Answer: When two polynomials are multiplied, the product is always a
polynomial.
Step-by-step explanation:
The only true property for polynomials is the third options because when you do multiply polynomials, you can only get a polynomial.
For instance;
Multiply (5x – 6y) by (7x – 4y)
= (5x – 6y)(7x – 4y)
= 35x² - 20xy - 42xy + 24y²
= 35x² - 62xy + 24y²
The result is a polynomial.
The rest of the options will not always yield polynomials.
Answer:
More than half the students scored 81 or better.
and the very last choice.
Answer:y² = 4 -
Explanation:The given expression is:
4x² + 25y² = 100
We need to isolate the y².
This can be done as follows:
4x² + 25y² - 4x² = 100 - 4x²
25y² = 100 - 4x²
![\frac{25y^2}{25} = \frac{100-4x^2}{25}](https://tex.z-dn.net/?f=%20%5Cfrac%7B25y%5E2%7D%7B25%7D%20%20%3D%20%20%5Cfrac%7B100-4x%5E2%7D%7B25%7D%20)
y² =
![\frac{x100-4x^2}{25}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx100-4x%5E2%7D%7B25%7D%20)
y² =
![\frac{100}{25} - \frac{4x^2}{25}](https://tex.z-dn.net/?f=%20%5Cfrac%7B100%7D%7B25%7D%20-%20%5Cfrac%7B4x%5E2%7D%7B25%7D%20)
y² = 4 -
![\frac{4x^2}{25}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4x%5E2%7D%7B25%7D%20)
Hope this helps :)
Answer:
19%
Step-by-step explanation:
We need to find what percent is $17.32 of $92.00.
To find what percent a part is of the whole, divide the part by the whole and multiply by 100%.
percent = part/whole × 100%
percent = 17.32/92 × 100%
percent = 18.826...%
Answer: 19%