Answer:
The correct answer is d, there are infinitely many solutions.
Step-by-step explanation:
If the variable terms are the same and the constants are the same, the equation has infinitely many solutions.
Ex: 5(3)+5(5)=40 3+5=8
5(4)+5(4)=40 4+4=8
Hope this helps! Brainliest please!
Answer:
0.72secs
Step-by-step explanation:
Given the height of the ball in air modeled by the equation:
h=−16t²+23t+4
Required
Total time it spent in the air
To get this we need to calculate its time at the maximum height
At the maximum height,
v = dh/dt = 0
-32t + 23 = 0
-32t = -23
t = 23/32
t = 0.72secs
<em>Hence the total time it spend in the air will be 0.72secs</em>