The angles are xº, 9X°, (x+4)

x°=16° (x+4)°=20° 9x°=144°

Step-by-step explanation:

Since the sum of all angles on a triangle is equal to 180, you add all the angles and equate them to 180. Then you solve for x.

During the interval 0 < x < 2, height of the water balloon is increasing.

Step-by-step explanation:

Graph of the linear function represents the height f(x) of a balloon over the time 'x' seconds.

There are three intervals of the time in which height of the balloon has been given.

1). In the interval of 0 < x ≤ 2, height of the water balloon is increasing (Since slope of the line is positive or the line is slanting upwards).

2). In the interval 2 < x ≤ 3, height of the water balloon is constant (Since slope of the line is zero).

3). In the interval 3 < x ≤ 4, height of the water balloon is decreasing faster. (Since the given line is slanting downwards).

4). In the interval 4 < x < 6, height of the water balloon is decreasing (Since the given line in this interval is slanting downwards).

Therefore, during 0 < x < 2, height of the water balloon is increasing.