Answer:
4
Step-by-step explanation:
y-7=21
+7 +7
y=21+7
y=28
The shadow of the tree is about 17.955 feet long.
Answer:
a) Similar triangles are triangles with the same shape but not necessarily the same size
b) 15/45 = 8/x
1/3 = 8/x (simplify the 15/45)
x = 8 * 3 (cross multiplication)
x = 24
c) y^2 = 15^2 + 8^2 (Pythagoras theorem)
y = *square root of* 15^2 + 8^2
y = 17
1/3 = 17/z
z = 17 * 3 (cross multiplication)
z = 51
Answer:
21
Step-by-step explanation:
y+9 = ?
y=12
12+9=21
Answer:
31 animals
Step-by-step explanation:
1 rabbit + 6 elephants + 6*2=12monkeys + 12 parrots = 31 animals