27 :
complementary angle : 63
supplementary : 153
105 :
complementary : none cuz complementary angles add to 90
supplementary : 75
18 :
complementary - 72
supplementary - 162
complementary angles add up to 90 degrees and supplementary angles add up to 180
Answer:
Step-by-step explanation:
Hello,
as the mean age of 5 people is 40
it means that the sum of the 5 ages is 40*5=200
now a person enters the room, let's note x his age
the new mean is
So the age of the new person is 16
hope this helps
Plot and connect the points A (2,-2), B(-4,-4), C (-4,-1), D (-2,3), E (1,3), F (2,5), and find the length of BC.
elixir [45]
Answer: 3 units
Step-by-step explanation B is 3 units away from C
simple
Answer:
Step-by-step explanation:
0.4 × 3.2
Convert to fraction
0.4 = 4/10 = 2/5 & 3.2 = 32/10 = 16/5
0.4 × 3.2 = 2/5 × 16/5 = 32/25 = 1.28
Without conversion you press ur calculator and you get 1.28
5+2(3x-4)-x
5+6x-8-x
it is simplified to -3+5x
