Answer:
6, 12, 18
Step-by-step explanation:
3-- 3, 6, 9, 12, 15, 18, 21...
2-- 2, 4, 6, 8, 10, 12, 14, 16, 18, 20...
( A u B) would be the combination of both sets.
Since both sets have all distinct numbers, just add the 2 sets together.
4 + 7 = 11
There are 11 elements.
Answer:
hope this will help
Step-by-step explanation:
First simplify like terms (things with the same letter):
3g + 7g + 8 = -10 + g
10g + 8 = -10 + g
Next we should take g off both sides:
9g + 8 = -10
Next isolate 9g by taking 8 off both sides:
9g = -18
Next divide both sides by 9 to find the value of g:
g = -2
Answer:
x = 20 degrees.
Step-by-step explanation:
cos40∘=sin(x+30∘)
sin (x + 30) = 0.766
x + 30 = arcsin 0.766 = 50
x = 50 - 30 = 20.
