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taurus [48]
3 years ago
15

Is a octagon concave or convex

Mathematics
2 answers:
Verizon [17]3 years ago
7 0

Answer:

It could be either, depends on the image:

Step-by-step explanation:

If it has an angle more than 180 degress, it is convex, if it doesn't, it's concave

alexandr1967 [171]3 years ago
5 0

Answer:

convex

Step-by-step explanation:

its convex because it has six outer perimeters

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A line is perpendicular to y = -1/2x-1
brilliants [131]

Answer:

y= 2x -3

Step-by-step explanation:

The first thing you should know is that the slope of a perpendicular line is the opposite reciprocal. So, this is your current equation: y= 2x + b. Next, substitute your point into the equation to get the y-intercept. It should look like this: 9=2(6) + b. 6 times 2 equals 12. Now, this is what it should look like: 9=12 + b. Subtract 12 from both sides to get -3 = b. Go back to your original equation and plug in -3 to b. This is your final equation: y= 2x -3. Hope this helped!

4 0
3 years ago
The range of a set of data is 15, and the interquartile range of the same set is 12. Which of the following statements is probab
antiseptic1488 [7]
The answer would be (The two ranges are close together, so there are probably no outliers in this set. )
6 0
3 years ago
(x-1)^2+(2-x)^2-3(x-5)*(x-5)
Natali5045456 [20]

Answer:

-x^2+24x-70

Step-by-step explanation:

(x-1)^2+(2-x)^2-3(x-5)*(x-5)\\=> (x - 1)^2 + (2 - x)^2 - 3(x - 5)^2\\=> x^2 - 2x + 1 + 4 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 2x + 5 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 6x + 5 + x^2 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x^2 - 10x + 25)\\=> 2x^2 - 6x+5  - 3x^2+30x-75\\=> -x^2 - 6x + 5 + 30x - 75\\=> -x^2 + 24x + 5-75\\=> -x^2+24x-70

Formula used =

(a-b)^2 = a^2+ 2ab + b^2

8 0
2 years ago
Use the balanced scale to find the conversion factor that can be used to convert the number of blocks to the weight of the block
77julia77 [94]

Answer:

x = 2 1/4 or 2.25

Step-by-step explanation:

to start we can make an equation

9lbs = 4x

divide by 4

9/4 = x

x = 2.25 or 2 1/4

4 0
2 years ago
3w-1 divided by 3 minus 2w+1 divided by 3 =1
LiRa [457]

Answer:

w = 5

Step-by-step explanation:

(3w - 1) ÷ 3 - (2w + 1) ÷ 3 = 1

(Graph, just switch w to x)

3 0
2 years ago
Read 2 more answers
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