Answer:
D
Step-by-step explanation:
so they ran the trial ten times so now you have to aks how many times did they get heads
which would be 2/10 times
you want the accuracy of which they got so divide 2/10
we know the probability of getting heads is 50%
so when you calulate it, it will give you 0.2 use the percent button and get 0.1
Answer:
I think that the answer is either A or C. I'm not too sure on which one.
Step-by-step explanation
Answer:
use the formula sn= n(a1+an)/2
Step-by-step explanation:
2982=28(228+an)/2
5964=28(228+an)
5964/28=228+an
213=228+an
an=-15(last term)
to find difference use formula
an = a+(n-1)d
-15=228+(28-1)d
-243=27d
d=-243/27
d=-9
arithmetic sequence can be found be keep on subtracting 9 from 228
hence the arithmetic sequence is
228, 219, 210, 201, 192, 183, 174........-15
Answer:
Distributive Property
Step-by-step explanation:
If the given statement is
5(72 – 3y) = 360– 15y
When we apply the distributive property to the left hand side we get;
When we simplify we get
Therefore the distributive property justifies the given statement.
Answer:
250
Step-by-step explanation:
copper: zinc : total
2 1 2+1 =3
We have 750 brass
750/3 = 250
Multiply each by 250
copper: zinc : total
2*250 250 3*250
500 250 750
