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kupik [55]
3 years ago
12

One angle of an octagon is 65º. Theothers are equal to each other. Find them.​

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
8 0

Answer:

42 1/7 degrees

Step-by-step explanation:

65+7x=360

7x=295

x=42 1/7

Bumek [7]3 years ago
5 0
  • Answer:

<em>x = 145°</em>

  • Step-by-step explanation:

<em> the sum of interior angles of octagon formula</em>

<em>S = (n - 2)×180°</em>

<em>n = 8</em>

<em>S = (8 - 2)×180°</em>

<em>S = 6×180°</em>

<em>S = 1080°</em>

<em>we have 1 angle = 65° & others are equal to each other</em>

<em>1080° - 65° = 7x</em>

<em>7x = 1015°</em>

<em>x = 1015° : 7</em>

<em>x = 145°</em>

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What equation could generate the curve in the graph below
Marianna [84]

Answer:

A

Step-by-step explanation:

We know the y intercept is positive so that eliminates choice D.

y = 3x^2 -2x+1

This does not intercept the x axis

y = 3x^2 -6x+3

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

3(x-1)^2

This intercepts the x axis at 1

This is not the equation for the graph

y = 3x^2 -7x+1

Let x = 1

y = 3-7+1

  = -3

This will cross the x axis, so this cannot be the graph

5 0
3 years ago
Between which two integers does -6 lie​
Molodets [167]

Answer:

-5 and -7

Step-by-step explanation:

-5, -6, -7...

Mark as brainliest

4 0
3 years ago
Please help me ill give brainliest ​
Brrunno [24]

Answer:

9

-5 - 7(-2)

-5 - (-14)

+9

4 0
3 years ago
Read 2 more answers
PLEASE HELP! I am doing Imagine Math and I need help with this question!
Vaselesa [24]
The bottom left option is when it is reflected over the x axis, the second to last option on the left is when it is reflected of the y axis, and the middle option is when it is reflected over the line y = x

Hope this helps :)
5 0
2 years ago
Drag each expression to show whether it can be used to find the surface area, volume or neither​
Brut [27]

Answer:

Surface area:

2(12\times 6) +  2(6 \times 8) + 2(8 \times 12)

2((12\times 6) +  (6 \times 8) + (8 \times 12)

Volume :

(12 \times 6 \times 8)

Neither:

8(12 \times 6)

2(12 \times 6 \times 8)

12+6+8

Step-by-step explanation:

Surface area of the cuboid:

The Surface area of the cuboid = 2(lb) +2(bh)  +2(hl)

Where

l =length of the cuboid

b = Breadth of the cuboid

h = height of the cuboid

So ,

The surface area will be

SA = 2(12\times 6) +  2(6 \times 8) + 2(8 \times 12)

SA = 2((12\times 6) +  (6 \times 8) + (8 \times 12))

SA  =2(72+48+98)

SA = 2(216)

SA = 432

Volumes of the cuboid:

Volume  = length \times breadth \times height

Volume = (12 \times 6 \times 8)

volume = 576

4 0
4 years ago
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