Answer:
The second one
Step-by-step explanation:
Square root of 5 is about 2.24
5/2 is 2.5
2.71 is 2.71
2 3/4 is 2.75
2.24, 2.5, 2.71, 2.75
Answer:
a) factors of polynomial are: (x+1)(x-2)(x-5)
b) the required polynomial in standard form is: ![\mathbf{x^3-6x^2+3x+10}](https://tex.z-dn.net/?f=%5Cmathbf%7Bx%5E3-6x%5E2%2B3x%2B10%7D)
Step-by-step explanation:
The polynomial has zeros at -1,2,5
Part A) Write the three factors of the polynomial
we have x=-1, x=2 and x=5 as zeros of polynomial
so factors will be:
(x+1)=0, (x-2)=0, (x-5)=0
So, factors of polynomial are: (x+1)(x-2)(x-5)
Part B) Write the polynomial in standard form
For finding polynomial, we will multiply all the factors i.e
(x+1)(x-2)(x-5)
![(x+1)(x-2)(x-5)\\=(x(x-2)+1(x-2))(x-5)\\=(x^2-2x+x-2)(x-5)\\=(x^2-x-2)(x-5)\\=x(x^2-x-2)-5(x^2-x-2)\\=x^3-x^2-2x-5x^2+5x+10\\=x^3-x^2-5x^2+5x-2x+10\\=x^3-6x^2+3x+10](https://tex.z-dn.net/?f=%28x%2B1%29%28x-2%29%28x-5%29%5C%5C%3D%28x%28x-2%29%2B1%28x-2%29%29%28x-5%29%5C%5C%3D%28x%5E2-2x%2Bx-2%29%28x-5%29%5C%5C%3D%28x%5E2-x-2%29%28x-5%29%5C%5C%3Dx%28x%5E2-x-2%29-5%28x%5E2-x-2%29%5C%5C%3Dx%5E3-x%5E2-2x-5x%5E2%2B5x%2B10%5C%5C%3Dx%5E3-x%5E2-5x%5E2%2B5x-2x%2B10%5C%5C%3Dx%5E3-6x%5E2%2B3x%2B10)
So, the required polynomial in standard form is: ![x^3-6x^2+3x+10](https://tex.z-dn.net/?f=x%5E3-6x%5E2%2B3x%2B10)
Answer:
what grade is this for
Step-by-step explanation:
300000000+9000000+90000+9000+900+90 is the answer