Answer:
4. C. x = 4 or -4
Step-by-step explanation:
since both terms are perfect squares, factor using the difference of squares formula, a² - b² = ( a + b ) (
- b ) where
2.7 would be 2 7/10. Correct?
Answer:
4.87500
Step-by-step explanation:
hope this helps
Answer:
40
Step-by-step explanation: If 10 : 15, then 4 times both of those should be an hour. This would be 40 : 60. That is why 40 is the correct answer.
Answer:
10
Step-by-step explanation:
divide 1800 by 20 and 1800 by 18 and find the difference