Answer:
The direction angle of vector v is equal to 
Step-by-step explanation:
Let

The vector v is given by




Remember that
The direction angle of the vector is equal to

substitute the values


Answer:
180/45 = 4/1, he did 4 situps in 1 second.
Answer:
-3
Step-by-step explanation:
-3x - 4 < 5
-3x < 9
x < -3
1. -4
2. 2
four plus negative four is zero and two minus two is zero
An rational number, is a real number, that can be written in the form of p/q, where q is not equal to 0 or 1. A common misconception is that irrational numbers do not terminate; this is false. For example, 1/3 equals 0.3 repeating, but 1/3 can be written as p/q. As you can infer, an irrational number is a number, that cannot be written as p/q. One example is pi, or e.