Answer:
The rocket will reach its highest point about 2.04 seconds.
Step-by-step explanation:
The function:
Models the relationship between the height of the rocket and the time after launch t in seconds.
Since this is a quadratic function, the rocket will reach its highest point at its vertex. The vertex of a quadratic is given by:
In this case, a = -4.9, b = 20, and c = 0. Thus:
The rocket reaches its maximum height after 10/4.9 or about 2.04 seconds.
Further Notes:
Then the maximum height of the rocket will be f(10/4.9):
Answer:
£15.6
Step-by-step explanation:
Method 1:
You are trying to find 30% of £52.
Therefore:
If you solve this you will find that 30 × 52 = 1560, and 1560 ÷ 100 = £15.6.
So, the answer is £15.6.
Method 2:
You can solve 30% of £52 by using an algebra equation.
By using the rule that to convert a percentage to a decimal you divide by 100, you can change 30% to be 0.3.
Now, in order to write the equation, you will have to include 0.3 and 52.
The equation is:
0.3 * 52 = x
Once you multiply, you will find that the answer is £15.6.
I hope I helped!
You add the answers together
9.25 I think. Multiply 5 by .3 and subtract that from 20. Divide what you get from the subtraction by 2
Answer:
(3,-4)
Step-by-step explanation:
Hopefully the image can help which shows two different examples
