Find positive numbers a and b so that the change of variables s=ax, t=by transforms the integral ∬Rdxdy into ∬T∣∣∣∂(x, y)∂(s, t)∣∣∣dsdt for the region R, the elliptical region x2/4+y2/16≤1 and the region T, the circle s2+t2=1.

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

What is the measure of angle x? answer