Answer:
The value at x =3 is undefined for the given expression
Step-by-step explanation:
Given expression is 
To find for what value of x is undefined in the given expression :



If we put x=3 in the above expression we get



Therefore 
The value at x =3 is undefined for the given expression
Answer: Your brother is 15 years old right now.
Step-by-step explanation:
Let be "m" your currently age and "b" your brother's currently age.
Knowing that right now he is three times (this indicates multiplication) as old as you, you can write the following equation:

In five years your age will be:

And your brother's age will be:

Then, if in five years, your brother will be twice as old as you, you can set up the second equation:

Then, the System of equations is:

Apply the Substitution method and substitute the first equation into the second one and solve for "m":

Substitute the value of "m" into the first equation and evaluate in order to find "b":

Answer:
Sqrt 29
Step-by-step explanation:
Answer:
Speed = 1050 meters per seconds
Distance =10500 meters
Step-by-step explanation:
Car traveling at a speed of 63 kilometers per hour
Let us convert this into meter per second
Speed =
kilometers per hour
Speed =
--------(A)
1 kilometer = 1000 meters
1 hours = 3600 seconds
Replacing them in (A)
Speed = 
Speed =
meters per seconds
Speed =
meters per seconds
Speed = 1050 meters per seconds
Distance = speed x time
Speed = 1050 mt per sec
time = 10 sec
Distance = 1050 x 10 = 10500 meters
The answer is 50%
hope this helped you good luck