Answer:
Step-by-step explanation:
B
Hope I heped
Step-by-step explanation:
cos A = 16/20 = 4/5
tan A = 12/16 = 3/4
sin A = 12/20 = 3/5
(6 + 5i)(4 + 7i) = 24 + 42i + 20i + 35i²
= 35i² + 62i + 24
The product of 6+5i and 4+7i is 35i² + 62i + 24.
Answer:
593 
Step-by-step explanation:
3.14 ×
= 907.46
3.14 ×
= 314
907.46 - 314 = 593.46