Solve using substitution -9x+7y=-15 and -8x+y=18

Consider the integral: 4 0 16 − y2 − 16 − y2 4 1 x2 + y2 dz dx dy . (a) describe w. use the standard view of the x, y, and z axes. front half of a cone with a rounded top. full cone with a flat top. right half of a cone with a flat top. front half of a cone with a flat top. right half of a cone with a rounded top.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have