Pew research reported that, in 2013, 78% of all teens had a cell phone. assume this estimate is correct. (a) we take many random samples of 100 teens. let p represent the proportion of teens in a sample who own a cell phone. what are the shape, center, and spread of this sampling distribution? be sure to verify that the conditions are met.

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.

On her first stroke, maya hit a golf ball 146 yards, 2 feet, 11 inches. on her second stroke, she hit it 163 yards, 1 foot, 2 inches. how far did the ball go all together? convert the answer to larger units whenever possible.