So,
5y*3 is the open phrase the student uses to model "the sum of 5y and 3".
"The sum of" means addition. The student put 5y*3, while the sum of 5y and 3 is actually 5y + 3.
Given:-
;
, where a is any positive real number.
Consider the helix parabolic equation :

now, take the derivatives we get;

As, we know that two vectors are orthogonal if their dot product is zero.
Here,
are orthogonal i.e, 
Therefore, we have ,




take t common in above equation we get,

⇒
or 
To find the solution for t;
take 
The number
determined from the coefficients of the equation 
The determinant 

Since, for any positive value of a determinant is negative.
Therefore, there is no solution.
The only solution, we have t=0.
Hence, we have only one points on the parabola
i.e <1,0>
If you think about it, the question is asking us to find the greatest common factor, or GCF, of the two numbers, 24 and 18.
First, find all of the factors of 24.
The factors are: 1, 2, 3, 4, 6, 8, 12, 24
Next, find the factors of 18.
The factors are: 1, 2, 3, 6, 9, 18
List out all of the factors that both of the numbers have.
The factors are: 1, 2, 3, 6
Whichever is the greatest of these numbers is the GCF.
The GCF is 6, so the greatest number of groups he can make and still be able to win is 6.
Hope this helps!