Let's call the width of our rectangle
and the length
. We can say
, since the length is equal to 4 cm greater than the width.
Also remember that the perimeter of a rectangle is the sum of two times the width and two times the length, or
. To solve this problem, we can substitute in the information we know, as shown below:




Now, we can substitute in the width we found into the formula for length, which is
:


The width of our rectangle is
cm and the length of our rectangle is 
Answer:
3400
Step-by-step explanation:
60 * 70 = 4200
70 - 10 - 20 = 40
20 * 40 = 800
4200 - 800 = 3400
Look at the picture.
<h3>Answer: S(a, 0).</h3>
1 day = 24 hours
365 days per year = 365 x 24 = 8760 hours per year
8760 x 6 = 52,560 hours
Answer:
The solution in the attached figure
Step-by-step explanation:
we have

we know that
The solution of the inequality is the shaded area below the dashed line of the parabola
The equation of the dashed line is the vertical parabola 
therefore
The solution in the attached figure