Answer:45
Step-by-step explanation:
y varies directly as x^2
y=k x x^2
When y=5 x=3
5=k x 3^2
5=k x 9
K=5/9
Relationship is y=5x^2/9
y=(5x9^2) ➗ 9
y=(5x81) ➗ 9
y=405 ➗ 9
y=45
The second one and the last one
1 liter = 1,000 milliliters
so your answer would be 11,000
Answer:
sum of angles in a triangle = 180°
180-(90+21)
= 69
pls am I correct