a) The <em>n</em>-th term in the sequence is the product of the first <em>n</em> natural numbers:
1 • 2 = 2
1 • 2 • 3 = 6
1 • 2 • 3 • 4 = 25
1 • 2 • 3 • 4 • 5 = 120
and so on. Recursively, the <em>n</em>-th term is a function of the (<em>n</em> - 1)-th term as
<em>a(n)</em> = <em>n</em> <em>a(n</em> - 1<em>)</em>
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b)<em> </em>Using the rule above, the 6th and 7th terms are
<em>a</em> (6) = 6 <em>a</em> (5) = 6 • 120 = 720
and
<em>a</em> (7) = 7 <em>a</em> (6) = 7 • 720 = 5040
Step-by-step explanation:
plese like and mark brainlist
59 is a "prime number". It has no factors except ' 1 ' and itself.
So the only possibility is 1 x 59 .
Answer:
11x +9
Step-by-step explanation:
Add the two expressions together to get the total number of ice creams sold
8x+16 + 3x-7
Combine like terms
8x+3x + 16 -7
11x +9
If said number is x, that means that twice (2 times) a number and 2x-7=13. Adding 7 to both sides, we get 2x=20 and by dividing both sides by 2 we get x=10. For 2, we see that the sum of a number and 6 is first priority, so we have (x+6)*7=-43. Dividing both sides by 7, we get x+6=-43/7. After that, we subtract both sides by 6 to get -43/7-6=x