The last time the lower 48 states saw a total solar eclipse was 1979. how many years ago was that in scientific notation?

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me