Answer:
1
Step-by-step explanation:
1+1/1=2
Standard Equation for trig function: y = A cos (B (x - H))+ K
*Here, we are just dealing with A (amplitude) and B (period)
Period = 2π/ b
8 = 2π/ b
Solve for b: 2π/8 or π/4
Equation: y = 2 cos (π/4 (x))
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Answer:
B. -1
Step-by-step explanation:
A graph can show you that the expression approaches -1 as x approaches 2π.
The limit is -1.
__
The expression evaluated at x=2π is 0/0, an indeterminate form. This suggests that L'Hopital's rule is applicable. Applying that, we have ...
lim = (f'(2π) -f'(x))/(x-2π)' = -cos(x)/1
Evaluated at x=2π, this is ...
lim = -1
Answer:
there are no questions
Step-by-step explanation:
Answer: a.) About 54% of the variation in distance that the driver can see is explained by a linear relationship with the driver's age.
b.) The correlation coefficient, r, is -0.736.
Step-by-step explanation:
The coefficient of determination is denoted which gives the percent of the variance in the dependent variable that is predictable from the independent variable.
Given,
That means 54% of the variation in distance that the driver can see is explained by a linear relationship with the driver's age.
Also, , where r determines the correlation coefficient.
As driver;s age increases the distance he can see decreases, so there is a negative correlation between them.
So r= -736.
Hence, The correlation coefficient, r, is -0.736.
So, the correct options are a.) and b.)