3.6 - 3.2
z = ----------------
0.8
= 0.4/0.8 = 0.50 (answer)
D & C are the correct answers.This is because of the Distributive Property.
y+y+y +3z = 3y + 3z.
3(y+z) also gives you 3y + 3z.
C is correct because everything adds up to 3y +3z:
2y+2z+y+z = 3y +3z
9/x = 4/12
cross multiply
4*x = 9*12
x = 9*12/4
x = 9*3
x = 27
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This is a basic triangle which you should be familiar with, the ratio of their sides to angles is always...
30°:1, 60°:√3, 90°:2
So if the shorter leg is 8 the hypotenuse is 16...
h/8=2/1
h=16 meters