Alexia ran three laps around her neighborhood. Each lap is 1 and StartFraction 3 over 8 EndFraction miles. Which is the best estimate of the number of miles that Alexia ran? 2 miles
3 and one-half miles
4 and one-half miles
6 miles

4 and one-half miles

Step-by-step explanation:

The answer closest to the correct answer is 4 and one-half miles.

To get the answer, you multiply 3 times the length of one lap which is 1 and miles.  To multiply the fraction, you take 3 times the top number in the fraction.  So 3 x 1 = 3 .  The fraction can actually be reduced to 1 and miles.  So you're total correct answer is 4 and miles.

The second selection is 3 and which can also be written as 3 and to make it easier to determine which answer is correct.  The second answer is therefore shorter than the correct answer.

The third selection is 4 and which can be written as 4 and so it is only longer than the correct answer.  So this selection is the closest to the actual miles ran.

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c