Answer:
The answer is C.
Step-by-step explanation:
![50-x^2=0](https://tex.z-dn.net/?f=50-x%5E2%3D0)
![x^2=50](https://tex.z-dn.net/?f=x%5E2%3D50)
![x=\pm \sqrt{50} =\pm \sqrt{25*2}=\pm 5\sqrt{2}](https://tex.z-dn.net/?f=x%3D%5Cpm%20%5Csqrt%7B50%7D%20%3D%5Cpm%20%5Csqrt%7B25%2A2%7D%3D%5Cpm%205%5Csqrt%7B2%7D)
The answer is C (I am assuming that it isn't 5/2).
3 is less than 5, so rounded to the nearest ten is 360.
6 is greater than 5, so rounded to the nearest hundred, our answer is 400.
• We are told that the average height : Mean () = 65
,
• Standard deviation : SD () = 2.2
• 95 % 0f women height range = +- 3
= 65 +-3( 2.2)
= {65 + 6.6 ; 65 -6.6}
= {71.6 ; 58.4}
• This means that 95 % 0f women height will range between ( 58.4 ) and (71.6 )
Factor
(x+7)(x-2)
Proof
7-2=5
7*-2=-14
Zeros
x+7=0
x=-7
x-2=0
x=2
Final answer: C