Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.(a + 1) + (a + d) + (a + d2) + . . . + (a + dn)
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Translate the sentence to an equation.A number divided by 9.4 is equal to -14.4.
A. -14.4x = 9.4
B. 
= -14.4
C. 9.4x = -14.4
D. 
= 9.4
Mathematics
Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(5x - 12)(3x - 6)
A. 8x2 - 66x - 66 B. 15x2 - 66x + 72 C. 8x2 - 66x + 72 D. 15x2 - 66x - 66
Mathematics
Solve the problem.The length of the diagonal of a rectangle is given by 
where L and W are the length and width of the rectangle. What is the length of the diagonal, D, of a rectangle that is 72 inches long and 39 inches wide? Round your answer to the nearest tenth of an inch, if necessary.
A. 81.9 in. B. 53 in. C. 10.5 in. D. 60.5 in.
Mathematics
Find the LCM.12, 18
A. 18 B. 216 C. 30 D. 36
Mathematics