Answer:
Step-by-step explanation:
We are given that a line y=-3 .
We have to find the line which is perpendicular to given line and passing through the point (6,2).
Given line y=-3
It is a horizontal line .
The line which is perpendicular to horizontal line is a vertical line .
The equation of vertical line is x=a
We are given that perpendicular line passing through the point (6,2).
It means the vertical line is x=6.
Therefore, the equation of perpendicular line which is passing through the point (6,2) and perpendicular to given line is given by
Answer:
The time taken by the four workers to paint the room is 1.5 hours.
Step-by-step explanation:
3 workers can paint a room in 2 hours
So, 1 worker can paint the same room in 6 hours.
Now the number of workers is 4.
So, the time in which the 4 workers can paint the same room is
= 6/4 = 1.5 hours
The answer is B (i used the app Photomath)
Answer:
10 sqrt(3) + 2 sqrt(5)
Step-by-step explanation:
2√75+ √20
We know sqrt(a*b) = sqrt(a) sqrt(b)
2 sqrt(25*3) + sqrt(4*5)
2 sqrt(25)sqrt(3) + sqrt(4) sqrt(5)
2 * 5sqrt(3) + 2 sqrt(5)
10 sqrt(3) + 2 sqrt(5)