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Vesna [10]
3 years ago
8

What is the value of c in the equation below?

Mathematics
1 answer:
gladu [14]3 years ago
8 0

Answer:

b

Step-by-step explanation: since i helped can i have brainlist please :D

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A regular octagon with side length a cm can be made by cutting off
Ksivusya [100]

Answer:

one side = \frac{a\sqrt{2}}{2}

Step-by-step explanation:

if you draw an octagon on a piece of paper, you can draw a square around it, you should be able to see a diagram of this attached, ignore the 6.

Let's say TP = a

since it's a regular octagon, TP = HT

and using the Pythagoras Theorem,  we know a² + b² = c² and thus:

√(AT² + HA²) = HT

and since AT = HA which we will call x, the equation becomes:

√(2x²) = HT = a

rearrange the equation to solve for x and you get:

2x² = a²

x² = \frac{a^{2} }{2}

x = \frac{a}{\sqrt{2}}

which, if you rationalise the denominator, you get:

x = \frac{a\sqrt{2}}{2}

5 0
3 years ago
This is just for fun!
bixtya [17]
Addition or multiplication
add 2 or times 2
8 0
3 years ago
Ill give brainliest to the correct answer
Alexxandr [17]

Answer:

7 x 4 = 28

28 x 1/2(dividing by 2) = 14, 14 x 2(two triangles) = 28

4 x 5 = 20(area of square in the middle)

5 x 8 = 40(area of square on one side), 40 x 2 = 80(area of squares on both sides)

Now lets add the given areas:

28 + 20 + 80 = 128 square is your answer.

3 0
2 years ago
In order to make 6 dozen cookies, you must use 3 eggs in the batter. How many eggs would be required to make 48 dozen cookies? U
Brrunno [24]

24

Step-by-step explanation:

Well 6 times 8 is 48 so

8 times 3 is 24

7 0
3 years ago
Read 2 more answers
If x equals 2 what is the answer to the problem 3x(x-2)plus 2
Verdich [7]

Answer:

the answer should be 2 but it could be wrong

4 0
3 years ago
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