How to find the percentage error of the estimated value

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

Which term describes the point where the perpendicular bisectors of the three sides of a triangle intersect?