Hope this helps, although, if you don't understand something, tell me!
Answer:
CDJ= 34
Step-by-step explanation:
We know that ADJ = 90 degrees
ADK = 180 degrees and JDK equals 90 degrees so ADJ must equal 90 degrees
ADJ = ADC+CDJ
ADJ =4x+ 3x-8
Since ADJ = 90 degrees
90 = 4x+3x-8
Combine like terms
90 = 7x-8
Add 8 to each side
90+8 = 7x-8+8
98 = 7x
Divide each side by 7
98/7 = 7x/7
14 =x
We want to know CDJ
CDJ = 3x-8
CDJ = 3(14) -8
CDJ = 42-8
CDJ= 34
Caroline should have thought of what she wanted to do first. That way, it reduces Caroline's percentage.
Answer:
Perimeter = 13.5 units
Step-by-step explanation:
Coordinates of A → (1, 2)
Coordinates of B → (2, 5)
Coordinates of C → (5, 7)
Coordinates of D → (4, 4)
Length of AB = 
=
units
Length of BC = 
=
units
Length of CD =
units
Length of AC =
units
Perimeter of the quadrilateral = 
= 2(3.16 + 3.61)
= 13.54
≈ 13.5 units
Perimeter of the quadrilateral ABCD is 13.5 units
Answer:
-a - 4
Step-by-step explanation:
3(a-2)+4(3-a)-10
3a - 6 + 12 - 4a - 10
-a - 4