Final answer:
We cannot determine the angle y without additional information such as the height at which the ladder touches the wall or the distance from the wall to the base of the ladder.
Step-by-step explanation:
To find the angle y (to two decimal places) that a 2.03 m ladder makes with the ground when it is leaning against a wall, we can use trigonometric functions. The angle y corresponds to an acute angle in a right-angled triangle where the ladder acts as the hypotenuse. However, since we only have the length of the ladder, we need additional information such as the height at which the ladder touches the wall or the distance from the base of the wall to the foot of the ladder to calculate the angle using either the sine, cosine, or tangent functions. Without this information, it is not possible to determine angle y.