Which is an example of an algebraic expression? A. m – 3 B. b > –2 C. 4 c > 1 D. 12 = a 6

1 answer:

6 0

In a algebraic expression, numbers and/or variables have to EQUAL other numbers and/or variables.

A. m - 3 INCORRECT because it doesn't equal anything

B and C are also INCORRECT. They have greater than saigns, which means they are inequalities.

D is the answer

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Taya2010 [7]

For this problem, we know d = 6 because (11 - 5) = (17 - 11) = (23 - 17) = 6
Now, we have to use the formula:
$a_{n} = a_{1} + (n-1)d$
For this problem, d = 6 and a(base1) is 5, so plug it in like this:
$a_{n} = 5 + (n - 1)(6)$
To simplify, all you have to do is distribute the six and reduce like so:
$a_{n} = 5 + ((6*n)-(6*1)) \\ a_{n}=5 + 6n - 6 \\ a_{n} = 6n-1$

So, here's your answer:
$a_{n} = 6n-1$

Hope this helps!

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Let the price of the 3rd card be c. Now we can write the equation:
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