Write the first four terms of the recursive sequence.a1 = 2, an = n - an - 1 for n ? 2
A. 2, 4, -2, 6
B. 2, 0, 3, 1
C. 1, 4, 2, 5
D. 2, 4, -1, 5
Answer: B
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Solve the system by the substitution method. Be sure to check all proposed solutions.x + y = 6y = 2x
A. {(-2, 8)} B. {(2, 4)} C. {(3, 3)} D. {(1, 5)}
Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = x2 between x = 1 and x = 5 using a left sum with four rectangles of equal width.
A. 30 B. 69 C. 54 D. 41
Find the length of the curve.x = 
(y - 1) 3/2 from y = 9 to y = 16
A. 37
B. 
C. 
D. 
E. 3
Find the constant of proportionality for the stated conditions: E varies jointly with I and R, and when src="https://sciemce.com/media/3/ppg__cognero__2.6_Proportion_and_Variation__media__b27a78d7-e229-426c-8ac3-732544836bef.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_4584fda5c4be4e5994b674ba6" />.
Fill in the blank(s) with the appropriate word(s).
, 
and