Step-by-step explanation:
![5x + 2y = 8](https://tex.z-dn.net/?f=5x%20%2B%202y%20%3D%208)
![2y = - 5x + 8](https://tex.z-dn.net/?f=2y%20%3D%20%20-%205x%20%2B%208)
![y = \frac{ - 5x}{2} + \frac{8}{2}](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B%20-%205x%7D%7B2%7D%20%20%2B%20%20%5Cfrac%7B8%7D%7B2%7D%20)
![y = \frac{ - 5x}{2} + 4](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B%20-%205x%7D%7B2%7D%20%20%2B%204)
Option → A
Answer:
x = -9
Step-by-step explanation:
Answer:
<u>254.34 in²</u>
Step-by-step explanation:
<u>Area of a circle</u>
- <u>r = radius of the circle</u>
<u>Solving</u>
- A = 3.14 x (9)²
- A = 3.14 x 81
- A = <u>254.34 in²</u>
F ( x ) = x³ + 3 x² - 9 x - 8We have to derive this function:f ` ( x ) = 3 x² + 6 x - 93 x² + 6 x - 9 = 0 /:3x² + 2 x - 3 = 0x² + 3 x - x - 3 = 0x ( x + 3 ) - 1 · ( x + 3 ) = 0( x + 3 ) · ( x - 1 ) = 0x1 = - 3, x2 = 1f max = f ( - 3 ) = - 27 + 27 +27 - 8 = 19f min = f ( 1 ) = 1 + 3 - 9 - 8 = - 13Answer:B ) The relative maximum is at ( - 3 , 19 ) and the relative minimum is at ( 1 , - 13 ).
Since they have both decorated 40%, they have decorated a total of 80% of the cupcakes.
They only need to decorate 20% of the cupcakes left.