Answer:
The numbers are 7 and 42
Step-by-step explanation:
Let x and y be the numbers
x = 6y
x-y = 35
Substitute the first equation into the second equation
6y -y = 35
Combine like terms
5y = 35
Divide by 5
5y/5 = 35/5
y = 7
Now find x
x = 6*y
x = 6*7
x = 42
Step-by-step explanation:
multiply the first bracket with the second
and get -a squared -4a+3a+12
then we group like and unlike terms
so -4a+3a = -a
our new equation will be -a (squared)-a+12=0
we equals to zero to remove negative signs and it will be
a squared +a-12
then we find the factors.
And our factors are 3a-4a
=a squared +3a-4a-12=0
We factorise and answer will be
(a+3) (a-4)=0
so a = -3 or 4
Answer:
And if we use the probability mass function we got:
And replacing we got:
Step-by-step explanation:
Let X the random variable of interest, on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
We want to find the following probability:
And for this case we can use the complement rule and we got:
And if we use the probability mass function we got:
And replacing we got:
Hibuscsjsbbzjd should d d d d g a g s g d s f d
Since a number is divisible by 2 and 3 and 5 it can be written as 2*3*5*x=num where x is a natural number
a number is only divisible by a number if they share the same prime divisors so the numbers that will always be divisible by that number are:2,3,5,2*3:6,2*5:10,3*5:15,2*3*5:30 C)30 which is the correct answer