Answer:
99
Step-by-step explanation:
Answer:
At the moment it is thrown, the height of the ball is 12 meters
Step-by-step explanation:
If the function
models the height of the ball x seconds after it is thrown, then by this same function we can know the initial height of the ball at the initial moment.
If we represent the initial time instant as x = 0, then by doing h (0) we will get the initial height, just when the ball is thrown.
h (0) = 12 meters.
At the moment it is thrown, the height of the ball is 12 meters
The first step to solving this is to remember the radical rules. They state that the product of roots that have the same index are equal to the root of the product. Knowing this,, the expression changes to the following:

Next you'll add the two exponents together and then calculate the product.

Lastly,, calculate the square root to find your answer.
6

This means that the correct answer to your question will be 6

.
Let me know if you have any further questions
:)
Answer: it is not a function
Step-by-step explanation:
Given :
= 3x + 1
The first thing is to make y the subject of the formula, that means we will take the square root of both sides
y = 
since y =
, the the value of y could be positive or negative.
For example ,
= ± 2 , since -2 x -2 will also give + 4
For y =
to be a function , there must be a unique value for y for each value of x , but this is not the case as y could be positive or negative for a single value of x , so it is not a function.
8 hours and 41 mins per day!
(About 9 hours)
Hoped I helped!