There must be minus sign with 4.9 .

The given equation is the equation of parabola , which is maximum at its vertex, and the formula of vertex is

So the height is maximum at t=2.55 seconds and to find the maximum height , we need to plug 2.55 for t , that is

So the maximum height is 112 m .
Answer:
A.
Step-by-step explanation:
Rise over Run
Answer:
a. $629.10
b. $635.80
c. $6.70
Step-by-step explanation:
The first thing we need to do is turn these percentages into decimal values by dividing them by 100, this would make 10% into 0.10 and 15% into 0.15. Now we can make the following equations to calculate the total by multiplying the 100 pens by the individual pricer per pen, and then multiplying that product by the 1 minus the discount percentage.
A) (100 * 6.99) * (1 - 0.10) = x
699 * 0.90 = x
$629.10 = x
B) (100 * 7.48) * (1 - 0.15) = x
748 * 0.85 = x
$635.80 = x
C) 635.80 - 629.10 = $6.70
The difference is $6.70 more for the 100 pens in the second store.
Answer:
x > -1
Step-by-step explanation:
Open circle so the sign is not inclusive. The point is at -1 and goes to the right so it is more than.
<span>Yes, the board is long enough. The board is 357 cm long and Suzanna only needs 350 cm length of the board to meet the requirement of 3.5m. </span>
1) 21 books * 17cm = 357 cm is the length of the board.
2) 1 meter = 100 cm
3.5 m * 100cm/1m = 350 cm require length of the board.