Circumference= 2πr
Circumference= perimeter
14.28km= 2(3.14)r
14.28= 6.2831853072r
divide both sides by 6.2831853072
2.27= r
ANSWER: The radius is 2.27km
Hope this helps! :)
The answer is B
This is because to work it out I just used the options by multiplying each one together, for example, for B, I did 2x+3 * x-1 and I got 2x2+x-3 which means it was correct
Answer: -3
Step-by-step explanation:
Step-by-step explanation:
0.4 can be 40%
A number decreased by 40% is 450.
What would I decrease by 40%? Probably a discounted item.
Hmm.. what item should I buy... that's $450.
Answer:
I want to buy a phone. It was on sale for 40% off and I purchased it for $450. How much money was the original phone?