A scientist is calculating the pH levels of vinegar and dish detergent. He uses the formula pH = –log[H+]. [H+ v] for vinegar is 6.3 × 10–3. [H+d] for dish detergent is
10–12. What is the difference of the pH levels for vinegar and dish detergent?

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?

Layla answer 21 of the 25 questions on his history test correctly. what decimal represents the fraction of problem he answer incorrectly.