When a line is perpendicular, the slope is the negative reciprocal. Therefore, since the slope is 4, the slope of a line perpendicular is -1/4
In this case, you already used 310 minutes out of 500 minutes monthly. So the remaining time for your cell phone should be: 500 minutes -310 minutes= 190 minutes.
You still have 1 week this month, that means the 190 mins time must be divided into 1 week or 7 days. Then the duration you of cell phone use for each day should be: 190 minute/7days= 27.14 minutes/day
Answer:
The surface area of the cone
Step-by-step explanation:
The given figure is in the shape of a cone:

slant height(l)
Surface area of the cone
=
As, 
Surface area of the cone =


The surface area of the cone
Answer:
x=-2
Step-by-step explanation:
3x=4x+2
4x-3x=-2
x=-2