Rational are number that dont repeat and you can make it into a fraction
irrational are numbers that go on forever and never stop
        
             
        
        
        
Given:
The given quadratic polynomial is :

To find:
The quadratic polynomial whose zeroes are negatives of the zeroes of the given polynomial.
Solution:
We have,

Equate the polynomial with 0 to find the zeroes.

Splitting the middle term, we get




The zeroes of the given polynomial are -3 and 4.
The zeroes of a quadratic polynomial are negatives of the zeroes of the given polynomial. So, the zeroes of the required polynomial are 3 and -4.
A quadratic polynomial is defined as:




Therefore, the required polynomial is  .
.
 
        
             
        
        
        
Answer:
Standard Deviation = 5.928
Step-by-step explanation:
a) Data:
Days  Hours spent  (Mean - Hour)²
1              5                61.356
2             7                34.024
3            11                  3.360
4           14                   1.362
5           18               26.698
6          22               84.034
6 days 77 hours,    210.834
mean 
77/6 = 12.833    and 210.83/6 =  35.139
Therefore, the square root of 35.139 = 5.928
b) The standard deviation of 5.928 shows how the hours students spend outside of class on class work varies from the mean of the total hours they spend outside of class on class work.
 
        
             
        
        
        
The perimeter of the square is:  ft
 ft
Step-by-step explanation:
The picture is attached with the answer.
the diagonal of a square divides it into two right angled-triangles.
We can use one of the triangle to find the length of side as the diagonal will be the hypotenuse of the triangle
Let a be the side of the square, then according to Pythagoras theorem

Dividing both sides by 2

Taking Square root on both sides

Now,

Hence,
The perimeter of the square is:  ft
 ft
Keywords: Perimeter, Pythagoras Theorem
Learn more about Square at:
#learnwithBrainly
 
        
             
        
        
        
Answer:
-1
 because you are adding up to 0 to get back to the positive.