please help me plase and thank you i will fail this grade and i will get inn so much problem

Question 1 (1 point)

 

A bird drops a stick from the top of Miami Tower.  The height of the stick after x seconds is given by f(x)=625−16x2

Question 1 options:

The time is takes the stick to hit the ground.

The times when the stick is at its highest point.

The height of the stick when it is dropped from the top of Miami Tower.

The time when the stick is dropped from the top of Miami Tower.

The distance of the stick from Miami Tower when it hits the ground.

Question 2 (1 point)

 

Question 2 options:

A bird drops a stick from the top of Miami Tower.  The height of the stick after x seconds is given by f(x)=625−16x2

What is the maximum value of f(x)

______________________

Enter a 0 in the blank below.

Question 3 (1 point)

 

The production cost, C, in thousands of dollars, for a toy company tomanufacture a ball is given by the model C(x)=75+21x−0.72where x is the number of balls produced in one day, in thousands. 

The company wants to keep its production cost at or below $125,000. 

The graph shown models the situation.

What is a reasonable constraint for the model?

Question 3 options:

–3.2 ≤ x ≤ 32.38

2.62 ≤ x ≤ 26.55

–3.2 ≤ x ≤ 2.62 and 26.55 ≤ x ≤ 32.38

0 ≤ x ≤ 2.62 and 26.55 ≤ x ≤ 32.38

Question 4 (1 point)

 

The weekly profit earned by a company after selling x items is given by the functionP(x)=−0.5x2+54x−400

Which equation can be used to determine the number of items the company should sell to earn a profit of $1,058?

Question 4 options:

11058(−0.5x+4)(x−100)=0

11058(0.5x+4)(x+100)=0

(−0.5x+27)(x−54)=0

(0.5x+27)(x+54)=0

Question 5 (1 point)

 

Question 5 options:

Use function g, shown in the graph below,

and the function f(x)=−x2+4x+6 to answer the given question.

What is the positive difference between the maximums of functions g andf?

________________

Enter a 0 in the blank below.

Question 6 (1 point)

 

Question 6 options:

The graph of the function f is shown below.

Determine f(4)

____________

f(4) = 

________________

Enter a 0 in the blank below.

Question 7 (1 point)

 

Question 7 options:

The height, in feet, of a javelin t seconds after it is thrown is modeled by the function h(t)=−4t2+24t+6

After how many seconds does the javelin reach its maximum height of 42 feet?

Round your answer to the nearest tenth.

seconds

________________

Enter a 0 in the blank below.

Question 8 (1 point)

 

Select the graph of the quadratic function

that has a maximum at x = 3.

Question 8 options:

Question 9 (1 point)

 

What are the zeros of the function f(x)=(2x−1)(x+4)

Question 9 options:

–4 and 2

–4 and 1/2

–1/2 and 4

1/2 and –4

–1/2 and –4

Question 10 (1 point)

 

Representations of two quadratic functions, f(x) in the table and g(x) on the graph, are shown.

Which of the following has the greatest value?

Question 10 options:

the x-value of the minimum of f(x)

the x-value of the minimum of g(x)

the y-value of the minimum of f(x)

the y-value of the minimum of g(x)