The first one is a triangle because: The two smaller sides of a triangle must add up to be larger than the longest side.
14 + 12 = 26 > 19
(n+1)x 2=10
2n+2=10
2n=8
n=4
Answer:
9) y = -3x - 4
10) y = -1/3x + 14/3
11) y = x - 1
12) y = -7/5x - 18/5
13) y = 3/5x + 9/5
14) y = -2x - 3
Step-by-step explanation:
For this explanation, let's use the last problem as the example. You would use the formula y=mx+b. The first thing you would need to find would be the slope, or m. So, you would find the slope and conclude the answer is -2. After that, you would solve for b and get the answer. Hope this helped!
Answer:
Step-by-step explanation:
Answer:
x = 12
Step-by-step explanation:
Given
p(x) = 
x - 3
To find the zero let p(x) = 0, that is
x - 3 = 0 ( add 3 to both sides )
x = 3 ( multiply both sides by 4 )
x = 12 ← zero of p(x)
