Perimeter of a triangle = all 3 sides added together
x + (x - 4) + (x - 4) = 19
3x - 8 = 19
3x = 19 + 8
3x = 27
x = 27/3
x = 9 <==
Answer:
12
Step-by-step explanation:
-4 * -3
12
When you multiply two negatives, you get a positive number.
Hope this helps ^-^
The answer to 47/40 as a percentage is 94%
Answer:
perpendicular
Step-by-step explanation:
We only need the slope for this question. When we write in point-slope form, we can get the slope easily.
2-6 / -3-4 = -4 / -7 = 4/7 #The 1st line of slope
7-14 / -5-(-9) = -7 / 4 = -7/4 # The 2nd line of slope
So we can notice that the 1st slope is "upside down" and positive turns negative. So these lines are perpendicular.