If the formula for an arithmetic sequence is an = 2 +7(n-1), then what term in the sequence is the value 191?
{1,
O a.) 30th term
o b.) 29th term
oc.) 28th term
O d.) 27th term
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First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.