6x+y=6
8x-2y=-1

con solución de sistemas de ecuaciones por favor

Use the empirical rule. the mean speed of a sample of vehicles along a stretch of highway is 70 miles per hour, with a standard deviation of 4 miles per hour. estimate the percent of vehicles whose speeds are between 66 miles per hour and 74 miles per hour. (assume the data set has a bell-shaped distribution.)

What is the fate of the electrons that interact with a specimen in an electron microscope?

Aballet student who learns with the of his instructor is demonstrating learning.