The sum of three consecutive integers is 81. What are the integers?
?
A. 78, 79, 80
B. 27, 28, 29
C. 25, 27, 29
D. 26, 27, 28
E. 81, 0, 0
Answer: D
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State the degree and leading coefficient of the polynomial function.f(x) = 14x4 + 3x3 - 5
A. Degree: 8; leading coefficient: 14 B. Degree: 7; leading coefficient: 14 C. Degree: 4; leading coefficient: 14 D. Degree: 14; leading coefficient: 4
Use the x-intercepts to find the intervals on which the graph of f is above and below the x-axis.f(x) = (x + 2)3
A. above the x-axis: (-?, -2) below the x-axis: (-2, ?) B. above the x-axis: (-2, ?) below the x-axis: (-?, -2) C. above the x-axis: no intervals below the x-axis: (-?, -2), (-2, ?) D. above the x-axis: (-?, -2), (-2, ?) below the x-axis: no intervals
Solve and graph. Write the solution in interval notation.4
+ 3 < 22
A. 
B. 
C. 
D. 
Write the linear system as a matrix equation in the form AX = B, where A is the coefficient matrix and B is the constant matrix. 4x + 9y= 5 2y= 2
A. 
= 
B. 
= 
C. 
= 
D. 
= 