Find the constant of variation, k. y varies directly with x; y = 6 when x = 
A. k =
B. k =
C. k = 24
D. k =
Answer: C
Mathematics
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The number of armadillos in a certain area t years since observation began is given by
?
?
How much did the armadillo population grow from year 2.00 to year 7.00? Round your answer to the nearest whole number.
?
A. 0 B. 854 C. 218 D. 1071
Mathematics
Perform the indicated operation and simplify. +
A.
B.
C.
D.
Mathematics
Find the length of the curve r(t)= 2ti+t²j+1ntk, 1?t?e³.
Mathematics
Find the unknown length in the right triangle. If necessary, round to the nearest tenth.
A. 8.7 m B. 19 m C. 38 m D. 76 m
Mathematics