Answer:
Width = 3a
Height = 6a
Step-by-step explanation:
Given the following :
Scale = 1 in = 3 feets
Doorway frame on blueprint= a inches wide ; 2a inches High
Actual dimension of the doorway:
Since 1 in represent 3 feets
Actual doorway frame dimension will be :
Width = 3 * a = 3a
Height = 3 * 2a = 6a
Step-by-step explanation:
36b-40=6b+40b+10
36b-6b-40b=10+40
-10b=50
b=-50:10
b=-5
Answer:
D
Step-by-step explanation:
Two lines are perpendicular when the product of their slopes = - 1
line 1: y = 3x + 4
(3 , 0) ; (-3,2)

Slope of line 1 = 3
Slope of line 2 = -1/3
3* -1/3 = -1
It should be 5, i have uploaded it worked out