Answer:
see the explanation
Step-by-step explanation:
we have the quadratic equation

This is a vertical parabola open downward
The vertex is a maximum
Find the x-intercepts of the quadratic equation
The x-intercepts are the values of x when the value of y is equal to zero
so
For y=0

Solve the quadratic equation
The formula to solve a quadratic equation of the form
is equal to

in this problem we have
so

substitute in the formula





therefore
This parabola has two x-intercepts representing the times when the dolphin's height above water is zero feet
I don't know i think is C
Answer: a sperm and an egg
Step-by-step explanation:
True. ex. 2 x 8 =16 16/2 = 8
Answer:
X-----Independent Variable
Y-----Dependent Variable
Dependent Variable-----A variable whose value determines the value of the output
Independent Variable-----A variable whose value determines the value of the input
Input-----The value substituted into an expression or function
Output----The value that results from the substitution of a given input into an expression or function