2 years ago

If there was a total of 80 vehicles an a percentage of 70% of cars how much car was used

Mathematics

1 answer:

Korolek [52]2 years ago

4 0

Answer:

Step-by-step explanation:

I don't quite understand your question but I assumed you meant what is 70% of 80

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vladimir1956 [14]

Answer:

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Step-by-step explanation:

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2 years ago

In a study investigating a link between walking and improved health, researchers reported that adults walked an average of 873

Rainbow [258]

Answer:

$H_0:\mu =873\\\\H_a: \mu$

Step-by-step explanation:

Given : In a study investigating a link between walking and improved health, researchers reported that adults walked an average of 873 minutes in the past month for the purpose of health or recreation.

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i.e. $\mu$

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$H_0:\mu =873\\\\H_a: \mu$

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2 years ago

Find the product of z1 and z2, where z1 = 5(cos 60° + i sin 60°) and z2 = 7(cos 210° + i sin 210°)

Verizon [17]

Answer:

cos210=cos(180+30)=−cos30=−√32 . sin210=sin(180+30)=−sin30=−12 . 3(cos210+isin210) =3(−√32)+3i(−12). −(32)√3−(32)i. My favourite way of seeing that sin30=12 and cos30=√32 is ...

Step-by-step explanation:

But that's what I say personally

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