Find the 200th term of the sequence: 1, 5, 9, 13, ...

797

Step-by-step explanation:

Note there is a common difference d between consecutive terms, that is

d = 5 - 1 = 9 - 5 = 13 - 9 = 4

This indicates the sequence is arithmetic with n th term

= a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 1 and d = 4, thus

= 1 + (199 × 4) = 1 + 796 = 797

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

i dont know sorry

step-by-step explanation: