Kite ABCD (a quadrilateral with two pairs of adjacent equal sides) has coordinates A\(0,7), B (1,0),\ C (12,-2), and D (7,8). What is the area of ABCD, given that the area of a kite is equal to half the product of its diagonals? PLEASE HELP DUE IN FIVE MINUTES

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?