Which statement best describes the mean of the data listed below?
10, 7, 9, 5, 8, 6, 7, 3, 10, 5, 7

The middle value of the ordered data set is 7.

The value that occurs most often in the set is 7.

The difference between the smallest value and the largest value is 7.

The sum of all the data values divided by the number of data values is 7.

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?

In the triangle below, what is the length of the side opposite the 60° angle?