2 years ago

Simplify the radical /1829.

Mathematics

1 answer:

Airida [17]2 years ago

7 0

Answer:

Step-by-step explanation:

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m∠AED = m∠AEB + m∠BEC + m∠CED

179 = 105 + x + 40

x = 179 - (105+40) = 34

x = 34

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3 years ago

My divisor is 4/7 and my quotient is 7/24. what is the dividend

kompoz [17]

Answer:

1/6.

Step-by-step explanation:

x / 4/7 = 7/24 where x is the dividend.

7x/4 = 7/24

Cross multiply:

7x * 24 = 4*7

x = 28/(7*24)

= 28/168

= 1/6.

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2 years ago

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Oxana [17]

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Step-by-step explanation:

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

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3 years ago

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The answer to the equation is approximately 536.91

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