The answer is 2. You can see from the graph that 10 cookies were sold. If you take 1% of 10 and add it to 10, you get 11, which is exactly how many cupcakes were sold
Answer: x=4 or x=−7
Step-by-step explanation:
Because.....
Step 1: Subtract 28 from both sides.
x^2+3x−28= 28 − 28
x^2+3x−28 = 0
Step 2: Factor left side of equation.
(x−4)(x+7)=0
Step 3: Set factors equal to 0.
x−4=0 or x+7=0
x=4 or x=−7
* You could use any of the answers.
* Hopefully this helps:) Mark me the brainliest:)!!!
ANSWER
Zero(s)
![x = 0](https://tex.z-dn.net/?f=x%20%3D%200)
The function is discontinuous at
![x = - 3 \:and \: x = 3](https://tex.z-dn.net/?f=x%20%3D%20%20-%203%20%5C%3Aand%20%5C%3A%20x%20%3D%203)
EXPLANATION
The given rational function is
![y = \frac{3x}{ {x}^{2} - 9 }](https://tex.z-dn.net/?f=%20y%20%3D%20%5Cfrac%7B3x%7D%7B%20%7Bx%7D%5E%7B2%7D%20-%209%20%7D%20)
For this function to be equal to zero, then the numerator must be zero.
Equate the numerator to zero and solve for x.
![3x = 0](https://tex.z-dn.net/?f=3x%20%3D%200)
This implies that
![x = \frac{0}{3} = 0](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B0%7D%7B3%7D%20%20%3D%200)
The rational function is discontinuous when the denominator is equal to zero.
![{x}^{2} - 9 = 0](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20-%209%20%3D%200)
Solve this quadratic equation using the square root method or otherwise.
![{x}^{2} = \pm \sqrt{9}](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%3D%20%20%5Cpm%20%5Csqrt%7B9%7D%20)
![{x} = \pm 3](https://tex.z-dn.net/?f=%7Bx%7D%20%3D%20%20%5Cpm%203)
There is discontinuity at
![x = - 3 \:and \: x = 3](https://tex.z-dn.net/?f=x%20%3D%20%20-%203%20%5C%3Aand%20%5C%3A%20x%20%3D%203)
Answer:
1. 8 dimes and 7 quarters
2. 14 nickles and 11 pennies
Step-by-step explanation:
Good Luck
The answer is A,) (-2,-5) because I just did it in my CASIO calculator