A rectangle has four sides so we double each side and add them to each other: 2(2x+7)+2(3x+8y)
=4x+14+6x+16y
=10x+16y+14

What's the equation for this Answer??

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)