Answer:
4^n-1
Step-by-step explanation:
So given sequence is a geometric sequence where terms increase or decrease by a constant common ratio(r)
Formula to find terms in Geometric sequence is " ar^n-1 where a is first term , r is common ratio and n is number of items
In this case , first term (a) is 1 , common ratio(r) is succeeding term/preceding term = 4/1 = 4 and number of items be (n).
Applying "ar^n-1 " we get,
1*4^n-1 which is , 4^n-1
Thats the formula which represents the situation....
Answer:
18 machines
Step-by-step explanation:
9 machines give 24 mins... You need to reduce the time by half by adding using double the machines..
So 9×2=18
Answer:
There can be many possibilities
Possibilities:
one<u> </u><u>possibilities</u> that is perfect according to me is:-
15questions of 2 points
15×2=30 points
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.
10questions of 3 points
10×3=30 points
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.
Total =30+30=60 points
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Hope it helped you
lf not then I am sorry for this.
Bye
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Good morning
Good evening
Good night
Answer:
20 is the answer
Step-by-step explanation:
10× 2× 1 = 20
