ANSWER

EXPLANATION
The first polynomial is

The second polynomial is

If we add the two polynomials we obtain,

Next we group like terms to obtain,

We simplify the to obtain,

This is the sum of the two polynomials in descending powers of

Descending means from the highest power to the least.
Answer:
1) -1/4
2) -1/2
3) 1/3
Step-by-step explanation:
perpendicular lines' slopes are opposite reciprocals so you flip it and change the positive or negative sign
parallel lines have the same slope
X=6 answer is d. Put all x in one side then add them. At last divide it will be 6 Hope this helps
Given:
Population mean, μ = 10
Population standard deviation, σ = 1.5
Random variable, x = 11.
By definition, the z-score is
z = (x - μ)/σ
= (11 - 10)/1.5
= 0.667
Answer: 0.667