The surface area of a cylinder is given by A = 2πrh + 2πr^2. You're given the radius, r = x+2, and the height, h = x + 5. Plug them in and you're done.
Move all the terms containing Ф to the left side ...
0 = 0
H0P3 It H3LPS :)
The first thing we must do for this case is to define variables.
We have then:
x = cost of a hardcover book
y = cost of a paperback book
We write the system of equations:
3x + 7y = 29.50
2x + 5y = 20.50
The solution to the system is:
x = 4 $
y = 2.5 $
Answer:
the cost of a hardcover book is $ 4
Answer:
See attached picture.
Step-by-step explanation:
Graph the line using a y-intercept -1 and slope 1.
Graph the equation with vertex (0,0) and radius 2.
Answer: 21
Step-by-step explanation: