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Elis [28]
3 years ago
14

Please help!! giving points and available!!:)

Mathematics
2 answers:
Makovka662 [10]3 years ago
8 0

Answer:

19.9 cm

Step-by-step explanation:

os that a 3.4 in the very left? if so...this should be it.

alekssr [168]3 years ago
5 0

Answer:

15.58 cm²

Step-by-step explanation:

Let's calculate the whole shape's area and subtract.

5.5 + 3 = 8.5

8.5 × 3.4 = 28.9 cm²

2 × 6 = 12 cm²

2 + 1 = 3

3.4 - 3 = 0.4

0.4 × 3.3 = 1.32 cm²

28.9 cm² - 12 cm² - 1.32 cm² = 15.58 cm²

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Suppose a jar contains 5 red marbles and 25 blue marbles. If you reach in the jar and pull out one marble at random, do not repl
dsp73

Answer:

Probability that event will have both red marbles will be 2.3% or 0.023.

Step-by-step explanation:

Given:

Total red marbles=5

Total blue marbles=25

Total number of marbles =30

To Find:

The probability that both are red without replacement of marbles.

Solution:

Now

Total sample space is 30 and total red marbles are 5

For a event that getting red marble probability is ,

=Total red marbles /total marbles.

=5/30

=1/6

So probability if getting red marble is 1/6

<em>Now for second chance there will be 4 red marbles remaining and 29 total marbles so,</em>

In second chance  probability if getting red marble will be

=total red marbles present/total marbles remaining

=4/29

Now ,

The required probability will be getting both at a time

i.e probability getting red AND red marble so here AND operator which means multiple both the probability.

Probability both will have red =1/6*4/29

=4/(29*6)=2/(29*3)

=0.022988

=0.023

=2.3 %

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