9514 1404 393
Answer:
a(n) = 1/2(-8)^(n-1)
Step-by-step explanation:
The general term of a geometric sequence is ...
a(n) = a(1)×r^(n-1)
where a(1) is the first term, and r is the common ratio.
Here, the first term is a(1) = 1/2. The common ratio is the ratio of any two sequential terms: r = 32/-4 = -8. Then the explicit formula is ...
a(n) = 1/2(-8)^(n-1)
Answer:
no se ingles así que no se pero te doy gracias por los puntos
144+64= 178
a^2+b^2= c^2
Whenever finding a missing length use the formula up above :
a^2+b^2= c^2
a^2-b^2= c^2
144-64= 80
Answers are 13.3 and 8.9
Answer: 25
Step-by-step explanation:
The Price to Earnings ratio, AKA, the P/E ratio, is calculated by dividing the Market price of the stock by the Earnings per share.
Earnings per share = Net earnings for the year / Number of shares
= 2,000,000 / 1,000,000
= $2 per share
P/E ratio = Market price of shares/ Earnings per share
= 50 / 2
= 25
Answer:
20 students offered both physics and biology.
Step-by-step explanation:
n(Total) = 50
n(Physics) = 40
n(Biology) = 30
Let n(Physics and Biology) = x
n(Physics only) = 40 -x
n(Biology only) = 30 - x
40 - x + 30 - x + x = 50
70 - x = 50
x = 20
