Answer:
x=5
Step-by-step explanation:

add 11 to both sides

Divide 4 on both sides

Take the square root of both sides to eliminate the power of two from x

Simplify

Answer: C. a prediction based on the data is reliable, because the means of the samples are close together.
Step-by-step explanation:
Answer:
3 and 4 not congruent
Step-by-step explanation: