In a science experiment ,farah mixed a salt solution and vinegar in the ratio 3: 7. if she used 262.8 milliliters of salt solution how much vinegar did she use?

Is a positive integer raised to a negative power always positive

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)

Find the area of the unshaded square