Find the angle 
between the vectors. Round your answer to two decimal places.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Solve the problem.How many monthly payments of $139.44 are necessary to pay off a 
loan if the 
interest rate is 
?
A. 30 payments B. 40 payments C. 36 payments D. None of the above is correct.
Mathematics
Solve the equation involving fractions.
+ 
= 5
A. - 
, 10
B. 2, 10
C. - 
, -10
D. 
, -10
Mathematics
Approximate the area under the curve and above the x-axis using n rectangles. Let the height of each rectangle be given by the value of the function at the right side of the rectangle.y = x2 from x = 0 to x = 4; n = 4
A. 27 B. 33 C. 36 D. 30
Mathematics
Determine if the series converges or diverges. If the series converges, find its sum.
A. converges; 
+ 
B. converges; 
+ 
C. converges; 
+ 
D. diverges
Mathematics