1. What is the central idea of the text?
a Migrant children prefer working on farms with their parents over attending school.
b. Migrant children work hard on farms and do not have the same chance to get an
education
c. Migrant children are better prepared to be adults because they already have job
experience
d Migrant children are used for farming because they pick fruits and vegetables
faster than adults

To find the extreme values of a function f(x. y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x, y)=xy

Klmn and pqrs are similar trapezoids. which side of pqrs corresponds to lm

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120