Answer:
C
Step-by-step explanation:
Sin x = cos (90-x)
90-x = 19
x = 71
The answer is 71 degrees.
The circumference of a DVD disc is 28.26 cm
Answer:
he answer is 140 minutes to plant 14 saplings.
Step-by-step explanation:
30 divided by 3=10
so it takes 10 minutes to plant one sapling.
10x14=140 so this is how you get your answer. im 99% sure
