Use power regression to model the following data. Use two digits of accuracy for the coefficient and for the power.
x 1 3 4 7 8 y 4.46 14.74 21.68 44.5 54.31?
A. 
B. ?
C. ?
D. ?
Answer: A
Mathematics
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Decide if the number is rational or irrational.
A. Irrational B. Rational
Mathematics
Insert <, >, or = to make the statement true.-0.9 
-1.0
A. < B. = C. >
Mathematics
If 
and 
, and the vectors make angles of 140° and 20° with the x-axis respectively, find the component form of the sum of u and v. Round answers to two decimal places.
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Consider the functions f and g as shown in the graph. Answer the question.What is the domain of g/f?
A. {
-3 ? x ? 4}
B. {
-1 ? x < 3 and x ? 2}
C. {
-1 < x ? 3}
D. {
-3 ? x ? 3}
Mathematics