Step-by-step explanation:
Length of arc of a circle is given as:
Thus, the measure of central angle is 140°.
Answer:
8 units^2
The area of a triangle is given by
A = 1/2 bh
A = 1/2 (7-3) * (4-0)
= 1/2 4*4
= 8
19y - 9
-3(-4y + 3) + 7y =
Distribute the -3.
= 12y - 9 + 7y
Combine like terms: 12y + 7y
= 19y - 9
6 in.