Step-by-step explanation:
fifth row=19+4=23
sixth row= 23+4=27
Answer:
polar liquids and polar solids
Step-by-step explanation:
Answer: I would say rolling a number cube
Step-by-step explanation:
when flipping a coin you will have a 1/2 chance of landing on heads and then when spinning the spinner you would have a 3/4 chance since there is 3 numbers greater then 1 and then with the cube since it has 6 sides and your only getting 1 or two you would have a 2/6 chance.
Hello,
y=x²+2x+7
y=x+7
==>x²+2x+7=x+7
==>x²+x=0
==>x(x+1)=0
==>(x=0 and y=7) or (x=-1 and y=-1+7=6)
Sol={(0,7),(-1,6)}
