Multiply.(x - 7)(-4x + 3)
A. -4x2 + 31x + 31
B. -4x2 - 21x + 31
C. -4x2 + 31x - 21
D. -4x2 + 29x - 21
Answer: C
Mathematics
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Solve the problem. Round to the nearest cent.An invoice for a laptop computer that cost $479.37 is dated September 11, with sales terms of 2/9 EOM. If the bill is paid October 7, find the cash discount and net amount paid.
A. Cash discount: $0; net amount: $479.37 B. Cash discount: $9.39; net amount: $468.37 C. Cash discount: $9.59; net amount: $ $469.78 D. Cash discount: $43.14; net amount: $436.23
Mathematics
Find the sum.-12 - 4 - 
- 
- . . .
A. - 
B. 6
C. - 18
D. Does not exist
Mathematics
Complete.0.567 mcg = 
mg
A. 567 B. 0.00567 C. 56.7 D. 0.000567
Mathematics
Express the given vector as a linear combination of the unit vectors i and j.s = 
A. 7i + 8j B. 8i - 7j C. -8i - 7j D. -7i - 8j
Mathematics