Answer:
Step-by-step explanation:
As x = 0 is a zero, (x + 0) is a factor.
Dividing the equation by (x + 0) leaves x² - 9x + 20.
Factoring this polynomial
x² - 9x + 20 = (x - 4)(x - 5)
x - 4 = 0
x = 4
x - 5 = 0
x = 5
The zeros are at 0, 4, and 5.
Which can be verified by using a plotting calculator.
Area of the entire rectangle ![=x^2+10x+24](https://tex.z-dn.net/?f=%3Dx%5E2%2B10x%2B24)
Solution:
Area of the blue box = length × width
![=x\times x](https://tex.z-dn.net/?f=%3Dx%5Ctimes%20x)
Area of the blue box ![=x^2](https://tex.z-dn.net/?f=%3Dx%5E2)
Area of the pink box = length × width
![=4\times x](https://tex.z-dn.net/?f=%3D4%5Ctimes%20x)
Area of the pink box ![=4x](https://tex.z-dn.net/?f=%3D4x)
Area of the green box = length × width
![=6\times x](https://tex.z-dn.net/?f=%3D6%5Ctimes%20x)
Area of the green box ![=6x](https://tex.z-dn.net/?f=%3D6x)
Area of the orange box = length × width
![=6\times 4](https://tex.z-dn.net/?f=%3D6%5Ctimes%204)
Area of the orange box = 24
Total area of the rectangle ![=x^2+4x+6x+24](https://tex.z-dn.net/?f=%3Dx%5E2%2B4x%2B6x%2B24)
![=x^2+10x+24](https://tex.z-dn.net/?f=%3Dx%5E2%2B10x%2B24)
Area of the entire rectangle
Answer:
In this case, the 30% represents the proportion of the sample. It is a statistic that can be used to estimate a parameter of the population.
Step-by-step explanation:
In this case, the 30% represents the proportion of this specific sample (survey taken by the magazine).
It is a statistic that can be used to estimate a parameter of the population. In this case, it may be used to estimate the true proportion of "people in New York who believe that the Yankees will miss the playoffs this year".
If a new sample is taken, a new statistic will be calculated that may or may not be equal to 30%.
This is because when we do verification of an
identity, we must work separately on both sides, and to see in the end
if we can get an equality. Because if we square both sides, that already means
that we assume that the equality exist in the beginning, so no need to
verify the identity.
9514 1404 393
Answer:
D. 2/5
Step-by-step explanation:
The slope is the x-coefficient when the equation is solved for y.
2x -5y = 9 . . . . . . . given
-5y = -2x +9 . . . . . .subtract 2x
y = (-2/-5)x +9/(-5) . . . . divide by -5
y = 2/5x -9/5
The coefficient of x is 2/5. That is the slope of the line.
The slope is 2/5.