472.5 it's a pryamind or triangular pyramid. so 9x15x7/2
<span>The first equation is a direct variation. This type of equation has a form that is "y = kx," in which k is the constant. Changing both sides by a common multiple will still lead to the equation being evaluated as true, since the values will both increase by that multiple.</span>
Answer and explanation:
Find answer and explanation attached
The correct answer would be B. Sexual reproduction does infact create more variation in plants.
The pool's dimension are l = 2.7 m and w = 1.2 m
Step-by-step explanation:
Step 1 :
Given
The pool's perimeter = 7.8 m
Four times the pool's length = nine times the pool's width.
=> 4l = 9w => l = (
) w
Where l is the pool's length and w is the pool's width
Step 2:
The rectangle's formula for perimeter is 2 (l+w)
Substituting l = (
) w ,
2[ (
) w + w] = 7.8 (given)
(
) w = 7.8 = > w = 1.2 m
Step 3 :
l = (
) w = (
) 1.2 = 2.7
l = 2.7 m
Step 4 :
Answer :
The pool's dimension are l = 2.7 m and w = 1.2 m