Answer:
1)+5
2)-6
3)+15
4)-4
I hope they are all right :)
Step-by-step explanation:
Answer: 5.5 seconds
Since the penny is dropped and not thrown, the initial velocity is 0 and the initial height is given as 150m. Plugging these into the given equation result in 
. To find how long it will take for the penny to hit the ground we set the equation equal to zero and solve for t. Since this doesn't factor, you'll need to use the quadratic formula:
. Since time cannot be negative, the answer will be the positive 5.5 seconds.
Answer:
8x+3y
Step-by-step explanation:
1. Find like terms: 5x and 3x share the same constant "x" so you can combine them. There is nothing to combine with the 3y since there is no other term with the constant "y".
2. Rearrange to make it easier to see: 5x+3x+3y
3. Add the 5x and 3x: 8x+3y
Answer:
3820.18cm³ i know it is right
Step-by-step explanation:
brainlest for me please
