Answer:
x+3
Step-by-step explanation:
sqrt(x^2+6x+9)
factor
We know this is a perfect square trinomial
sqrt(( x+3)^2)
Taking the square root of a square
x+3
Answer:
r = 3.7 cm
Step-by-step explanation:
19.02 = 1/2π(2radius) + diameter
expanding:
19.02 = 1/2(3.14)(2r) + 2r
19.02 = 3.14r + 2r = 5.14r
r = 19.02/5.14 = 3.7 cm
Answer:
y=-3x-14
Step-by-step explanation:
Answer: -y
Explanation:
1. Distribute the negative to the second parentheses
2. Eliminate redundant parentheses
3. Combine like terms
1. (9x + 4y) - 9x - 5y
2. 9x + 4y - 9x - 5y
3. 4y - 5y
4. -y