Each day, viktor practices piano for x minutes and practices violin for 30 minutes. to find how many minutes he will spend practicing instruments over 5 days, viktor calculates: x + 30 + x + 30 + x + 30 + x + 30 + x + 30 what is another way viktor can calculate how many minutes he will practice in total over the 5 days? drag and drop the equivalent expression in the box. 5x + 30 x + 150 5 (x +30) x + 30

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

What is the slope of the line shown below?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 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)