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4 years ago

9/10 - 4/10 Put In Simplest form!

Mathematics

2 answers:

N76 [4]4 years ago

7 0

Answer:

1/2 or 0.5

Step-by-step explanation:

Greeley [361]4 years ago

5 0

Answer: 1/2 or 0.5

Step-by-step explanation:

The common denominator you can calculate as the least common multiple of the both denominators and Subtract: 9

- 4

= 9 - 4

= 5

= 1

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Answer:

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Step-by-step explanation:

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3 years ago

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4 years ago

Read 2 more answers

Can someone help me with this question.

koban [17]

We will set each parentheses equal to 0
x - 4 = 0
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3 years ago

1) A school has 1600 students and they are going to vote as to whether they will completely convert the school completely off fo

fredd [130]

Answer:

Standard deviation of the students = 0.408

The students would you have to poll to be 95% confident of the outcome within /- 2% of the vote

= 0.408 X 1600

= 652.8

Step-by-step explanation:

<u><em>Step(i):</em></u>-

Given sample size 'n' = 1600

95% confidence interval of the margin error is determined by

$M.E = \frac{Z_{0.05} S.D}{\sqrt{n} }$

Level of significance = 0.05

Z₀.₀₅ = 1.96

Given Margin of error = 2% = 0.02

$M.E = \frac{Z_{0.05} S.D}{\sqrt{n} }$

$0.02 = \frac{1.96 X S.D}{\sqrt{1600} }$

0.02 X √1600 = 1.96 X S.D

$S.D = \frac{0.02X\sqrt{1600} }{1.96} = 0.408$

Standard deviation of the students = 0.408

The students would you have to poll to be 95% confident of the outcome within /- 2% of the vote

= 0.408 X 1600

= 652.8

5 0

3 years ago