If you are searching for the number that makes the whole expression a perfect square, you need to take b, divide it by 2, then square it, like this:
In this case, b is -7. You would then divide it by 2 to get 3.5, then square it.
You can plug this into a calculator to get an exact value, but this is what c is supposed to be to make a perfect square trinomial. 'b' is always the number next to 'X'.
In the hundred thousand place it is 3
9514 1404 393
Answer:
3 seconds
Step-by-step explanation:
We want to find t when h=0.
0 = 2t² -5t -3 . . . . . . . divide by -8
0 = (2t +1)(t -3) . . . . . . factor
The values of t that satisfy this equation are the values that make the factors zero: t = -1/2, t = 3. The positive value is the one of interest.
It takes 3 seconds for the object to hit the ground.
Answer:
A
Step-by-step explanation:
The total amount equals 40 when added together and the yellow is 5. 40 divided by 5 is 8 which makes 1/8