The relative hardness of a mineral can best be tested by
a) scratching the mineral across a glass plate
b. squeezing the mineral with calibrated pliers
c. determining the density of the mineral
d. breaking the mineral with a hammer

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?

What is the relationship between globular clusters and the milky way?

For this question, any non-integer answers should be entered as decimals, rounded to the hundredths place.consider this data set.the mean of the data set is , and the sample proportion of numbers less than the mean is %