The perimeter is the sum of all the sides, so P = (5x -7) + (3x-4) + (2x -6). Then group like terms so you have p = 5x + 3x + 2x -7-4-6 and end up with P = 10x - 17
The answer should be £6.70
Answer:
x = 51
Step-by-step explanation:
-17 = x/-3
Multiply each side by -3
-3 * -17 = x / -3 * -3
51 = x
I got the same answer as you. Try to ask your teacher about it since it’s a math problem online or something.
AD is perpendicular to BC so slope Ad = -1/slope of BC
Slope of BC = (2 - (-1)) / (- 6- 3) = 3 / -9 = -1/3
So slope of AD = -1 / (-1/3) = -3/-1 = 3 Answer
