What is the area of the composite figure?

Mathematics

1 answer:

zubka84 [21]3 years ago

5 0

Answer:

6pi + 16

Step-by-step explanation:

Area of a semi-circle is (pi*r^2)/2

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15 percent of 9 dollars is $?

Nataly_w [17]

Answer:

pretty sure it's 1.35

Step-by-step explanation:

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4 0

3 years ago

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When the movie is half over, popcorn sells for half price. Full price popcorn is $3.50, and drinks are $1.35. Determine the cost

Nady [450]

Full price of popcorn: $3.50
Price of popcorn after half the movie: $1.75
price of drinks: $1.35

The question is....."Determine the cost for purchasing 3 orders of popcorn and 3 drinks when the movie is half over."

$1.75*3=$5.25
$1.35*3=$4.05

the price of the 3 orders of popcorn would be $5.25
The price of the 3 orders of drink would be $4.05

5.25 + 4.05 = $9.30

In total the 3 orders of popcorn and 3 orders of drink would cost $9.30

Hope this helps! :)

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3 years ago

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A parking lot contains 100 cars , k of which happen to be lemons. we select m of these cars

Sunny_sXe [5.5K]

Given that a parking lot contains 100 cars, k of which happen to be lemons.

This is a conditional probability question.

Let event A be that a car is tested and event B be that a car is lemon.

The probability that a car is lemon is given by $\frac{k}{100}$

The probability that a car is tested is given by $\frac{m}{100}$

The probability that a car is lemon and it is tested is given by $\frac{n}{m}$

For a conditional probability, the probablility of event A given event B is given by:

$P(A|B)= \frac{P(A\cap B)}{P(B)}$

Therefore, the probability that a car is lemon, given that it is tested is given by.

$P(lemon|tested)= \frac{P(lemon\, and\, tested)}{P(tested)} \\ \\ = \frac{ \frac{n}{m} }{ \frac{m}{100} } = \frac{n}{m} \times \frac{100}{m} = \frac{100n}{m^2}$