Question

prova amanhã me ajudem pf​

Answer 1

1)

a) C={10,8,6,4,2,0}

b)C={13,17,19}

C)C={35}

2)

a) AUB={1,2,3,4,5,6,7}

b)AUC={1,2,3,4,5,7}

c)BUC={2,4,5,6,7}

d)A∩B={4,5}

e)B∩C={5,7}

f)A∩C={4,5}

3)

a) f(x)=-3x+2

a=-3

b=2

b) f(x)=8x+15

a=8

b=15

c) f(x)=3x+1

a=3

b=1

4)

a) f(x)=3x-3

0=3x-3

3x=3

x=1

b) f(x)=x+1

0=x+1

x=-1

c) f(x)=3x+15

0=3x+15

3x=-15

x=-5