Answer:
see explanation
Step-by-step explanation:
Given
9
- 225
← factor out 9 from each term
= 9( - 25 ) ← difference of squares
Difference of squares factors in general as
a² - b² = (a - b)(a + b)
= (x² )² ⇒ a = x²
25 = (5
)² ⇒ b = 5
Hence
- 25
= ( -5 )( + 5 )
Thus
9 - 225
= 9 ( - 5 )( + 5 )
Answer:
1: C, ten from each class
2: 27
3: the numbers are counted incorrectly.
4: 5.5 hours
5: 6 hours
Step-by-step explanation:
Yes. that is the correct answer
0, not possible for 100 to go in to 3
I believe the answer is (7,-1) after you plot the point and draw a line connecting then you can see the point on the line.
