What is the explicit formula for the sequence?

−1, 0, 1, 2, 3, . . .

an = n + 2

an = n − 2

an = an−1 − 2, where a1 = 3

an = an−1 − 2, where a1 = −1

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

The axis of symmetry for the graph of the function f(x)=1/4^2+bx +10 is x=6. what is the value of b?

Identify the conclusion of the conditional statement. if you live in phoenix, then you live in arizona.