9514 1404 393
Answer:
(c) 162 cm
Step-by-step explanation:
The centroid divides a median into parts with the ratio 1:2, so RL:LD = 1:2. Then RL:RD = 1:(1+2), and RD = 3RL.
RD = 3·54 cm
RD = 162 cm
Answer: 12-n=25
-n=25-12
-n=13
Step-by-step explanation:
If the part inside the square root is negative, there are imaginary roots. Otherwise they are real.
Answer:
14x + 14
Step-by-step explanation:
Perimeter = 2( L + W)
2(2x+7 + 5x) = 2(7x + 7)
distributive property
= 14x + 14
