Answer:
$40 ; $43.20
Step-by-step explanation:
a) 50 * (1 - .20) = 50 * .8 = 40
b) 50 * (1 - .20) * (1 + .08) = 43.20
c) The sales tax increases the price from a by 8%
Answer:
Exponents: 1
Constants: -5, 2
Step-by-step explanation:
7y + x - 5 + 2
Exponents: 1
Constants: -5, 2
For this case we find the slopes of each of the lines:
The g line passes through the following points:
So, the slope is:
Line h passes through the following points:
So, the slope is:
By definition, if two lines are parallel then their slopes are equal. If the lines are perpendicular then the product of their slopes is -1.
It is observed that lines g and h are not parallel. We verify if they are perpendicular:
Thus, the lines are perpendicular.
Answer:
The lines are perpendicular.
His dog weighs 2.975 pounds on the moon, his dog weighs 14.525 more pounds on earth