Answer:
112.065
Step-by-step explanation:
so divide the triangle in two from x to wy
and you get to triangles
then using the first right angled triangle you can apply tan=opposite/adjacent
to get height as 7.56 then apply 1/2bh to get first area as 58.59
first add all angles and subtract from 180=24
then use tan to get the height as 6.9
then apply 1/2bh to get second area as 53.48
then add the two areas to get total
(after getting first one don't multiply by two)
Answer:
4!
Step-by-step explanation:
The answer is not 8, its 4. Just took the test!
Answer:
7
Step-by-step explanation:
number of diagonals in a regular polygon = number of sides - 2.
A nonagon is a polygon having 9 sides.
Total number of diagonals in a regular nonagon
= 9 - 2
= 7
Answer:
B) Elizabeth is wrong.
Step-by-step explanation:
She multiplied. 2 and 3 when she was supposed to divide 36 by 2 instead. when coming across multiplication and division do whichever is first from going left to right
So to find the x vertex u have to apply the formula x= -b/2a so it will be
x= -(-4)/2(1)
x= 4/2
x= 2
and to find the y vertex u just substitute the x value into the original equation so it will be
y= (2)^2-4(2)+1
y= 4-8+1
y= -3
so the coordinates of the vertex are (2,-3)
