Answer:
y= -2
Step-by-step explanation:
Please see attached picture for full solution.
(From the 4th to 5th line, I multiplied both sides by 8)
25^2-13^2=456
456 square root is 21.354...
21
Answer:
should be 0.28125
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
20-9=11