Set h is defined as h={x|x is prime}. which of the following is a subset of h? a.{2,13,23} b.{x|x is an integer} c.{x|x is odd} d.{1,2,3,4}

a.{2,13,23}

Step-by-step explanation:

set h is defined as h={x|x is prime}

Some prime numbers are

2, 3, 5, 7, 11, 13, 17, 19, 23 ,29,31 and so on

a.{2,13,23} : 2, 13 and 23 are the prime numbers so they are the subset of h

b.{x|x is an integer} : all the integers are not prime numbers so it is not a subset of h

c.{x|x is odd}: all the odd numbers are not prime numbers so it is not a subset of h

d.{1,2,3,4}: 4 is not a prime number so it is not a subset of h

d

step-by-step explanation:

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !