The order of operations helps keep answers for multi-step equations similar. If the proper order of operations are not followed, then answers may vary. To show an example:
4 / 2 - 1
The proper order of operations would be:
Divide first, before subtracting
4 / 2 - 1
2 - 1
1
But if subtracting was done before dividing:
4 / 2 - 1
4 / 1
4
So not following the proper order would yield different and erroneous answers.
Answer:run:83.43 miles
Walk:39.11 miles
Step-by-step explanation:
There are 52.143 weeks in a year;
So each week she runs 1.6 miles=1.6*52.143=83.43 miles
Walks 0.75 miles=0.75*52.143=39.11 miles
The answer is D.
First solve for y.
You end up with:
y=-1/2x+3/2
Because they want a parallel line, the slope stays the same.
Our equation will look like
y=-1/2x+b
Now plug in the given coordinates
4=-1/2(6) + b
4=-3+b
b=7
Therefore, the equation of the line is
y = -1/2x + 7
For this, we use the Pythagorean Theorem to calculate for the side length of the triangle. This can only be used given your triangle is a right triangle. It is expressed as:
c² = a² + b²
where c is the hypotenuse.
c² = 3² + 3²
c = 3√2
Therefore, the perimeter is,
P = 3 + 3 + 3√2 = 6 + 3√2 ----------> Second option