Answer:
Your answer is 15
Step-by-step explanation:
1) 6 + 4 = 10
2) -4 + -1 = -5
3) now add
4) 10 + -5 + 15
5) it's 15 because the bigger is positive.
Given:
The equation is:
To find:
The solution for the given equation.
Solution:
We have,
It can be written as:
Taking square root on both sides, we get
[Radius cannot be negative]
Therefore, the value of r is about 6.36 cm.
If 12 = 2y, then y = 6. To solve this kind of equation, whatever you do to one side of the equation, you must do to the other, and it will remain equivalent. If you divide both sides by 2, you get 6 = y. Also, 2 * 6 = 12, a much easier way to find the answer.
10. angle APB = (1/2) arc AB
108 = (1/2) arc AB
multiply both sides by 2 to clear the fraction
216 = arc AB
11. Area of regular Octagon s = 5 in
A = (P * apothem)/2 => => If you divide the octagon into 8 triangles, the apothem is the perpendicular height of the triangle.
A = (5 * 8 * 6)/2
A = 120 in^2
Area of regular Hexagon s = 5 in
A = (5 * 6 * 4.3)/2
A = 129 in^2