Answer:
y = -x² + 6x - 1
General Formulas and Concepts:
<u>Algebra I</u>
- Standard Form: ax² + bx + c = 0
- Expanding by FOIL (First Inside Outside Last)
- Combining like terms
Step-by-step explanation:
<u>Step 1: Define equation</u>
y = -(x - 3)² + 8
<u>Step 2: Rewrite</u>
- Expand [FOIL]: y = -(x² - 6x + 9) + 8
- Distribute -1: y = -x² + 6x - 9 + 8
- Combine like terms: y = -x² + 6x - 1
Answer:
A... 12
Step-by-step explanation:
Answer:
No there is no solution
Step-by-step explanation:
X cannot be found no matter how you try to solve the simultaneous equation so therefore y can also not be found.
Answer: C = 2 + 0.25 D
Step-by-step explanation:
Hi, to answer this question we have to write an equation:
The cost of the cab ride (C), must be equal to the fixed fee (2) plus the product of the charge per mile (x) and the number of miles traveled (D)
C= 2 + Dx
Since the cost for a 50 mile ride is $14.50:
14.50 =2 + 50x
Solving for x:
14.50-2 = 50x
12.50 =50x
12.50/50 = x
0.25 = x
The cab company charges $0.25 per mile.
Back with the original equation:
C = 2 + 0.25 D
Feel free to ask for more if needed or if you did not understand something.
Answer:
X= -6 (B)
Step-by-step explanation:
-3x=18
X=18/-3
X= -6
