Answer:
Step-by-step explanation:
The most general form of this, without seeing any of the options, would be:

Again, there might have been a value outside the parenthesis that may or may not have been negative, but either way, this is the most basic translation of the parabola.
Answer:
Ali´s secret number is 13
Step-by-step explanation:
Answer:

Step-by-step explanation:
Let x = unknown number


Multiply both sides by 9:

Expand brackets:

Add 32 to both sides:

Divide both sides by 8:

Answer:
£160.
Step-by-step explanation:
Mario receives 3 / (4+3+9) = 3/16 of the money.
So by proportion the total amount of money
= 96 * 16/3 = £512
So Rachel receives 4/16 = 1/4
= 512 / 4
= £128.
- and Sanjit receives 9/16
= 512 * 9/16
= £288
The difference is 288 - 128 = £160.
Answer is:
0.78287769023
Rounded answer:
0.783