8. 70.5* 10. 30* 12. 5.1*
I think it is 4 cause I love u
Answer:
C. 700 km/hour
Step-by-step explanation:
Step-by-step explanation:


The sine function is an odd function, so the sine of -30° is the opposite of the sine of 30°.
sin(30°) = 1/2
sin(-30°) = -1/2
The sine of 30° is greater than the sine of -30°.