Write the augmented matrix for the system.
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.According to a country's census, the population (to the nearest million) was 251 in Year 0 and 299 in Year 10. The projected population for Year 50 is 442. To construct a logistic model, both the growth and carrying capacity must be estimated. (a) Estimate r by assuming that t = 0 corresponds to Year 0 and that the population between Year 0 and Year 10 is exponential; that is, the population is given by 
Round the value of r to four decimal places, if necessary.(b) Write the solution to the logistic equation using the estimated value of r and use the projected value P(50) = 442 million to find an estimation for the value of the carrying capacity K. Round to
the nearest million. A. (a) r = -1.0175 (b) K = 292 million B. (a) r = -0.0175 (b) K = 192 million C. (a) r = 0.0175 (b) K = 969 million D. (a) r = 1.0175 (b) K = 1,069 million
Use the given data to construct a frequency and relative frequency distribution.A medical research team studied the ages of patients who had strokes caused by stress. The ages of 34 patients who suffered stress strokes were as follows.29 30 36 41 45 50 57 61 28 50 36 5860 38 36 47 40 32 58 46 61 40 55 3261 56 45 46 62 36 38 40 50 27Construct a frequency and relative frequency distribution for these ages. Use 8 classes beginning with a lower class limit of 25.
A. 
B.
C. 
D. 
Give the amplitude or period as requested.Period of y = 2 cos 
x
A. 6?
B. 
C. 
D. 2
Divide and simplify.
÷ 
A. 
B. 
C. 
D. 