<span>Using processing software (Excel) or even a decent scientific calculator. You input the values and generate the best fit cubic equation.
For number 1, the equation is
y = 8x10</span>⁻⁵ x³ - 0.0097 x² + 0.374 x + 1.083
where x is the number of years since 1900
y is the pounds cheese consumed
For number 2, the equation is
y = -3x10⁻⁵ x³ + 0.0028 x² + 0.2155 x + 1.7736
For number 3
P(-1) = 18
The answer is selections 1 and 4
If it's 5cm x 5 cm x 5cm
Volume is a3
so 125cm
The next larger tenth is 76.1 .
The next smaller tenth is 75.9 .
Neither of those is any closer to 76 than 76 is.
76 is already rounded to the nearest tenth.
48 mm long
Since a square has all equal sides, it will be 12mm for all sides
Perimeter = L (Length) + W (Width) + L + W
(In this case since it’s a 2D shape)
12 + 12 + 12 + 12 = 48
Hope this helped :)
