Answer:
71°
Step-by-step explanation:
The cosine of an angle is equal to the sine of its complement:
cos(19°) = sin(90° -19°) = sin(71°)
Comparing to the given expression, we see that x = 71°.
Answer:
Step-by-step explanation:
can you translate that into English please?
Answer:
4/7
Step-by-step explanation:
Multiply the number by The reciprocal of 1 2/5
4/5*5/7=20/35
Answer:
Yes, the ratios do form a proportion.