Answer:
After 3 seconds
Step-by-step explanation:
Given
Required
Time the drop will hit the ground
When the drop hits the ground,
So, we have:
Rewrite as:
Expand
Factorize
Factor out 5t + 1
Split
or 
Solve for t
or 
Time cannot be negative.
So:
The solutions you get when you solve the formula are the corresponding y coordinates to your x value. So say a point on your graph is (2,3). The first number is x and the second is y. (x,y). The number you plug into your function is x,or in this case: 2. The solution to the equation when the x value is plugged in is y, or 3. Therefore, giving you a point on your graph.
Answer:
June has 7 green and 28 blue marbles
Step-by-step explanation:
b + g = 35
b = 4g
Use substitution method to solve them simultaneously
4g + g = 35
5g = 35
g = 7
b = 4g = 4(7) = 28
b = 28, g = 7
She has 7 green and 28 blue marbles
