Answer:
see below
Step-by-step explanation:
DB = 9 units (by counting)
BA = 12 units (by counting)
DA can be found by using the pythagorean theorem
a^2 +b^2 = c^2
BD^2 + BA^2 = DA ^2
9^2 +12^2 = DA^2
81 +144 = DA^2
225 = DA ^2
Take the square root of each side
sqrt(225) = sqrt(DA^2)
15 = DA
LJ = 3 units (by counting)
JK = 4 units (by counting)
LK can be found by using the pythagorean theorem
a^2 +b^2 = c^2
LJ^2 + JK^2 = LK ^2
3^2 +4^2 = LK^2
9 +116 = LK^2
25 = LK ^2
Take the square root of each side
sqrt(25) = sqrt(LK^2)
5 = LK
Scale factor from BAD to JKL
15 to 5
Divide each side by 5
3 to 1
We multiply by 1/3 to go from the big to small
Answer:
Sarah is 22
Step-by-step explanation:
64 times 4 =44
44 divided by 2= 22
Answer:
3x+ -1
Step-by-step explanation:
-x-2x= -x+ -2x
-x+ -2x= -3x
1-2= -1
Hope this helps
Answer:
$2.25
Step-by-step explanation:
32/(14 2/9) =
32/(128/9) =
2.25 =
$2.25 sollars/km
