Since h represents the height of the ball at any given time, t, let h = 25, such that the ball will be 25m high at t.
Now, we have 25 = 20t - 5t²
5t² - 20t + 25 = 0
t² - 4t + 5 = 0

Since the discriminant is less than zero, there are no solutions.
Hence, the ball will never be 25m high.
Answer:
m/_2 = 127°
m/_4 = 127°
m/_1 = 53°
m/_3 = 53°
Step-by-step explanation:
angle 2 and 4 are the same in the diagram.
to get angle 1 and 3 i did:
127°×2°=254°
360°-254°=106°
106°÷2°=53°
Given:
Denver can plant 3 rows of a certain length with 2 seedlings leftover or 4 rows of the same length with 3 seedling spots left empty.
To find:
The equation for the given problem and its solution.
Solution:
Let x be the length of each row.
Denver can plant 3 rows of a certain length with 2 seedlings leftover.
Total number of seeds he has =
...(i)
Denver can plant 4 rows of the same length with 3 seedling spots left empty.
Total number of seeds he has =
...(ii)
Using (i) and (ii), we get

Isolate variable terms.


Therefore, the required equation is
and the values of x is 5. Each row is 5 meters long.