Answer:
= 9
Step-by-step explanation:
Given that,
Asn expression :
We need to evaluate the above expression.
We know that,
So,
or
So, the value of is 9. Hence, the correct option is (b).
At the moment a certain medicine is injected, its concentration in the bloodstream is 120 milligrams per liter. From that moment
1 answer:
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By solving a quadratic equation we will see that the egg will hit the ground after 1.58 seconds.
<h3>How long will take the egg to reach the ground?</h3>
Here we know that the initial height of the egg is 40ft, so the equation for the height will be:
The egg will hit the ground when h(t) = 0, so we need to solve the quadratic equation:
This means that the egg will hit the ground after 1.58 seconds.
If you want to learn more about quadratic equations:
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