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Assoli18 [71]
2 years ago
14

Simplify 9/4 using fractions. ​

Mathematics
1 answer:
seropon [69]2 years ago
8 0

First to Answer:

The answer is 2 1/4

Have a great day!

Work:

9 divided by 4 is 2.25.

0.25 is equivalent to 1/4 and 2.00 is equivalent to 2.

put those together and you get 2 1/4.

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A soft drink manufacturer wishes to know how many soft drinks adults drink each week. They want to construct a 85% confidence in
andreev551 [17]

Answer: 547

Step-by-step explanation: The margin of error formulae is given below as

Margin of error = critical value ×(σ/√n)

Where σ = standard deviation and n is the sample size.

From our question, margin of error = 0.08

Variance is 1.691,

hence σ = √variance = √1.691

= 1.3.

We will be using a z test for our critical value this is because a soft drink manufacturer will always produce drinks more than 30 in numbers.

The critical value for a 85% confidence interval is 1.44.

Hence critical value is 1.44.

By substituting the parameters, we have that

0.08 = 1.44 × 1.3/ √n

0.08 = 1.873/ √n

By cross multiplying

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√n = 1.873/ 0.08

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Answer:

c

Step-by-step explanation:

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