Factor when possible. If the polynomial is prime, say so.x2 + 14x + 15
A. (x + 15)(x - 1)
B. (x - 5)(x + 3)
C. (x + 5)(x - 3)
D. prime
Answer: D
Mathematics
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Use the change of base formula and a calculator to approximate the logarithmic expression. Round your answer to four decimal places.log325
A. 0.3476 B. 1.1093 C. 3.2261 D. 2.9299
Mathematics
Solve the equation.
- 8 = 0
A. {8}
B. 
C. {64}
D. ?
Mathematics
Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
?
A. x = 
, y = -2, z = 0, w = 
; 
B. x = 1, y = -2, z = 0, w = 3; (1, -2, 0, 3)
C. x = -1, y = - 
, z = 0, w = 
; 
D. x = 
, y = - 
, z = 0, w = 
; 
Mathematics
If welding rods cost $59 per 50 lb, how much would it cost for 90 lb?
A. $111.20 B. $106.20 C. $104.20 D. $113.70 E. $102.70
Mathematics