Let's first rewrite it in vertex form.
Start by completing the square.
y = x² + 4x + 4 - 4 - 1
y = (x + 2)² - 5
(x + 2)² = y + 5
Now, 4a = 1; a =
![\frac{1}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B4%7D%20)
So, the vertex form is (x + 2)² = 4(
![\frac{1}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B4%7D%20)
)(y + 5)
So, we know that the vertex is at (-2, -5).
Since it's a concave up parabola, we just have to change the y-value to find the focus.
∴ F(-2, -5 +
![\frac{1}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B4%7D%20)
)
F(-2,
![\frac{-19}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-19%7D%7B4%7D%20)
)
To multiply out of these parentheses , you will have to use the distributive property. You need to multiply the number outside of the parentheses with each of the numbers inside the parentheses. So 5*2t and 5*3, This would equal 10t+15.
Your final answer is 10t+15
We know, 4/2 = 2
& 4/4 = 1
So, 4/2 > 4/4
In short, Your Final Answer would be Option C
Hope this helps!
Answer:
x = 30
Step-by-step explanation:
90 + 4x + 5x = ( sum of full angle is 360)
90 + 9x = 360
transpose
9x = 360 - 90 = 270
x = 270 ÷ 9
x = 30
Five Hundred is in word form to put it in standard notation, we just write he number like so 500.