3 years ago

HEELLELEEPEELPELP Okay thanks :D

Mathematics

1 answer:

Hunter-Best [27]3 years ago

7 0

the answer is d 180 because it is 6 times six which equals 36 then multiply by 5 equals 180

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

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3 years ago

What is 7/10 equivalent to write the answer in fractions

Romashka [77]

7/10 is equivalent to 3.5/5 is one

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3 years ago

Maya thinks there are twice as many players in the league with more than 4 years of experience than there are players with less

iragen [17]

Sorry don’t now the answer to this problem

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How do mental math strategies help you solve problems such as the ones above?

Luden [163]

With mental math, you can perform equations quickly and efficiently. They also help you to develop your own strategies and solve more complex math equations. Hope this helps;)

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3 years ago

What’s the correct answer for this question?

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Answer:

( -1 , 1 )

Step-by-step explanation:

(x1,y1) = (5,9)

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3 years ago