The correct answers would be the letter C
Perpendicular lines have slopes that are negative reciprocals of each other, so the equation of the line in point-slope form is:
Rewriting this in standard form,
Answer:
-8y-67
Step-by-step explanation:
-7(y+9)-(y+4) distribute
-7y-63-y-4 combine like terms
-8y-67
i believe this is the right answer :D
Answer:
126249
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>To increase a value by 10% let's take 2 steps.</u>
1. Find the 10% of 120.
10%= 0.1
120 * 0.1= 12.
2. Add 12 to 120.
120 + 12= 132.
3. Present your result.
$132.
<u>Secondary method.</u>
This is a more advanded way of finding the result in one step.
For example, if you want to increase a number by 10% you multiply it by 1.<u>1</u>. Hence, 120 with a 10% increase is:
120 * 1.1= <u>132</u>.
Another example. Let's increase 120 by 50%. For this, we multiply by 1.<u>5</u>.
120 * 1.5= <u>180</u>.
Finally, let's make an example of decreasing. Decreasing works a little different. For example, you would think that getting a 70% decrease of a value is just multiplying the value by 0.7, but that's not true. To get a decrease of 70% in 90, for example, you must multiply by 1-70%:
90 * (1- 70%)=
90 * (1- 0.7)=
90 * (0.3)=
<u>27.</u>
<u>-------------------------------------------------------------------------------------------------------</u>
How to verify?
Let's take 10% of the original number, and substract from 132: