138 is divisible by 3 because if you add each integer: 1 + 3 + 8, you get 12. If 12 number is divisible by 3, than the whole number is. Since it is, 138 is divisible by 3.
Answer:
C. 20
Step-by-step explanation:
Answer:
Step-by-step explanation:
We are given the vertices of triangle ABC. We need to find the length of median AD.
Please see the attachment for figure.
D is mid point of BC because median bisect the opposite side of triangle.
Using the formula of mid point. we get coodrinate of D
D is mid point of B(1,5) and C(-3,-1)
AD is median of triangle ABC. Now we find length of median AD using distance formula of two coordinate.
A(5,1) and D(-1,2)
Thus,
Answer:
x=-3,y=3
Step-by-step explanation:
substitute y
-2x-3=x+6
solve for x
3x=-9
x=-3
Substitute x in one equation
y=-3+6
y=3
Answer:
see below
Step-by-step explanation:
The experimental probability of heads is
P( heads) = 28/50 = 14/25
The theoretical probability is
P (heads) =1/2
Getting a common denominator for the experimental
25/50
comparing the experimental and the theoretical
28/50 > 25/50
experimental > theoretical