Answer:
Step-by-step explanation:
Answer:
C, D, A
Step-by-step explanation:
Distributive property
Combining like terms
Communitive property
There are 1000 mL in one liter, so there are 5000 Ml in the 5 L container. thus, it holds more than the 500 mL container.
Answer:
The mean hourly snowfall is 2.5 centimeters
Step-by-step explanation:
The mean hourly snowfall is the number of centimeters that fell during the period divided by the number of hours.
From 5 P.M. to 9 P.M., there are 4 hours
At 5 P.M., the total snowfall is 2 centimeters.
At 9 P.M., the total snowfall is 12 centimeters.
So in those four hours, the depth of snow increases 12-2 = 10 centimeters
10/4 = 2.5
The mean hourly snowfall is 2.5 centimeters
For this case, we have the following equation (according to the comments):

First, we factor the quadratic expression in the denominator:

Then, we multiply both sides of the equation by (a-2) (a + 2):

Later, canceling similar terms we have:

We do distributive property on the left side of the equation:

By grouping variables and constant terms we have:

Rewriting we have:

Finally, by clearing "a" we have:

Note: the value of a is a extraneous solution because it makes the denominator of the original equation equal to zero.
Answer:
the student correct, but the value of a= -2 is an extraneous solution