When we graph the function, it has a vertex of (3, 16).
The maximum of the graph is the highest "x" value on the graph which is 3.
Since the maximum is 3, it will take 3 seconds for the ball to reach its maximum height.
A graph will be shown below showing the function and vertex.
Best of Luck!
A) The rational equation that represents the given situation in the question is;<u><em> (21 + x) = 0.9(25 + x)</em></u>
B) Solving the equation gives the number of points needed to bring his average to 90% as; <u><em>15 points</em></u>
We are told that he earned a total of 21 out of 25 possible points.
A) Now, if he has a perfect score on the next several quizzes, it means the number of points which we will call x that he needs to bring his average up to 90% is calculated from the rational equation;
(21 + x)/(25 + x) = 90%
⇒ (21 + x)/(25 + x) = 0.9
⇒ (21 + x) = 0.9(25 + x)
B) To find the number of points, let us solve the equation in A above to get;
(21 + x) = 0.9(25 + x)
Using distributive property on the right hand side, we have;
21 + x = 0.9(25) + 0.9x
21 + x = 22.5 + 0.9x
Using subtraction property of equality;
x - 0.9x = 22.5 - 21
0.1x = 1.5
x = 1.5/0.1
x = 15 points
Read more at; brainly.com/question/12223525
Answer:
7.(1,0) and (-4,0)
8. (-3,0) and (-2,0)
Step-by-step explanation:
7.
When the function is equal to zero, we are looking for the zeros, or the x intercepts
Where it crosses the x axis are 1 and -4
(1,0) and (-4,0)
8. When the function is equal to zero, we are looking for the zeros, or the x intercepts
Where it crosses the x axis are -3 and -2
(-3,0) and (-2,0)
Step-by-step explanation:
x + 0.15x = 3.45
1.15 x = 3.45
x= 3.45/1.15
x=3
Well it's gonna be 28 because it just isn't it
So try try again