Answer: Ana will hit the water after 3 seconds.
Step-by-step explanation:
The exercise gives you the following function which models Anna's height above the water (in meters) after diving "x" seconds:
You can rewrite the function with 
:
In order to calculate the number of seconds Ana will hit the water after diving, the procedure is:
- Substitute 
into the function:
- Solve for "x".
By the Zero Product Property, you know that if 
, then 
or 
.
Then you get:
- Choose the positive value (
)
Then, Ana will hit the water after 3 seconds.
Answer:
The squared form is not a correct form of the quadratic function.
Step-by-step explanation:
Given some forms of quadratic equation. we have to choose the form which is not correct of the quadratic equation.
As the general form and the standard form of quadratic equation is
where a,b and c are constant.
Also, the vertex form is
where (a,b) is vertex.
Only the three forms of quadratic equation exist. No other form like squared form exist.
Hence, the squared form is not a correct form of the quadratic function.
Answer:
Italy won the golf competition.
Step-by-step explanation:
Italy: -3 + 4 + 5 + -5 + 3 + -5 + 6 + -3 + -3
Total: -1
Russia:-4 + 5 + -6 + 4 + 4 + 6 + -3 + -3 + -5
Total: -2
Answer:
1376
Step-by-step explanation: You have to multiply 344 and 4 which is 1376.
Answer:
See below.
Step-by-step explanation:
The 3 angles of all triangles add up to 180 degrees.
An isosceles triangle has 2 of its angles equal.
So if one of the angles is 130 degrees then there cant be another one of 130 degrees as that would make 260 degrees.
So the other 2 angles are equal and their measure is (180 - 130) / 2
= 50 / 2
= 25 degrees.
The 2 equal angles are both 25 degrees.
