The area ratio is 1:16 meaning that the old area is 1 while the new area is 16. So this is another way of saying "the area is multiplied by 16"
Take the square root of each part of the ratio of 1:16 and we get 1:4
So this is the scale factor. It tells us how the linear components of the circles relate to one another. If the circumference of the smaller circle is 1,then the larger circle has a circumference of 4.
Therefore, the circumference has been multiplied by 4
This is the anwser to your equation
The coordinate is an ordered pair

. We have a number, 5, for y, which we can substitute (plug-in) for y in the equation of the line and solve for x.

Answer:
B
Step-by-step explanation:
.4 as we know can also be handled as .40, as the zero helps us determine the difference in value. 50%, though it is a percentage, can be put into decimal form. That would be .5, or again, we could add a zero to help us out, which would make it .50. As of right now, .4 is less than 50%. 3 and 13 are whole numbers, so they do not really need deep observation, except that 3 is less than 13. That would make the order of number from least to greatest .4, 50%, 3, and 13.
Answer:
Extended facts are basic addition facts multiplied by a power of 10, such as 10, 100, 1,000.
Step-by-step explanation:
Example: 7 + 6 = 13 (basic) 70 + 60 = 130 (extended) 700 + 600 = 1300 (extended).