Answer:
(See explanation for further details)
Step-by-step explanation:
The standard equation of the parabola is:

The formula is now expanded into a the form of a second-order polynomial:


The general equation of the second-order polynomial is:




The equations to be solved are presented herein:


Now, the solution of the system is:






The equation of the parabola is:

Lastly, the graphic of the function is included as attachment.
Answer: The penguin will walk 75.15 feet in 45 sec
Answer:
B
Step-by-step explanation:
The equation for B equals a negative answer
Answer:
74 and 79
Step-by-step explanation:
one standard deviation= 5°
range of one standard deviation: (78-5) to (78+5)
73° to 83°
(2x-4)(x+5) expand with indicated multiplication
2x^2+10x-4x-20
2x^2+6x-20