Answer:
28j + 21
step-by-step explanation:
(7) (2j+3+2j)
=(7*2j) + (7*3) + (7*2j)
=14j + 21 + 14j
=28j + 21
Answer:
It represents the price that ray is actually paying. Instead of paying for 100% of the price, he is now only paying for 90%
Step-by-step explanation:
Answer:
n = 7/2
Step-by-step explanation:
4n^2-22=27
4n^2 = 27 + 22
4n^2/4 = 49/4
sqrtn^2 = sqrt(49/4)
n = 7/2
Answer:
17) 750/9 and 18) 364
Step-by-step explanation:
17. Summation of 75*(0.1)^i from i=0 to infinity, that is equal to 75*(Summation of (0.1)^i). Summation of (0.1)^I is a geometric series with a sum of 1/(0.9)=10/9. Hence the series have a sum equal to 75*(10/9)=750/9
18) It's a series with sum=1+3+9+27+81+243=364