A competitive cliff-driver jumps from a height of 75 feet find the number of feet the diver is above the ocean in 2 seconds. Evaluate for t=2 by using the formula z75-16t2, where t is time in seconds
To find the number of feet the diver is above the ocean in 2 seconds, we need to substitute t = 2 into the formula z = 75 - 16t^2 given.
Substituting t = 2 into the formula, we get:
z = 75 - 16(2)^2
z = 75 - 16(4)
z = 75 - 64
z = 11
Therefore, the diver is 11 feet above the ocean in 2 seconds.
Gan wants tk put a boarder around her garden it costs 1.50% per yard for the materials use 1.50(2l+2w) l=length w=width, to find the ckdg for a garden that has kength of 4 yards wnd a width of 3 yards
To find the cost for the garden border, we need to substitute the length (l) and the width (w) into the formula 1.50(2l + 2w).
Given that the length (l) is 4 yards and the width (w) is 3 yards, we can substitute these values into the formula:
Cost = 1.50(2(4) + 2(3))
= 1.50(8 + 6)
= 1.50(14)
= 21
Therefore, the cost for a garden that has a length of 4 yards and a width of 3 yards for the border is $21.
To find the number of feet the diver is above the ocean in 2 seconds, we can substitute t=2 into the formula z=75-16t^2.
Let's plug in t=2 into the formula:
z = 75 - 16(2)^2
Simplifying the equation:
z = 75 - 16(4)
z = 75 - 64
z = 11
Therefore, the diver is 11 feet above the ocean in 2 seconds.
To find the number of feet the diver is above the ocean in 2 seconds, we can substitute the value of t=2 into the formula z=75-16t^2.
First, let's evaluate t^2. When we substitute t=2 into the formula, we get:
t^2 = 2^2 = 4.
Now we substitute this value of t^2=4 into the formula for z:
z = 75 - 16*4.
Now we simplify the expression:
z = 75 - 64.
z = 11.
Therefore, the diver is 11 feet above the ocean in 2 seconds.