Suppose side of the square farm = x ft
area of farm = x^2 = 280
x= sqrt ( 280) = 16.733 feet
Perimeter of the square farm = 4 times the side length
= 4* 16.733
= 66.93 ft
If the length is doubled the new length = 2* 16.733 = 33.46
The new perimeter = 4 times the length of side = 4* 33.46 =133.86 feet
Answer : 66.93 and 133.86
It will take 866.09 hours
Answer:
Step-by-step explanation:
Let x represent the number of times Giselle uses the athletic club and y represent money left in account.
We have been given that each time she uses the club, $15 is deducted from the account. The amount used after using the club after x times would be 
.
We are also told that Giselle pays $220 in advance on her account at the athletic club.
The money left in account after x uses of athletic club would be money in account initially minus amount used for using the club x times.
Therefore, our required equation would be .
Answer:
D. Both B and C
Step-by-step explanation:
The government will give the same amount of available social security number to each state. So the available social security number pool will be divided by the total number of states. There are a total of 50 states in the USA. If the number pool is 5 x 10^9, then each state going to have:
5 x 10^9 /50= 0.1 * 10^9 = 1*10^8
The answer will be D since 1 x 10^8 and 100,000,000 is the same number
Answer:
-$0.26
Step-by-step explanation:
Calculation to determine the expected value of playing the game once
Expected value= [18/(18+18+2) x $5)]- [20/(18+18+2) x $5]
Expected value= ($18/38 x $5) - (20/38 x $5)
Expected value= ($2.37-$2.63)
Expected value= -$0.26
Therefore the expected value of playing the game once is -$0.26
