Express the sum using sigma notation: 1 over 2 plus 2 over 5 plus 3 over 10 plus 4 over 17 plus 5 over 26

Write the equation below the represents the line passing through the point (-3, -1) negative one with a slope of 4

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Ialready asked this but i never got an answer. will give a high rating and perhaps brainliest. choose the linear inequality that describes the graph. the gray area represents the shaded region. y ≤ –4x – 2 y > –4x – 2 y ≥ –4x – 2 y < 4x – 2