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Rufina [12.5K]
3 years ago
11

Ty makes balloon animals for birthday parties and wants to know what color balloons to buy. He surveys the 30 children closest t

o him. Identify the type of sampling method.
A. self-selected
B. systematic
C. convenience
Mathematics
1 answer:
SashulF [63]3 years ago
7 0
 C. convenience ;)))))))))))))                             
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Ira Lisetskai [31]
Answer is 0.5
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and same thing for the rest of the equation.
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Half a number plus 2.5 times that number equals 18. What is the number?
mixas84 [53]
Tua madre Puttana quella troia inculata schifosa
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3 years ago
À and have the same direction. ā has a magnitude of 8, and b has a magnitude of 5. What must be true about a and b?
Elena-2011 [213]

Answer: B, the are parallel but not equal. They are parallel line because they move in the same direction and they are not equal because they have different magnitude.

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2 years ago
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How do I solve this type of problem? I'm trying to find both missing values. Please explain how to solve this as thoroughly as y
goldenfox [79]
Hi there! 

In order to solve, we'll need to use a proportion: 20/a = 21/20. Then, we'll cross-multiply and solve to find a: 21a = 400 | a = 19.05. Next, to find b, we can just use pythagorean theorem: 20^2 + (400/21)^2 = b^2 | b = 27.62.
We are using geometric mean to solve for a, then using pythagorean theorem to solve for b. If you need more help with geometric mean, or would like a complete explanation, please let me know! I'd be happy to provide you with that information.

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
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3 years ago
I need help on 5 and 6 geometry
DiKsa [7]
That's 5 and that's 6

4 0
3 years ago
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