Answer:
a 12.56 cm2
Step-by-step explanation:
area = πr² or I'd
step 1: substitute (plug in) for r which in here is 2
π(2)²
step 2: follow order of operations
(2)²= 4 *π= 12.56
P- parenthesis
E-exponent
MD- multiply and divide from left to right
AS- add and subtract from left to right
Yes they will be equal at some point. Although Marc has more miles on his car at the current moment, Elena is adding miles at a higher rate.
Elena's car: 7000 + 21000t
Marc's car: 20000 + 11000t
To find at what time t they are equal, set these two expressions equal to each other and solve for t.
7000 + 21000t = 20000 + 11000t
13000 = 10000t
t = 1.3 years from now
Ascending order means from lowest to highest, so to write these in ascending order.....
4.8 would be the lowest. Then, √26. This equals about 5.1.
Next would be 5.5. And finally, 2 + √22. √22 = about 4.6. 2 + 4.6 = 6.6
4.8 √26 5.5 2 + √22
There is your answer!