The slopes of two perpendicular lines are negative reciprocals of each other. The slope of the line perpendicular to the one in this question is -3.
Answer:
S.A. = 15.7
Step-by-step explanation:
S. A. = 
1 x 1 x 3.14 = 3.14
3.14 x 1 x 4 = 12.56
12.56 + 3.14 = 15.7

Step-by-step explanation:
X+4 is prime. X2-9can be factored using the
formula

Answer: B
Step-by-step explanation:
We know N cannot be 0 as the value would not be negative.
We know N cannot be negative as that would make the expression positive.
B is the only answer that works.
Answer:
25 kilograms
Step-by-step explanation: