Factor out a factor with a negative coefficient.-25u4 + 15u3 - 10u
A. -5u4(5 - 3 + 2)
B. -5u(5u3 - 3u2 + 2)
C. 5u(5u3 + 3u2 - 2)
D. None of these
Answer: B
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Solve the problem.Find a unit vector perpendicular to plane PQR determined by the points P(-3, 1, 4), 
and 
A. ± 
B. ± 
C. ± 
D. ± 
Provide an appropriate response.Willie went Christmas shopping. He spent $75, $93.59, $10.99, $5.59, $22.96, and $6.69. He rounded the values to whole numbers and wrote a check for the sum before he got to the register. Find the estimated sum and the actual sum, and decide if it was enough to cover the bill.
A. $201; bill was $214.82; no B. $216; bill was $214.82; no C. $223; bill was $214.82; yes D. $213; bill was $216.00; no
Solve the problem. If necessary, use notation such as 0.
, 0.
, or 0.
, unless otherwise stated. Convert to a decimal: On the last quiz in Matthew's biology class, 15 out of the 16 students got a B.
A. 0.93
B. 0.9
C. 0.937
D. 0.9375
Solve the equation. 
= 8.2
A. {7.49} B. {9.1} C. {7.38} D. {8.48}