There are many. For example, 32 x 0.5 is 16. You can multiply 4 x 4 to get 16, so it is rational.
Answer:
First one
Step-by-step explanation:
The first one
y = 6.6 (1/2 ) ^n where n = the number of half lives
42 days/ 14 days/halflife = 3 halflives
Answer:
80 yd^2
Step-by-step explanation:
Since the formula for squares is s^2, we can use this to set up an equation, which is
s^2=400
If we square root this, we get
s=20
The perimeter formula for a square is 4s, so if we plug in, we end up with 80 yd^2
The answer for this question is b because the angle of elevation of the rope as 35°
Volume = w * 2w * 3w = 6w^3 cubic units
