Answer:
A Exactly one solution
Step-by-step explanation:
Putting y=0 at second equation, we have
The unique solution is 
Answer:
A = choosing a red marble
B = choosing a green marble
Probability of A happening = P(A) = 5/(3+5+4) = 5/12
Probability of B happening = P(B) = 4/(3+5+4) = 4/12
Probability of either happening = P(A) + P(B) = 5/12 + 4/12 = 7/12
The key word in their question is red OR green and that is why we add the two probabilities. If they ask the probability of them both happening (if they said red AND green), you would multiply P(A)*P(B).
Answer:
504
Step-by-step explanation:
So, lets calculator this.
For each yard, there are 36 inches.
There are 14 yards.
To find the amount of inches in this 14 yards, we need to multiply 14 by 36:
14x36
=
504
So there are 504 inches of wire in 14 yards.
Answer:
<u>504</u>
Hope this helps! :)
We know that
The formula for combinations is
C=n!/[(n-r)!*r!]
where
n is the total number of objects you choose from
r is the number that you choose to arrange
in this problem
n=15 students
r=4 students
C=15!/[(15-4)!*4!]-----> C=15!/[11!*4!]---> (15*14*13*12*11!)/(11!*4*3*2*1)
C=(15*14*13*12)/(24)----->C=1365
the answer is
1365
