Answer: 3
Step-by-step explanation:
as you see c is the hypotenuse of the triangle that has two of the side 6 and 3
c^2=a^+b^2
c^2= 3^2+6^2
c^2=9+36
c^2=45
c=
=3
Answer:
a part of the population that represents the entire population
Step-by-step explanation:
Answer:
r = 6
Step-by-step explanation:
Given that p varies directly as r, then the equation relating them is
p = kr ← k is the constant of variation
To find k use the condition p = 4, r = 2
k =
=
= 2
p = 2r ← equation of variation
When p = 12
12 = 2r ( divide both sides by 2 )
hence r = 6