For your info the values of x expresses the domaine & the values of f(x), range
A- WRONG. As a matter of fact f(10) =0
B-WRONG: f(x) expresses the RANGE & NOT THE DOMAIN
C- WRIGHT
D- It depends on the function if it's continued or not. However in this example it appears that the range f(x) is all real numbers
Answer:
![4x^5-5x^3-6x](https://tex.z-dn.net/?f=4x%5E5-5x%5E3-6x)
Step-by-step explanation:
Given: ![(x^3-2x)(4x^2+3)](https://tex.z-dn.net/?f=%28x%5E3-2x%29%284x%5E2%2B3%29)
To find: the product
Solution:
Use the property: Multiplication is distributive over addition that is ![a(b+c)=ab+ac](https://tex.z-dn.net/?f=a%28b%2Bc%29%3Dab%2Bac)
![\left ( x^3-2x \right )\left ( 4x^2+3 \right )=(x^3-2x)4x^2+(x^3-2x)3\\=4x^5-8x^3+3x^3-6x](https://tex.z-dn.net/?f=%5Cleft%20%28%20x%5E3-2x%20%5Cright%20%29%5Cleft%20%28%204x%5E2%2B3%20%5Cright%20%29%3D%28x%5E3-2x%294x%5E2%2B%28x%5E3-2x%293%5C%5C%3D4x%5E5-8x%5E3%2B3x%5E3-6x)
Add the like terms: ![-8x^3,3x^3](https://tex.z-dn.net/?f=-8x%5E3%2C3x%5E3)
(Like terms are terms that have same variables of same powers)
So,
![\left ( x^3-2x \right )\left ( 4x^2+3 \right )=(x^3-2x)4x^2+(x^3-2x)3\\=4x^5-8x^3+3x^3-6x\\=4x^5-5x^3-6x](https://tex.z-dn.net/?f=%5Cleft%20%28%20x%5E3-2x%20%5Cright%20%29%5Cleft%20%28%204x%5E2%2B3%20%5Cright%20%29%3D%28x%5E3-2x%294x%5E2%2B%28x%5E3-2x%293%5C%5C%3D4x%5E5-8x%5E3%2B3x%5E3-6x%5C%5C%3D4x%5E5-5x%5E3-6x)
Answer:
all work is shown and pictured
Step-by-step explanation:
x: children tickets
y: adult tickets
You would need to know the cost of the box of 20, then you would divide the total cost by the number of pencils in the box. This would give you the cost of one pencil - which is the unit cost.
Example:
Lets say the box of 20 pencils cost $10.
Divide the total cost by the number of pencils:
10 / 20 = 0.50 - This means each pencil cost 50 cents, so the unit cost would be 50 cents per pencil.
It is a 100 degrees vertical angles are congruent