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2 years ago

A number x is equal to 7. 24. 48. What is the smallest positive integer y such that the product xy is a perfect cube

Mathematics

1 answer:

Tcecarenko [31]2 years ago

8 0

What’s the questionv

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rusak2 [61]

I think is 4.7 for SU, pls let me know if is right :).

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3 years ago

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k0ka [10]

X < 6

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3 years ago

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GaryK [48]

Answer:

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3 years ago

Simplify 3(6g+2) -5g

tresset_1 [31]

Answer:

13g +6

Step-by-step explanation:

3(6g+2) -5g

Distribute

18g +6 - 5g

Combine like terms

13g +6

4 0

3 years ago

A trucking firm has a large inventory of spare parts that have been in storage for a long time. It knowsthat some proportion of

Debora [2.8K]

Answer:

$0.1546\leq \widehat{p}\leq 0.3513$

Step-by-step explanation:

The firm tests 75 parts, and finds that 0.25 of them are notusable

n = 75

x = 0.25 \times 75 = 18.75≈19

$\widehat{p}=\frac{x}{n}$

$\widehat{p}=\frac{19}{75}$

$\widehat{p}=0.253$

Confidence level = 95%

So, Z_\alpha at 95% = 1.96

Formula of confidence interval of one sample proportion:

$=\widehat{p}-Z_\alpha \sqrt{\frac{\widehat{p}(1-\widehat{p}}{n}}\leq \widehat{p}\leq \widehat{p}+Z_\alpha \sqrt{\frac{\widehat{p}(1-\widehat{p}}{n}}$

$=0.253-(1.96)\sqrt{\frac{0.253(1-0.253)}{75}}\leq \widehat{p}\leq0.253+(1.96)\sqrt{\frac{0.253(1-0.253}{75}}$

Confidence interval $=0.1546\leq \widehat{p}\leq 0.3513$

7 0

4 years ago