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4 years ago

Solve: 18 squared + x squared= 30 squared

Mathematics

2 answers:

Tanzania [10]4 years ago

5 0

The answer will be X = 24, -24

andreyandreev [35.5K]4 years ago

3 0

Answer:

x = 12

Step-by-step explanation:

First you can ignore the squared part for a moment and do

30 - 18 which equals 12

so... x = 12

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Answer:

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Step-by-step explanation:

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#The sample size is calculated as:

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3 years ago

10.A noted psychic was tested for ESP. The psychic was presented with 200 cards face down and askedto determine if the card was

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Answer:

Step-by-step explanation:

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$H_o: p = 0.20 \\ \\ H_1 : p > 0.20$

Thus; the test statistics is:

$Z = \dfrac{\hat p - p_o}{\dfrac{p_o(1-p_o)}{n} }$

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3 years ago