Answer:
The solutions are
and 
Step-by-step explanation:
we have

Divide by
both sides
------> 
we know that
The formula to solve a quadratic equation of the form
is equal to

in this problem we have

so

substitute






And we are given that
and want to find the value of x. Set f(x) to 16 and we get the equation:

Subtract both sides by 4

Divide both sides by 2

This is the answer. Let me know if you need any clarifications, thanks!
Answer:
The price decreased by 16 1/3%, or approximately 16.3%
Step-by-step explanation:
Use the formula for percent change. If the answer is negative, it is a percent decrease. if the answer is positive, it is a percent increase.
percent change = (new price - old price)/(old price) * 100%
In this case, use:
new price = 50
old price = 60
percent change = (new price - old price)/(old price) * 100%
percent change = (50 - 60)/60 * 100%
percent change = -10/60 * 100%
percent change = -1/6 * 100%
percent change = -100/6% = -50/3% = -16 1/3%
The price decreased by 16 1/3%, or approximately 16.3%
Answer: 14.4 h
The speed is :

The time it takes to travel 279 miles :

Answer:
like what type of help that i could help u