On which step of solving the equation was a mistake made? 3(x – 4) = 12x + 13
3x - 12 = 12x + 13
Step 1
-9x - 12 = 13
Step 2
-9x = 1
Step 3
X = —
1
9
Step 4
Step 1
Step 2
Step 3
Step 4

4. find the geometric mean of 4 and 12. 24 8

Find the area and perimeter of each composite figure. use 3.14 for π. round your answer to the nearest tenth. a square and a right triangle share a common side. image long description a 3-meter by 0.5-meter rectangle has triangles attached like wings to the 3-meter sides. the other two sides of both triangles measure 2.5 meters. the height of each triangle is 2 meters. a 6-inch by 4-inch rectangle has 2 half-circles attached like wings to the 6-inch sides. the radius of each half-circle is 3 inches. find the surface area and volume of each figure. use 3.14 for π. round your answer to the nearest tenth. a right circular cylinder has a base radius of 6 yards and a height of 20 yards. a rectangular prism has a base that is 9 centimeters long and 7 centimeters wide. the height is 2 centimeters. a rectangular prism has a base that measures 11 millimeters by 11 millimeters. the height is 11 millimeters.

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8