Answer:
7/9
Step-by-step explanation:
sorry if i'm wrong
Answer:
1000=N(1 + .08/12)^36 where N is the initial deposit.
So 1000=N(1.00666667)^36
N=1000/(1.00666667)^36
ln N=ln 1000/(1.00666667)^36=ln 1000-36 ln (1.00666667)
ln N=6.6685517411100682158933244766027
N=e^6.6685517411100682158933244766027=$787.25463 as the initial deposit.
Answer:
Since the calculated value of Z does not fall in the critical region we accept our null hypothesis that mean = 60 seconds
Step-by-step explanation:
State the null hypothesis
H0: u = 60against the claim
Ha u≠ 60 (this is a two tailed test)
Sample size n= 36
Sample mean=X`= 55
Population mean = u= 60
The significance level α = 0.05
Standard deviation= Sd = 22 seconds
Z= X`- u / Sd /√n
Z= 55- 60 / 22/√6
z= - 5/22/6
Z= -1.3635
The value of z from the table is Z∝/2= ±1.96
The critical region is less than - 1.96 and greater than 1.96.
Since the calculated value of Z does not fall in the critical region we accept our null hypothesis that mean = 60 seconds
BC/AC = EF/DF
10/20 = 20/DF
DF = 40
AB/BC = DE/EF
AB/10 = 36/20
so AB = 18
answer
AB = 18, DF = 40 (A. fist one is your answer)
