$82.08 - 20% off drops it down to $76 and then the tax is 8%
Answer:
yep
Step-by-step explanation:
Answer:
a) h(t) = -16t² + 56t; b) the graph is attached; c) maximum height is 49 feet, it takes 1.75 seconds to reach the maximum, and it is in the air for 3.5 seconds.
Step-by-step explanation:
Equations for these situations are in the form
h(t) = -16t² + v₀t + h₀, where t is the tie in seconds, v₀ is the initial velocity and h₀ is the initial height. The initial height in this case is 0, since it is launched from the ground; and the initial velocity is 56. This gives us the function
h(t) = -16t² + 56t
The graph is attached.
Using the graph, we can trace the function to the maximum. The y-value of the maximum, or the maximum height, is 49 feet. The x-value of the maximum, the time it takes, is 1.75 seconds.
The roots of this equation are at x = 0 and x = 3.5. This means the rocket is in the air for 3.5-0 = 3.5 seconds.
We conclude that the exponential function is:
f(x) = -1*(2)ˣ
<h3>
How to find the exponential function?</h3>
Here we know that we have an exponential function of the form:
And we know two points on the function, that are:
Then we have a system of equations to solve, which is:
From the first equation we can solve:
Replacing that in the other equation we can get:
Now that we know the value of a, we can get the value of b:
In this way, we conclude that the exponential function is:
If you want to learn more about exponential functions:
brainly.com/question/11464095
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Answer:
9/20
Step-by-step explanation:
450/1000
this is not the answer, because it is not simplified
so here we have to find common factor and simplifying
________________________________________________
450/1000 is simplified to 9/20, and it can no longer be simplified.