Answer:
C
Step-by-step explanation:
The angle 160° and the interior angle of the triangle form a straight angle
interior angle = 180° - 160° = 20°
Similarly with angle 131° and the interior angle at the top of the triangle
interior angle = 180° - 131° = 49°
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
n is an exterior angle, hence
n = 20° + 49° = 69° → C
Multiply both the top and the bottom by (4-3i) to eliminate i in the denominator:
10(4-3i)/(4+3i)(4-3i)=(40-30i)/[4²-(3i)²]=(40-30i)/25
reduce: (8-6i)/5
a=8, b=5, c=6, d=5
Answer:
14m + 5
Step-by-step explanation:
6c^2-5d+8
6 (5)^2-5(4)+8
30^2-20+8
900-20=8
880-8=872
ANSWER:872
