Show work explain with formulas.

1. in the series: 8 + 19 + 30 + 41 +

what is the 44th term and what is sum of the first 44th terms?

3. for the series: 25 + 34 + 43 + 52 + + 439;

write the series in summation notation and find the sum if it exists.

4. for the series: 12 + 24 + 48

write the series in summation notation and find the sum if it exists.

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.

X-intercept=-5 y-intercept=2 the equation of the line is

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?