Write the phrase as a variable expression. Use x to represent "a number."The sum of a number and 138
A. x + 138
B. 138 - x
C. 138x
D. 138
Answer: A
Mathematics
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Use the integral test to determine the convergence or divergence of the series.
A. Converges B. Diverges
Mathematics
Solve the problem.How much work does it take to slide a box 25 meters along the ground by pulling it with a 158 N force at an angle of 45° from the horizontal?
A. 3,950
joules
B. 
joules
C. 1,975
joules
D. 3,950 joules
Mathematics
Perform the indicated row operations on the following matrix. 
(-2)R1 + R2 ? R2
A. 
B. 
C. 
D. 
Mathematics
Factor out the greatest common factor.72x8y9 - 54x6y6 + 45x4y3
A. no common factor B. 9(8x8y9 - 6x6y6 + 5x4y3) C. 9x4y3(8x4y6 - 6x2y3 + 5) D. 9x4(8x4y9 - 6x2y6 + 5y3)
Mathematics