Divide.
A. -25
B. 25
C. -35
D. 
Answer: B
Mathematics
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Find the specified vector or scalar.v = 7i + 2j; Find 4v.
A. 11i + 6j B. 28i + 8j C. 11i + 2j D. 28i + 2j
Mathematics
Solve.An earthquake was recorded with an intensity which was 
times more powerful than a reference level earthquake, or 
What is the magnitude of this earthquake on the Richter scale (rounded to the nearest tenth)? The magnitude on the Richter scale of an earthquake of intensity I is 
A. 3.5 B. 4.5 C. 0.5 D. 10.4
Mathematics
Factor completely.16x2 + 81
A. (4x - 9)2 B. prime C. (4x + 9)(4x - 9) D. (4x + 9)2
Mathematics
Factor the four-term polynomial by grouping.10x6 + 6x3 - 25x3 - 15
A. (2x3 + 5)(5x3 - 3) B. (10x3 + 5)(x3 - 3) C. (2x3 - 5)(5x3 + 3) D. (2x6 - 5)(5x + 3)
Mathematics