Answer: t x 90
Step-by-step explanation: if 90 are in by 3:00 pm every hour 1.5/2 boxes are put in
By Pythagoreans' theorem,
7.5² = l² × b²
56.25 = l² × b²
Since l = b
56.25 ÷ 2
= l²/b²
= 28.125 mm
∴ l = √28.125
= 5.3033 mm
Area of square
= √28.125 × √28.125
= 28.125 mm²
≈ 28.1 mm² (3s.f.)
9 = 3^2
Since 3 squared equals 9, that is how 9 as a power of the base 3 should be written.