PLZ HELP LOTS OF POINTS!!

Z = 1.4

8.1% are taller

Step-by-step explanation:

The Z score is found by

Z =(x-u)/s

Z=standard score

x=observed value

u=mean of the sample

s=standard deviation of the sample

Z = (70-65)/ 3.5 =5/3.5 =1.428571429

To the nearest tenth  

1.4

We use the positive z table.

Using a z score of 1.4

.9192 is the decimal form for 1.4

Changing to percent

91.92%

91.92%  are shorter

That means 100-91.92 =8.08 % are taller

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.

i'm sorry mate, but i am not seeing any figures. i am unable to solve this for you.