C 4
from one vertex there are 4 triangles that can form
Answer:
21
Step-by-step explanation:
Answer:
What are the choices?
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
Depth of well = No. of turns × length of one turn
Given: Depth of well = 9.89m = 989cm [1m = 100cm]
Let number of turns be x
Length of one turn = 2πr or π×diameter
Now , 989=x×π×21
989=x×(22/7)×21
x=989×7/(22×21)
x=14.98 ≈15 turns
[Number of turn never be in decimals]
Hence number of 15 complete turns of the handle required to bring up the bucket
Answer:
slope=-1,
Step-by-step explanation:
first you have to find the slope of the original question
2x+2y=-8
2y= -8 -2x
y= -4-x
slope = -1
to find the perpendicular slope you flip it and multiply by -1
-1 -> -1 *-1 -> 1