Answer:
20.3 units
Step-by-step explanation:
AB/CB = BD/AB
9/CB = 4/9
CB = 9×9/4
CB = 81/4 = 20¼ units
20.25 (20.3 units correct to 1 dp)
3 is the remainder because the closest is 7 times 21 so it’s remainder 3
2: c
Step-by-step explanation:
3: a
by Supplementing each answer Into the equation
Answer:
4√5
Step-by-step explanation:
√80 = √16 times √5
√16 = 4
4 times √5
4√5
