Answer:

Step-by-step explanation:
Please see work attached.
hit the heart button :)
Answer:
No they are not
Step-by-step explanation:
in the second expression
it would turn out to be
4^xy+3^xy
Which is way different then just
4+3^xy
Answer:
0.3125
Step-by-step explanation:
Use definition of geometric probability:

In your case,
Total Length = 8 miles
Desired Length = 7 - 4.5 = 2.5 miles,
so the probability is

4b² + 8b + 3 = 0
4b² + 2b + 6b + 3 = 0
2b(2b + 1) + 3(2b + 1) = 0
(2b + 3)(2b + 1) = 0
b = -1/2 or b = -3/2
Answer:
The time it took until 2 inches of rain fell is 8 hours
Step-by-step explanation:
You know that the proportional relationship between the amount of time (in hours) it had been raining, x, and the amount of rain (in inches) it had fallen, y, is y = 0.25*x
To find the time that passed until 2 inches of rain fell, you must replace the amount of rain (in inches) that had fallen "and" by that value. In this way the following expression is obtained:
2= 0.25*x
Solving:

8 = x
So, remembering that the amount of time it had been raining, x, is expressed in hours, <u><em>the time it took until 2 inches of rain fell is 8 hours</em></u>.