Colleen compared the ratios 3: 8 and 3. her work is shown below. write the ratios as fractions: 8 and 2 the common denominator is 8. write each fraction using the common denominator: 8 compare the numerators: 3 > 1 write the correct statement: 3 > 5 3 1 where did colleen make her first mistake? the common denominator should be 4 rather than 8. the numerators are compared incorrectly. the fraction =

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Pranza plotted point a in the coordinate plane 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)