Answer:
x = 15 degrees
Step-by-step explanation:
This is a right angle, since we know that a right angle contains 90 degrees, we can form an equation.
Now, we solve for x.
Answer:
2.4 * 7/13 = 1.292 m (if Bill get a piece of ribbon)
2.4 * 7/12 = 1.4 m (if Bill do not get a piece of ribbon)
Answer:
4/9
Step-by-step explanation:
using cross canceling you see
(4(5)(6)(7)(8))/(5(6)(7)(8)(9))
everything cancels except for the 4 on top and the 9 on the bottom so
4/9
Answer:
-23
Step-by-step explanation:
6×-4 -1.... (6)(-4)-1
-24-1.....-24-1
-23
When I saw this, I said to myself "Self ! We don't know anything about
decagons.", and then I went searching online for stuff about decagons.
This just goes to show how stupid I can be when I don't take a little time
to THINK before I go running around screaming.
-- When you draw all the lines from the center to the vertices of the
decagon, you'll have 10 little triangles.
-- The area of the whole thing is 161 square inches, so the area of each
little triangle is 1/10 of that . . . . . <em>16.1 square inches</em>.
-- The area of each little triangle is (1/2) (base) (height), just like
every other triangle.
The base is the 4.6 inches of one side of the decagon.
Area = (1/2) (base) (height)
Multiply each side by 2: 2 x area = (base) x (height)
Divide each side by (base): (2 x area) / (base) = height
Height = (2 x 16.1) / (4.6) = <em>7 inches</em> .
Let that be a lesson to both of us.
THINK before you jump.
