Step-by-step explanation:
Recall that for a quadratic equation y = ax² + bx + c in the X-Y plane, the x-location of the vertex (i.e maximum or minimum point) is given by
x @vertex = -b/2a
in this case your quadratic equation is
h = 4 + 20t - 5t² (rearranging in the form y = ax² + bx + c )
h = - 5t² + 20t + 4
hence a= -5, b = 20 and c = 4
applying the formula for vertex
t @ vertex = -b /2a = -(20) / (2)(-5) = -20/-10 = 2
therefore t = 2
C
hope that it’s correct.
Answer:
- 1
Step-by-step explanation:
Slope of the line

9 pens and 15 puzzles.....GCF is 3
9/3 = 3 : 15/3 = 5
he can make 3 bags, each containing 3 pens and 5 puzzles
6 soft candies and 18 pencils....GCF = 6
6/6 = 1 : 18/6 = 3
he can make 6 bags, each containing 1 soft candy and 3 pencils
8 chocolate coins and 12 hard candies....GCF = 4
8/4 = 2 : 12/4 = 3
he can make 4 bags, each containing 2 chocolate coins and 3 hard candies