrees means a complete revolution. 
As an Octagon has eight sides, it would be pre-image for eight times during the rotation.
So, your final answer is 8
Eva8 [605]3 years ago
4 0
The answer would be 8.
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vagabundo [1.1K]

Answer:

the cyan one b is greater than or equal to -16

Step-by-step explanation:

okay so b is at least (at least being the keyword) -16, at least means that -16 is the minimum

hope this helps:)

4 0
3 years ago
In the triangle below, which equation can be used to solve for x?
Murrr4er [49]
U forgot the attachment
4 0
2 years ago
Read 2 more answers
FIND BD !!!!!!!!!!!!!!!!!!!!
Viktor [21]

BD = 2x-4

But it's also BE - CE + CD

BE is 3x-1

CE is 2x-3

CD is 2

so

BD = 3x-1 -(2x-3) +2

simplified

BD = 1x +4

since BD = BD (obviously), we can also say that the righthand sides of the two equation must be equal

2x -4 = 1x +4

let's solve for x and that put it into either of the 2 equations.

2x -4 = 1x +4

subtract 1x on both sides

x -4 = 4

add 4 on both sides

x = 8

substitute x for its value in 2x -4 = 1x +4

(this way we double check BD in two expressions at once. the equation should come out true, meaning same value for BD in each expression. both sides should be equal).

2*8 -4 = 1*8 +4

12 = 12

seems true

BD is safely 12

4 0
3 years ago
A triangle has two sides of length 2 and 18. What is the largest possible whole-number length for the third side?
Snezhnost [94]

Answer:

19

Step-by-step explanation:

Given 2 sides of a triangle then the third side x is

difference of 2 sides < x < sum of 2 sides , that is

18 - 2 < x < 18 + 2

16 < x < 20

Then the largest possible length of the third side is 19

6 0
2 years ago
A projectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t
Alex787 [66]
You need to find the x-coordinate (h) of the vertex of the parabola.

-16t^2+704t=0\\&#10;h=-\dfrac{b}{2a}=-\dfrac{704}{2\cdot(-16)}=22&#10;

After 22 seconds.
4 0
3 years ago
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