Answer:
a = - 1
Step-by-step explanation:
given a quadratic in standard form : y = ax² + bx + c : a ≠ 0
Then the x-coordinate of the vertex is
• 
= - 
The line of symmetry passes through the parabola, hence x-coordinate is 4
y = ax² + 8x - 3 is in standard form
with a = a, b = 8 and c = - 3, hence
- 
= 4 ( multiply both sides by 2a
- 8 = 8a ( divide both sides by 8 )
a = - 1
Answer:
6 3/8
Step-by-step explanation:
Convert the fractions so that the denominators match.
, then 
, then 
Add up the fractions.
The answer is 14 because a negative number multiplied by another negative number is positive. So (-7)*(-2) is 14.
Answer:
Either <u><em>26 or 21</em></u> depending on if you count the saved oranges or not.
Step-by-step explanation:
54 - 28 = 26
54 - 28 - 5 = 21
Answer:
1. Not equal
2. Equal but not connected
3. Equal
4. Equal
Step-by-step explanation: Sorry if not correct :(
