I think the current age of the child is 16 and the father is 40. That would mean 4 years ago the father was 36 and the child was 12. This makes the father 3 times as old as his son four years ago.
Answer:
D
Step-by-step explanation:
Given 2 similar figures with sides in the ratio a : b, then
ratio of areas = : a² : b²
Given that the ratio of the edges of the 2 similar prisms is
7 : 3, then
ratio of surface areas = 7² : 3² = 49 : 9 → D
This is a quadratic equation because it has degree 2.
As known as a parabola
Answer:
1.4*10^4
Step-by-step explanation:
move the decimal 4 places