2. Which term in the following series is wrong 38, 49, 62, 72, 77, 91, 101, … Ans:

3. Find out the wrong number in the following series 7, 27, 93, 301, 915, 2775, 8361
ans:

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )