Answer:
∠ 2 = 140°
Step-by-step explanation:
the left base angle in the triangle and 110° are a linear pair and sum to 180°
base angle + 110° = 180° ( subtract 110° from both sides )
base angle = 70°
the 2 sides of the triangle are congruent so Δ is isosceles with base angles congruent.
the vertex of the Δ is then
(180 - 70 - 70)° = 180° - 140° = 40°
the vertex and ∠ 2 are a linear pair and sum to 180° , that is
∠ 2 + 40° = 180° ( subtract 40° from both sides )
∠ 2 = 140°
It is D, 1/4,
Because
x+4=5-3x
4x=1
We are given with 90<x<180 degrees and asks for the value of sin(x/2), cos(x/2) and tan(x/2). We just substitute the maximum and minimum angle to the equations. sin (180/2) is equal to 1 and sin (90/2) is equal to
to 1. cos (x/2) is equal to 0≤y≤<span>
. tan (x/2) is equal to 1 to infinity. </span>
Answer:
Subtract 2.5 after every term.
Step-by-step explanation:
13-2.5=10.5
10.5-2.5=8
So on and so forth. Therefore, the rule is subtracting 2.5 after every term.