I found the image that should have accompanied this problem.
The triangle inside the circle is an isosceles triangle. It has 2 equal sides and 2 equal angles.
Angle A = 70° , Angle C is also 70°. This leaves angle R having 40°.
The arc opposite angle R is twice the measure of its angle.
Angle R = 40°
Arc AC = 40° x 2 = 80°
The measure of arc AC is 80°.
<span>given tan theta 4/3 and sin (-4/5), find cos theta
cos theta-3/5</span>
Hello :
the polar form is : z = |z
|×e^(iθ)
z=-10+8i
|z | =√((-10)²+(8)²) =<span>√(164)
cos</span>θ = -10/√(164)
sinθ = 8/√(164)
find θ by arctan(8/-10)
Answer:
105% of 400 is 420, the percent is 42000%
Step-by-step explanation:
