Add or subtract as indicated.(3a - 2b - c) - (-8b - 5c - 7d)
A. 3a + 6b + 4c + 7d
B. 3a + 6b + 6c + 7d
C. 3a + 6b + 4c - 7d
D. 3a + 6b - 4c - 7d
Answer: A
Mathematics
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Use the following table of values to estimate the value of 
at 
. Round your answer to two decimal places.
?
x 1.6 3.7 7.2 11.8
6.6 12.4 21.5 32.6?
A. 2.60
B. 9.10
C. 0.00
D. None of the above
Mathematics
Provide an appropriate response.z varies directly as the square of x and inversely as y. Find z when x = 9, y = 15, and the constant of combined variation is 20.
A. 6.75 B. 240 C. 101.25 D. 108
Mathematics
Find the number of terms in the sequence or the sum of the sequence as requested.Find the following sum: 5 + 7 + 9 + . . . + 103
A. 2710 B. 2705 C. 2700 D. 2690
Mathematics
Expand, where i2 = -1.
4
A. 1 - i B. -1 C. 1 D. 1 + i
Mathematics