The answer is 11 5/20 but simplified it is 11 1/4
By definition, the apothem of a pentagon is given by the following mathematical formula:
ap = ((L) / (1.45))
Where
ap: apotema
L = side.
The length of a side of the pentagon is
L = (ap) * (1.45)
Substituting
L = (7.43) * (1.45) = 10.77 cm
The radius of the circumscribed circle can be found by the Pythagorean
theorem in the following way:
r = root ((L / 2) ^ 2 + (ap) ^ 2)
substituting
r = root ((10.77 / 2) ^ 2 + (7.43) ^ 2) = 9.17 cm
answer:
L = 10.77 cm
r = 9.17 cm
<span>√x^2+2x-10=√x+20
raising both members to the square
</span> x^2+2x-10=x+20
rewriting
x^2+x-30=0
factoring
(x+6)(x-5)=0
therefore the solutions are
<span> x = –6, x = 5
</span>the answer is
<span>B. x = –6, x = 5</span>
Answer:
look closely at the shape, its basically asking you to mentally rotate it. or redraw if you have to visualize it better to understand. then with the rotations, you select the reasonable answer.
Step-by-step explanation:
i just said it ^
