The answer is choice C
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You start off with the first term being a1 = 3
Then you add on 3 to get to 6 as the second term
The next thing to do is add on -3, which is the same as subtracting 3, to get back to 3 once more.
This pattern continues on forever. To ensure you add on either +3 or -3 to the previous term, we add on the general term 3*(-1)^n
Overall, the nth term is found by a(n) = a(n-1) + 3*(-1)^n, which is what choice C shows. I'm assuming your teacher meant to write 3(-1)^n instead of 3(-1)n
As written here, both choices B and C represent proportional relationships:
... B. y = 12x
... C. y = 3x
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One key to a proportional relationship is that when one variable is zero, so is the other. This will not be the case for selections A and D.
Answer:
The numbers are 38 and 57
Step-by-step explanation:
Let
x-----> the missing smaller number
y----> the missing larger number
we know that
-----> equation A
-----> equation B
substitute equation B in equation A and solve for y
Find the value of x
Answer:
Most likely A, maybe b not c
Step-by-step explanation:
9 days
because legit 60 - 42 = 18
18 divide 2 = 9 days
Or you could’ve just done 42 + 2 +2+2 until you get to 60 and you would do it 9 times. Meaning 9 days
