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ycow [4]
3 years ago
12

What is the missing term to make these ratios equal 21 : 3 = :9

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
7 0

Answer:

63:9 is equal to 21:3

Step-by-step explanation:

Zielflug [23.3K]3 years ago
4 0
63. The ratio 63:9 is equal to 21:3 because 3x3 is 9 and 21x3 is 63
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Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = 5 cos 3θ
Aneli [31]
First of all get a picture of what this looks like. Desmos is a pretty good graphing program, but anything that will do polar coordinates will work. 

Here is the graph.

What you can see is that this graph is symmetrical around the x axis.

When you talk about symmetry, you can think of it as taking a mirror and putting it where you think there is symmetry. If you can't tell the difference between the image and the real thing, then you have symmetry.

In this case, the mirror will show symmetry along the x axis and no where else.

4 0
3 years ago
Read 2 more answers
8-2b=-2 (b=-3, b=0, b=5)
kykrilka [37]
B=5 because 
8-2b=-2
-8      -8
-----------

-2b=-10
-----------
-2        -2



b=5


5(-2)=-10
4 0
3 years ago
(4 - 10) - ( 8 ÷ ( -2))
NeTakaya
The answer would be -2

(4-10)-(8 ÷(-2))

(-6)-(-4)

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-2
5 0
3 years ago
Read 2 more answers
Divide 72 in a ratio of 1:3:5
likoan [24]
<span>1+3+5 = 9

72/9 = 8

1 x 8 = 8
3 x 8 = 24
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</span><span>72 in a ratio of 1:3:5 = 8:24:40</span>
6 0
3 years ago
Can someone help I have a picture ?
aleksklad [387]

Answer:

Yes! Wheres the pic? I'll awnser in the comments on this!

4 0
3 years ago
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