find the limit of the function by using direct substitution. lim(x^2+3x-1) as x approaches 3.
answers:
a) 17
b) 0
c) -17
d) does not exist

Option A

Step-by-step explanation:

We have to find the limit of the function (x² + 3x - 1) as x approaches 3.

lim[f(x)] = lim (x² + 3x -1)

x⇒3         x⇒3

            = (3)² + (3 × 3) -1

            = 9 + 9 - 1

            = 18 - 1

            = 17

Option A is the answer.

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110

cluster sampling.

step-by-step explanation: