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zhuklara [117]
2 years ago
8

HELPPPP Select the figure with four lines of symmetry and a 90° angle of rotational symmetry.

Mathematics
1 answer:
Elis [28]2 years ago
5 0

Answer:

b

Step-by-step explanation:

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Write the polar form of a complex number in standard form for <img src="https://tex.z-dn.net/?f=8%5Bcos%28%5Cfrac%7B%5Cpi%7D%7B2
laila [671]

Answer:

Solution : 8i

Step-by-step explanation:

We can use the trivial identities cos(π / 2) = 0, and sin(π / 2) = 1 to solve this problem. Let's substitute,

8\left[cos\left(\frac{\pi }{2}\right)+isin\left(\frac{\pi \:}{2}\right)\right] = 8\left(0+1i\right)

And of course 1i = i, so we have the expression 8(0 + i ). Distributing the " 8, " 8( 0 ) = 0, and 8(i) = 8i, making the fourth answer the correct solution.

7 0
3 years ago
We are learning how to find the volume of a prism. Look at the picture and please help me understand it I need the answer
Arturiano [62]
The volume is 96. 
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v=6*3*3=54
v=2*3*7=42
54+42=96

Hope this helps 

6 0
3 years ago
Whats the answer? please reply quickly.
evablogger [386]

Answer:

2 1/3 cups of flour for every dozen muffins

Step-by-step explanation:

1 1/2 dozen muffins equals 3 1/2 cups of flour which is also the same as 7/2 cups of flour.  I know that (3) 1/2 dozen equals 1 1/2 dozen so I divided 7/2 by 3 which is 1 1/6 to get how much flour for 1/2 dozen then multiplied it by 2 to get how much flour in a dozen = 2 2/6 which simplified is 2 1/3.

7 0
3 years ago
Two cars start from the same point and move in a straight line, one east at a speed of 60 km per hour and the other west at a sp
Tpy6a [65]

Answer:

I m not sure but i tried east 46200 west 61600

6 0
3 years ago
Fill in the missing term 4 (s+1)=4
Mamont248 [21]
Hello

4 ( s + 1) = 4
4 s + 4 = 4 
4 s = 4 - 4
4 s = 0
s = 0 
8 0
3 years ago
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