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2 years ago

The first digit of a 2-digit number is randomly selected from the set {1, 2}. The second digit is

Mathematics

1 answer:

oee [108]2 years ago

7 0

The probability that the 2-digit number is prime is 3/8

<h3>How to determine the probability?</h3>

The sets are given as:

First digit = {1, 2}.

Second digit = {1, 2, 3, 4}

When the 2-digit is formed, we have:

Numbers = {11, 12, 13, 14, 21, 22, 23, 24}

In the above set, there are 3 prime numbers out of the 8 numbers.

Hence, the probability that the 2-digit number is prime is 3/8

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What is 2 plus 2 = what does this

Stella [2.4K]

Answer: 2+2=4 lol

Step-by-step explanation:

1+1=2

2+2=4

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3 years ago

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Helen [10]

Answer:

R1 - given

R2 - subtraction property of equality

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Step-by-step explanation:

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3 years ago

In a newspaper, it was reported that yearly robberies in Springfield were up 40% to 196 in 2013 from 2012. How many robberies we

oee [108]

Answer:

There were 140 robberies in Springfield in 2012.

Step-by-step explanation:

Let's marked (named) robberies in 2012 with x, which is worth 100%

196 robberies in 2013 worth 100% + 40% = 140%

Now we will make proportion

x : 196 = 100 : 140

When we multiply external and internal members we get

140 x = 196 · 100 => 140 x = 19600 => x = 19600/140 = 140

x = 140 robberies in 2012

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3 years ago

What is the image of -1 - 5 after a dilation by a scale factor of 5 centered at the origin

amm1812

the Given data

*The given point is (-1, -5)

*The given scale factor is 5

The image of -1 - 5 after dilation by a scale factor of 5 centered at the origin is given as

$(-1,-5)=(-1\times5,-5\times5)=(-5,-25)$

Thus, the image after dilation by a scale factor of 5 centered at origin is (-5, -25)

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2 years ago

Talya is putting up a fence around their rectangular yard. The fence will be 16 yards long and 5 yards wide.

Vesna [10]

Answer:

80 yards2

Step-by-step explanation:

Area = l × w

= 16 × 5

= 80 yards2

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3 years ago