Question

Three problems (a, b, c):

(a) Tricycle count:
(b) 0.09×1.21÷3.3:
(c) Length of the ladder:

Answer 1

The question involves mathematical operations including arithmetic, decimals, and applying physical principles to calculate forces on a ladder placed against a house.

Step-by-step explanation:

The student's question covers a range of mathematical problems:

1. Calculations involving the count of tricycles, which typically involves multiplication or basic arithmetic.
2. Performing a mathematical operation involving multiplication, division, and dealing with decimal numbers (0.09×1.21÷3.3).
3. Understanding principles of physics and geometry to determine the length of a ladder and the forces acting on it based on its placement and weight distribution.

For problem (a), more context is needed to provide a numerical answer. In problem (b), simply carry out the calculation following the order of operations: multiplication and then division. For problem (c), principles of statics are necessary to understand the lengths and forces involved with placing a ladder against a house.