∠1 and ∠2 are complementary. if m∠1 = (x + 3)° and m∠2 = (4x - 8)°. find the value of x

Find the volume of the described solid. the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x. a) 441b) 147c) 864d) 882

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5