Solve the problem.Use synthetic division to divide f(x) = x3 + 12x2 + 41x + 30 by x + 5. Use the result to find all zeros of f.
A. {-5, -6, -1}
B. {5, 6, 1}
C. {-5 , 6, 1}
D. {5, -6, -1}
Answer: A
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Solve the problem using Gaussian elimination.The voltage across an electric resistor equals the current (in A) times the resistance (in ?). If a current of passes through each of two resistors, the sum of the voltages is 18. If
passes through the first resistor and
passes through the second resistor, the sum of the voltages is 66 V. Find the resistances.
A. resistance 1 = 7 ? and resistance 2 = 2 ? B. resistance 1 = 7 ? and resistance 2 = 7 ? C. resistance 1 = 2 ? and resistance 2 = 2 ? D. resistance 1 = 2 ? and resistance 2 = 7 ?
Find the distance d(A, B) between the points A and B.A = (-3, -4); B = (3, -6)
A. 32
B. 2
C. 8
D. 32
Solve the rational inequality. Write the solution in interval notation. < 3
A.
B. (-?, 6) ?
C. (-4, 6)
D. ?
The median salary of the 1,788 teachers in a large public school district is $39,300. If the 69th percentile of the salaries is $46,800, find the percent of teachers whose salary is between $39,300 and $46,800.
a. 69% b. 19% c. 81% d. 31%