Let's call the two numbers x and y. The first sentence, one is 6 less than twice another, translates to
We also know the sum of their squares:
So, we have the following system:
We can use the expression for x in terms of y from the first equation to turn the second equation into something involving y alone:
Expand the square:
Subtract 680 from both sides:
Using the quadratic equation
we find the two solutions
Since we know that both numbers are integer we can only accept the second solution. It yields the following x value:
The diameter of a tire is the distance across the tire through the center. Since tires are circular, you can find the circumference of the tire from the diameter. The circumference represents the distance the tire travels when it makes one revolution. If you know the number of inches in a mile and the circumference, you can find the number of times the wheel turns per mile.
First, measure the diameter of the tire in inches.
Secondly, multiply the diameter by pi, which is approximately 3.1416, to find the tire circumference. For example, if the tire has a 20 inch diameter, multiply 20 by 3.1416 to get 62 inches.
Hope this helped
You would add up all of the sides by combining like terms. Let me know if you want the answers for it.
Answer:
44+54= 98
98-13=85
Step-by-step explanation:
Answer:
b) all interior angles are right angles
