So the question if find y'' for 4y=cos2x
First, find y by dividing by 4. y = cos2x/4
Then, take the first derivative. y' = -sin2x/2
Then, take the second dervative. y'' = -cos2x
Answer:
2x - y = -7
Step-by-step explanation:
The equation y = 2x+7 needs to be written in standard form where A must be positive.
To convert to standard form, subtract 2x from both sides.
-2x + y = 7
Multiply each term by -1.
-1(-2x + y =7)
2x - y = -7
I think number 1 is 15 and number 2 is 80. Have a nice day!
The answer will be 60 because 8*8=64 then subtract 4
Answer:
Step-by-step explanation:
- 5 × 2 3/10 =
- 5 × (2 + 3/10) =
- 5 × 2 + 5 × 3/10 =
- 10 + 3/2 =
- 10 + 1 1/2 =
- 11 1/2