There are 3 buses in the park. The first bus takes 2 hours to make a round trip, the next bus takes 4 hours and the third bus takes 5 hours. If they all leave the park at the same time,
how many hours later will they all arrive back in the park, at the same time?​

answer: 15

step-by-step explanation:

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1