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.
Answer: Yes. The answer is: [C]: "1 " .
______________________________________________
Explanation:
______________________________________________
The equation for a line, in "slope-intercept format" , is:
______________________________________________
→ y = mx + b ;
______________________________________________
in which "b" = the y- intercept; or the value of 'x' when "y = 0" ;
"m" = the slope; which is also the coefficient of "x".
____________________________________________________
In "slope-intercept format", the "y" remains isolated on the left-hand side of the equation, with no "coefficient" (other than the "implied coefficient" of "1").
__________________________________________________________
So, if the two particular lines are parallel, and we know that the slope is "1" for EACH line; (that is, "m = 1" for each line); then the PRODUCT of the two slopes is:
____________________________________________________________
→ m² = m * m = 1² = 1 * 1 = 1 .
____________________________________________________________
→ The answer is: Answer choice: [C]: "1" .
____________________________________________________________
Answer:
9 to the power 10 or 9^10
Step-by-step explanation:
9^5×2
= 9^10
Answer:
27 and 153 degrees
Step-by-step explanation:
Delta math
