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liberstina [14]
3 years ago
15

Find a. Round to the nearest tenth: 2 cm с 150 1050 a = = [? ]cm

Mathematics
1 answer:
VLD [36.1K]3 years ago
6 0

Answer:

a = 1.8 cm

Step-by-step explanation:

Here. we want to find the value of a

To do this, we are going to use the sine rule

it states that the ratio of a side and the sine of the angle that faces the side is a constant for all the sides of a triangle

From the diagram, we have that;

The angle facing a is;

180-15-105 = 60

So, we have that

a/sin 60 = 2/sin 105

a = 2sin 60/sin 105

a = 1.794 cm

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hammer [34]

The probability can be calculated as given because there are a total of 52 cards.

<h3>What is probability?</h3>

It is defined as the ratio of the number of favourable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

Total number of card = 52

Number of king of heart = 1

P(getting a king of hearts) = 1/52

P(getting a spade) = 13/52 = 1/4

P (getting a 5 or a club) = (16/52) = 4/13

P(getting a 5 or a 7) = 4/52 + 4/52 = 8/52 = 2/13

P(getting a card which is not a spade) = 1 - 1/4 = 3/4

P(getting 11 of clubs) = 1/52

Thus, the probability can be calculated as given because there are a total of 52 cards.

Learn more about the probability here:

brainly.com/question/11234923

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2 years ago
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igor_vitrenko [27]

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Step-by-step explanation:

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Elaine opens a checking account with a deposit of $20.00 and wants to put the same amount of money
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A bag has 4 red balls and 4 balls, what is the probability of getting a red ball randomly. ​
Mkey [24]

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1/2

Step-by-step explanation:

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For all x, (5x4 + 3x3 – x2 + 6) - (3x4 – x3 + 2x - 1) = ?
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