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Harman [31]
3 years ago
11

A polygon has rotational symmetry of 22.5°. How many sides does the polygon have?

Mathematics
1 answer:
Svetlanka [38]3 years ago
6 0
You such you push off is in
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-8 + 4 is equivalent to?<br><br> -12<br> 12<br> -4<br> 4
bagirrra123 [75]
The answer is -4. Hope this helps!!
5 0
2 years ago
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Determine whether quantities vary directly or inversely and find the constant of variation. If 5 bushels of wheat weigh 136 kg,
pentagon [3]

Let the bushels of wheat is b and weight of the wheat is w.

We can say that more the bushels of wheat more will be the weight of the wheat.

Hence, the quantities  vary directly.

Therefore, we have

b=kw,  where k is the constant of variation.

Now, we have been given that 5 bushels of wheat weigh 136 kg. Thus, we have

5=136k\\&#10;\\&#10;k=\frac{5}{136}

Thus, the constant of variation is  \frac{5}{136}

Now, we have been given 3.5 bushels of wheat. Hence, we have

3.5=\frac{5}{136} w\\&#10;\\&#10;w=\frac{136\times 3.5}{5} \\&#10;\\&#10;w=95.2

Therefore, 3.5 bushels of wheat weigh 95.2 kg


4 0
4 years ago
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Which expression is the factorization of x2 + 10x + 21?
densk [106]

You must remember that a polynomial is written like so...

ax^2 + bx + c

In this case...

a = 1

b = 10

c = 21

To factor you must find two numbers who both add up to b (10) AND multiply to c (21)

3 + 7 = 10

3 * 7 = 21

so...

(x + 3 )(x + 7)

Hope this helped!

~Just a girl in love with Shawn Mendes

5 0
3 years ago
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1. Which expression is equivalent to 4(x + 1) – 7(x + 3)?
Nadusha1986 [10]

Answer:

Ez -3x+25

Step-by-step explanation:

4x+4-7x+21=

-3x+25

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7 0
3 years ago
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(-8 squareroot 3 +8i) ^1/2
a_sh-v [17]

Answer:

1= ehfwfkssegsgjks

Step-by-step explanation:

5 0
3 years ago
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