Something to the power of baby
First method: by the rule of three:
126 miles---------------------3 hours
x---------------------------------7 hours
x=(126 miles * 7 hours) / 3 hours=294 miles.
Answer: 294 miles.
Second method:
Speed=distance/ time ⇒distance=speed x time
We calculate the speed of the car:
Speed=126 miles/3 hours= 42 miles/hour.
Data:
Speed=42 miles/hour
time=7 hours
Distance=speed x time
Distance=(42 miles/hour)(7 hours)=294 miles
answer: 294 miles.
Answer:
x(x-3) ( x+4)
Step-by-step explanation:
2 5
---------- + ------------
x^2 -3x x^2 + x - 12
Factor the denominator
2 5
---------- + ------------
x(x -3) (x-3) (x+4)
The common denominator is
x(x-3) ( x+4)
Your answer is √(x + 4).
A strange way to find the inverse of a function is to write it first as y = x² - 4, and then to switch the y and x around to get x = y² - 4. Then you just solve for y, so:
x = y² - 4
+ 4
x + 4 = y²
√
√(x + 4) = y
I hope this helps!