Answer:
18x^2 + 33x - 9
Step-by-step explanation:
to combine, i like using the foil method
3x x 6x = 18x^2
3x x -9 = 27x
1 x 6x = 6x
1 x -9 = -9
and then just combine those together
18x^2 + 27x + 6x -9
and then add the 2 in the middle
18x^2 + 33x - 9
Answer:
4^16
Step-by-step explanation:
We apply the power rule:
a^b / a^c = a^(b-c)
In our case a = 4, b = 11, c = 5
Therefore the right answer is 4^6.
Answer: 75%
Step-by-step explanation:
Over the course of seven years, Carrie went from charging the Millards $8 to charging them $14 per hour.
To calculate the percentage increase, use the following formula:
= (New price - Old Price) / Old price * 100%
= (14 - 8) / 8 * 100%
= 6/8 * 100%
= 75%
<em>Carrie's rate went up by 75%.</em>
Answer:
The slope is 0
Step-by-step explanation:
This is a horizontal line, and all horizontal lines have a slope of 0.
(to see why, just pick any two points, and work out the change in x over the change in y. i.e. rise/run. Since the y coordinates are all equal to 2, the numerator will be 2 -2, meaning the fraction is 0).