? I’m confused is there supposed to be a picture to this? I don’t see a expression so..
Answer:
2.33
Step-by-step explanation:
imagine a circle. its center is A, and it goes through B, so its radius is AB.
then it is important to know that the sum of all the angles in a triangle is 180 degrees.
one angle (at C) is 90. the angle at B is 25. so, the angle at A is 180 - 90 - 25 = 65 degrees.
more back to our circle.
in this circle the line CB is the sine of the angle at A multiplied by the radius.
and AC is the cosine of the angle at A multiplied by the radius.
we can ignore the orientation + and - of these functions, as we are only interested in the absolute length (and we can mirror the triangle, and all the angles and side lengths still stay the same).
=> CB = sin(A)×AB
AC = cos(A)×AB
=> 5 = sin(65)×AB
=> AB = 5 / sin(65)
=> AC = cos(65)×5/sin(65) = 5 × (cos(65)/sin(65)) =
= 5 × cot(65) = 2.33
Answer:
RT=7
Step-by-step explanation:
RS+ST=RT
5x+x+1=5x+2
6x-5x=2-1
x=1
RT=5x+2
RT=7
The current time would be 3:15
I assume you're asking to solve for the n-th term in the sequence, 
.
From the given recursive rule,
and by substitution,
Similarly,
The pattern continues, so that we can write the n-th term in terms of the 1st one:
So the first few terms of the sequence are
{10, 12, 14, 16, 18, 20, …}
