3 years ago

Classic Probability

Mathematics

2 answers:

Ostrovityanka [42]3 years ago

7 0

Answer:a

Step-by-step explanation:

muminat3 years ago

5 0

A if the probability is 70percent that means that 70 times out of 100 you will have the event happen. If you reduce that number by 10 (divide top and bottom by 10) you get 7/10 or 7 out of 10 times

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A person is watching a boat from the top of a lighthouse. The boat is approaching the lighthouse directly. When first noticed, t

Zina [86]

check the picture below.

bearing in mind that there are 60 minutes in 1 degree, then 16°18' will be 16.3° and likewise 48°51' will be 48.85° if we convert those to degrees only.

$\bf y=\cfrac{200}{tan(48.85^o)}~\hspace{10em}x=\cfrac{200}{tan(16.3^o)}-y \\\\\\ x=\cfrac{200}{tan(16.3^o)}-\cfrac{200}{tan(48.85^o)}\implies x\approx 683.95 - 174.78\implies x\approx 509.17$