39 it's an arithmetic sequence in which the common difference is +7
Answer:
121/12
Step-by-step explanation:
1. 11/12 - (-10) = 11/12+10 = 131/12
2. 131/12-5/6 = 131/12 - 10/12 = 121/12
The numbers are 4,8, and 14 because 4+8+14=26 an 4x2=8 and 8+6=14
The 9-sided polygon will have a central angle between the vertex and the center of one side of 360°/(2*9) = 20°. Then the apothem is
a = (6 in/2)*cot(20°) ≈ 8.242432 in
The perimeter is 9*6 in = 54 in, so the area is
A = (1/2)Pa = (1/2)*(54 in)*(8.242432 in) ≈ 222.5 in²
The formula of the midpoint of HE:
We have H(0; 0) and E(2a; 2a). Substitute:
