One day , the tempeture ranged from a high of 20 degrease to a low of -25F. By how many degrees did the tempeture change?
1 answer:
You might be interested in
Answer:
i hope this helps
Step-by-step explanation:
2 -16=0
+16 +16
2 =16
÷2 ÷2
= 8
=
x=
-5 +9=0
-9 -9
-5=-9
÷-5 ÷-5
=1.8
=
x=
6 -15=27
+15 +15
6 =42
÷6 ÷6
=7
=
x=
Answer:
D'G' = 52.5 units
Step-by-step explanation:
Since the dilatation is centred at the origin then multiply the original coordinates by the scale factor 3.5
D' = (1 × 3.5, 7 × 3.5 ) = (3.5, 24.5 )
G' = (- 8 × 3.5, - 5 × 3.5 ) = (- 28, - 17.5 )
Calculate D'G' using the distance formula
d =
with (x₁, y₁ ) = D' (3.5, 24.5) and (x₂, y₂ ) = G' (- 28, - 17.5)
D'G' =
=
=
=
= 52.5 units