Answer:
I hope its 15/10
Step-by-step explanation:
please let me know if its wrong
B. 50% of the moons surface
It will take them 20 hours, since the question is asking how long it will take them when working together you add each of their hours together,9+11=20
Answer:
347
Step-by-step explanation:
you supposed about times everythang i am gust 90 years old and i had streat a's my hole life
yeet yeet
First, create a rule for this sequence.
Let a(1) be the first term (which here happens to be 1).
The next term, a(2), is twice the previous term, that is, twice 1, or 2.
a(3) = 2a(2) = 2(2) = 4
This is called a "recursive function."
The 3rd term is 4. The next, which is a(3) is 2*4, or 8.
Note that there's an alternative approach. The first term, a(1), is 1; the next is a(2) = a(1)*2^(2-1) = 1*2^1=2
the next is a(3) = 1*2^(3-1) = 1*2^2 = 4
So the rule is a(n) = a(1)*2^(n-1).
So a(8) is a(1)*2^(8-1) = 1*2^7 = 2^3*2^4 = 8(16) = 128
