Step-by-step explanation:
sin⁴ x − sin² x
Factor:
(sin² x) (sin² x − 1)
Pythagorean identity:
(1 − cos² x) (-cos² x)
Distribute:
-cos² x + cos⁴ x
cos⁴ x − cos² x
Answer: 0
Step-by-step explanation:
Point A = (3 , 4)
Point B = (7 , 4)
= ![\frac{0}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B0%7D%7B5%7D)
Answer: No, New York students are not truly more nerdy than the California students.
Step-by-step explanation:
Since we have given that
Number of students in a group = 50
Mean score of New York psychology = 530
Mean score of California psychology = 515
Standard deviation = 80
So, we will find t-distribution first.
![t=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\t=\dfrac{530-515}{\dfrac{80}{\sqrt{50}}}\\\\t=1.32](https://tex.z-dn.net/?f=t%3D%5Cdfrac%7Bx-%5Cmu%7D%7B%5Cdfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%7D%5C%5C%5C%5Ct%3D%5Cdfrac%7B530-515%7D%7B%5Cdfrac%7B80%7D%7B%5Csqrt%7B50%7D%7D%7D%5C%5C%5C%5Ct%3D1.32)
Let α = 5% = 0.05
So, ![t_{\alpha,2}=2.920](https://tex.z-dn.net/?f=t_%7B%5Calpha%2C2%7D%3D2.920)
Since t < t(critical value)
No, New York students are not truly more nerdy than the California students.
It should be the 2nd or 4th answer, i’m not COMPLETELY sure. I’m positive it’s the 4th answer
It has to obey all the polynomial rules, like 3x^4 or 6x, it has to have the base then the power.