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Advocard [28]
3 years ago
14

Assignment

Mathematics
2 answers:
stich3 [128]3 years ago
8 0

Answer:

D    

Step-by-step explanation:

Irina-Kira [14]3 years ago
5 0
Manda una captura a ver
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This is a test so it would be great if you could help! I suck at math lol
inna [77]

Answer:

3/2

Step-by-step explanation:

Order y pairs, you could do x pair if u wanted.

(9,3,3)

(6,2,2)

If u divided 9/6 it gives you 3/2 same with the other two pairs.

6 0
3 years ago
Ming works as a quality assurance analyst at a bottling factory. She wants to use a one-sample z interval to estimate what propo
Nastasia [14]

Answer:

Sample size is n=423

Step-by-step explanation:

Given that,

Margin of error =4%

Confidence level =90%

Suppose, sample proportion=0.5

        i.e. \hat{P}=0.5

We know that,

     Margin of error =2^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} }

 ∴ 1.64\sqrt{\frac{0.5(0.5)}{n} } \leq 4\%

\Rightarrow 1.64\sqrt{\frac{0.25}{n} } \leq 0.04

\Rightarrow \frac{0.5}{\sqrt{n} } \leq \frac{0.04}{1.64}

\Rightarrow \frac{0.5}{\sqrt{n} } \leq 0.0243

\Rightarrow \sqrt{n}\geq \frac{0.5}{0.0243}

\Rightarrow \sqrt{n}\geq 20.57

squaring on both side,

∴ n=423.1249

Hence, the sample size is,

   n=423

Hence, the correct option is (b).

       

7 0
3 years ago
The ratio of the surface areas of two similar solids is 49:100. What is the ratio of their corresponding side lengths?
algol13
<span>ratio of surface area = 49:100
ratio of corresponding lengths = √49:√100 = 7:10
answer: C

Hope this helps


</span>
3 0
3 years ago
Read 2 more answers
The diagram shows a cuboid.
nika2105 [10]
Cuboid has 6 faces. If each face was 2m squared, that would be 2m squared times 6 which is 12m squared
7 0
3 years ago
What multiplication problem equals 130
love history [14]
26*5 130 divided by 6=5
7 0
3 years ago
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