Factorising quadratic expressions
Multiply these brackets to remind yourself how to factorise.
<span><span>( x + 2 ) ( x + 5 ) = x2 + 7x + 10</span><span>( x + 2 ) ( x + 3 ) = x2 + 5x + 6</span><span>( x - 3 ) ( x - 5 ) = x 2 - 8x + 15</span><span>( x + 6 ) ( x - 5 ) = x2 + x - 30</span><span>( x - 6 ) ( x + 5 ) = x2 - x - 30</span></span>
X equals 12 because 12 minus 2 equals 10 over 8 which you can simplify into 1 and 2 over 8 which can be simplified to 1 and 1 over 4 hope this helped
Answer:
25,200 ft/ 1 hour
Step-by-step explanation:
B.
He has used the highest recommended percentages to calculate the amounts for the three categories.
Answer:
5,562 x 
Step-by-step explanation:
- Firts, we need to find the maximum recommended amount of bluefish per month. Since the FDA recommends <em>3 servings of 6.00 oz each</em>, the maximum amount would be:
the maximum amount of bluefish per month = 
- Since bluefish contains <em>0.309 ppm of mercury per 1x
oz of fis</em>h, then:
0.309 oz mercury --------> 1x oz of fish
How many (
) --------> 18.00 oz of fish
oz mercury
