Find the indicated term of the sequence.The twenty-third term of the arithmetic sequence 1, 7, 13, ...

A. 139
B. 133
C. -131
D. -137


Answer: B

Mathematics

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Suppose that you have already proved that “The diagonals of an isosceles trapezoid are congruent.” Use this theorem to prove that “A pair of base angles of an isosceles trapezoid are congruent.” Supply missing statements and missing reasons for the proof.Given: Trapezoid ABCD; and Prove: S1. R1.S2. Draw and R2.S3. R3.S4. R4. IdentityS5. R5.S6. R6. What will be an ideal response?

Mathematics

Use integration by parts to establish a reduction formula for the integral.

A.  = xn ex - n 
B.  = xn ex -  
C.  = xn ex - n 
D.  = xn ex + n 

Mathematics

Find the speed of a particle with the given position function.

What will be an ideal response?

Mathematics

Assume that y is directly proportional to x. Use the given x-value and y-value to find a linear model that relates y and x. ? ? ?

A. y = x
B. y = - 2400x
C. y = x
D. y = - x?
E. y = - x

Mathematics