Answer:
A
Step-by-step explanation:
work backwards so do the opposite of what they told you
example: - you do +
multiply, you do divide etc etc
False- the included angle must be a right angle for cos C to be 0 & two other points are normally used
the 7,000 is 9,000 less than the 7 in the ten thousand place
Check the picture below.
notice the reflected gray line on the red one over the y=x line, the slope of either line across the y=x line is simply the other's upside-down.
