Perform the indicated matrix operations.Let A = 
and B = 
. Find 3A + 4B.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the value of r and determine if a correlation exists at the indicated level of significance.
?? = 0.01
A. r = 0.9418; Correlation does not exist. B. r = 0.9657; Correlation exists. C. r = 0.9646; Correlation exists. D. r = 0.9353; Correlation does not exist.
Mathematics
Find the perimeter of the composite figure. Use 3.14 as an approximation for ?.
A. 38.6 m B. 51.1 m C. 59.1 m D. 46.6 m
Mathematics
Find the area enclosed by the given curves.Find the area between the curves y = ln x and y = ln 3x from x = 1 to x = 5.
A. ln 243 B. ln 81 C. ln 81 - 8 D. ln 3
Mathematics
Solve the linear equation.15 + 3x - 11 = 10x - 16 - 5x
A. -10 B. -6 C. 6 D. 10
Mathematics