Step-by-step explanation:
a) gradient= y2-y1/x2-x1
gradient of AB:
gradient=-4-1/2-3
=-5/-1
=5
gradient of BC:
=-5+4/7-2
=-1/5
b) as the priduct of both gradient is -1 ,both lines are perpendicular.
c) as we have seen lines are perpendicular so it is a right angled triangle.
Answer:
10 hours, 30 minutes.
Step-by-step explanation:
Distance ÷ Speed = Time
525 ÷ 50 = 10.5
The directions say round to the nearest tenth so use the 8.8 cm
5x-1=19
1st you add the one over to the 19 and you'll get 20
then you do 5x=20
divide the 5x over to the 20 and your final answer is 4.
Answer:
7+4
Step-by-step explanation:
hope it helps
