13 ESSA É A RESPOSTA CORRETA DA SUA PERGUNTA.
Answer:
21
Step-by-step explanation:
To find the mean, add up all the numbers
15+15+25+29 =84
Divide by the number of numbers
84/4 = 21
Answer:
-5
Step-by-step explanation:
The last number is always the y intercept. This number is -5 in this case.
Answer:
X=-2
Step-by-step explanation:
The axis of symmetry for any parabola is the x value of the vertex. Dividing the parabola along the vertex will always yield two symmetric halves.