Answer: 
Step-by-step explanation:
To find the circumference of a circle, you can use
. You can set this equal to 21 (feet). The equation to solve at this point would be
.
For this we need to do (1530/3000)*100
1530/3000 is the same as 153/300 which is the same as 51/100
Therefore the total percentage is 0.51*100 = 51%
Answer:
Step-by-step explanation:
Answer: Choice A) Rectangle B'C'D'E' is larger because scale factor is greater than 1.
Going from (x,y) to (3x,3y) means we multiply each coordinate by 3. This is the scale factor. The scale factor being larger than 1 means the new image is an enlargement compared to the original preimage. Specifically the dimensions of the new rectangle are 3 times larger.
The selling price of a product and its manufacturing cost
Answer:
The first one
Step-by-step explanation:
the first one is biased because it is not random but rather people who are using the library. They will obviously be biased towards the library