Answer:
Step-by-step explanation:
https://www.toppr.com/ask/question/find-the-value-of-k-such-that-the-polynomial-x2k6x22k1/
Answer: 
Step by step:

(Used a table of common angles)
Solution
Step 1
Write an expression for the area of sector

Where
θ = 52°
π = 3.14
r = 8cm
Step 2
Find the area of the sector after substitution of values into the formula above.

To the nearest tenth the area of the shaded sector of circle C = 29.0cm²
Answer:
A.
-19 9 7
[15 -7 6 ]
-2 1 1
Step-by-step explanation: