Answer:
12
Step-by-step explanation:
idk just a guess
It’s the 3rd one because the perpendicular slope of -1/2 would be 2/1 or just 2.
Answer:
20
Step-by-step explanation:
Substitute all the known values into the expression.
2 (-3) (-4) + (-4)
Then solve using pemdas
24 + (-4)
= 20
Answer:
45 units
Step-by-step explanation:
Since both figures are similar, the ratio of their similar sides will be equal to a constant. Hence;
8/10 = 12/EH
8EH = 12 * 10
8EH = 120
EH = 120/8
EH = 15
Perimeter of EFGH = 15 + 10 + 5 + 15 = 45 units
Use the distance formula:
Substitute in the known values.
Subtract.
Find the powers.
Add.
Find two factors of 
.
Find the two factors of 
.
Move the pair outside the square root.
