Answer:
f(10)=sqrt(14)
Step-by-step explanation:
f(10) = sqrt(2x-6)
f(10)= sqrt(20-6)
f(10)=sqrt(14) - simplest form, no way to factor it.
3x=4+13x=5x=5/32x=2* 5/32x=10/3
Step-by-step explanation:
(A)It says AT A BASKETBALL CHAMPIONSHIP so obviously most people there would’ve said basketball.
(B) Maybe try doing the whole school and not just the students at the basketball championship.
hope this helped! if you need anything else let me know. <3
Sorry it took me so long, the correct answer is B.
Answer:
P ( -1 < Z < 1 ) = 68%
Step-by-step explanation:
Given:-
- The given parameters for standardized test scores that follows normal distribution have mean (u) and standard deviation (s.d) :
u = 67.2
s.d = 4.6
- The random variable (X) that denotes standardized test scores following normal distribution:
X~ N ( 67.2 , 4.6^2 )
Find:-
What percent of the data fell between 62.6 and 71.8?
Solution:-
- We will first compute the Z-value for the given points 62.6 and 71.8:
P ( 62.6 < X < 71.8 )
P ( (62.6 - 67.2) / 4.6 < Z < (71.8 - 67.2) / 4.6 )
P ( -1 < Z < 1 )
- Using the The Empirical Rule or 68-95-99.7%. We need to find the percent of data that lies within 1 standard about mean value:
P ( -1 < Z < 1 ) = 68%
P ( -2 < Z < 2 ) = 95%
P ( -3 < Z < 3 ) = 99.7%
