What is the radius of the circle x2+(y+3)2=81

Step-by-step explanation:

Use the vertex form to determine the values of

a

,

h

, and

k

and use these values to find the direction the parabola opens, vertex, focus, axis of symmetry, and directrix.

x = 12

y = 15

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950