Es de metodo de suma, resta, reduccion, eliminacion. 2x - 5y = 9
x mas 4y = -2

ayuda

ayuda porfavor es urgente

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

Ineed with number 6 , explain how to get 1978

What is the average diastolic blood pressure for adults