Answer:
11. C. 315< 6561
12. D. 729>243
13. C. 1
14. B. 1/16
15. B. 1.61*10^8
16. A. 8.5*10^-9
17. A. 49t^8
18. C. -7x^2+8x
19. A. -12k^4-16k^3+20k^2
20. D. 2k^2-7k-4
I didn't guess. It would just take a long time to show all the work I did
Answer:
13.89 to 2 dec places.
Step-by-step explanation:
a7 / a5 = r^2 where r is the common ratio.
So 3/5 = r^2
r^2 = 0.6
r = +√0.6
r = 0.7746.
The first term is a5 / r^4
= 5 / (0.7746)^4
= 13.89.
The answer of the question would be:
<span>C) When two separate events, A and B, are independent, P(A|B)=P(B). This means that the probability of event B occurring first has no effect on the probability of event A occurring next.
Because of the evident independence.</span>
Step-by-step explanation:
Smallest two digit number which is multiple of 7 = 14 (7*2)
Smallest three digit number which is multiple of 7 = 105 (7*15)
Smallest four digit number which is multiple of 7 = 1001 (7*143)
Sum = 14+105+1001 = 1120.
