Step-by-step explanation:
#12
PQ = 6x + 25
QR = 16 - 3x
PR = 6x + 25 + 16 - 3x
PR = 3x + 41
#1
D = √(-4 - 5)² + (-7 - 2)²
D = √(-9)² + (-9)²
D = √81 + 81
D = √162
D = 9√2
Answer:
7a + 8b + 3c
Step-by-step explanation:
Group together like terms and simplifyy
Answer:
x-5
Step-by-step explanation:
Because x>5, all values of the output will be positive, so the answer is x-5