3 years ago

How do we use electromagnetic energy? No googled answer

Mathematics

2 answers:

Elena L [17]3 years ago

8 0

Answer:

Microwave,communication,radio

Step-by-step explanation:

sergeinik [125]3 years ago

8 0

Radio waves, microwaves, I fared radiation, visible light, x-rays, and gamma radiation.

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Is the negative square root of 9 rational or irrational

Nana76 [90]

Answer:

Rational

Step-by-step explanation:

-9 is rational because 9 is a perfect square and all perfect squares are rational.

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You work for a pharmacy and monthly sales of asthma inhalers in your pharmacy follows a normal distribution with a mean of 191 i

grin007 [14]

Answer: -1.33 .

Step-by-step explanation:

Formula to find the Z-score :

$Z=\dfrac{\text{Expected value - Mean}}{\text{Standard deviation}}$

Given: Mean = 191 and Standard deviation = 21

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$Z=\dfrac{163-191}{21}\\\\=\dfrac{-28}{21}\approx-1.33$

Hence, the z score corresponding to selling 163 inhalers is -1.33 .

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3 years ago

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