42.86% error was in the scientist's estimation.
Step-by-step explanation:
Given data;
Approx amount = 4 ml
Exact amount needed = 7 ml
Percentage error = 
42.86% error was in the scientist's estimation.
Keywords: error, percentage
Learn more about percentages at:
#LearnwithBrainly
Answer:
Mixture A
Step-by-step explanation:
besause it uses less portion of white paint
A slope parallel to it will have the same slope. So it will be 1/4.
A perpendicular slope will have the opposite reciprocal of the given slope. So it will be -4.
All you do is 60 times .65 so the answer is 39
