3 years ago

How do i define surface area and explain how we go about solving it in mathematics?

1 answer:

3 0

Answer:

Surface area is the area inside of a shape or closed place. There are differnet formulas in math to get the surface area like length X width

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Please help. I’ll mark you as brainliest if correct!

OLEGan [10]

Answer:

x +0y+0z = 400

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Step-by-step explanation:

The last column is the solution

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Two girls and two boys went to the festival. The total cost of their tickets was $20. Each child paid the same amount for a tick

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3 years ago

1. Of the light bulbs available at a store, 42% are fluorescent, 23% are labeled as long life, and 12% are fluorescent and long

Novosadov [1.4K]

Answer:

Step-by-step explanation:

Given

42% bulbs are fluorescent

23 % bulbs are long life

12% bulbs are fluorescent and long life

(i)Selected Bulb is not Fluorescent $=1-P(bulb\ i\ fluorescent)$

$=1-0.42=0.58$

(ii)Selected light bulb is fluorescent given that it is labelled as long life

$P(Fluorescent\ given\ it\ long\ life)=\frac{P(fluorescent\ and\ long\ life)}{P(long\ life)}$

$P(Fluorescent\ given\ it\ long\ life)=\frac{0.12}{0.23}=0.52$

b.Fluorescent and long life events are not independent because if a bulb is fluorescent then it may be long life

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4 years ago

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