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BabaBlast [244]
2 years ago
14

for each of the following find, if possible, a whole number that makes the equation true. a. 3+ z=12 b. 36 = 18 + 3 •Z

Mathematics
1 answer:
Basile [38]2 years ago
6 0

Answer:

a. 9

b. 6

Step-by-step explanation:

a. z=12 - 3= 9

b. (36 - 18)/3= Z

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Answer: 68

Step-by-step explanation:

Formula for sample size when prior estimate of population proportion (p) is available:  n=p(1-p)(\dfrac{z^*}{E})^2

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As per given , we have

p=\dfrac{1}{5}=0.2

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Substitute all the values in the above formula , we get

Required sample size  :n=(0.2)(1-0.2)(\dfrac{(1.645)}{0.08})^2

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3 years ago
What’s the question mark
nikitadnepr [17]

Answer:

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Step-by-step explanation:

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Set up a proportion.

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Step-by-step explanation:

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