Write the partial fraction decomposition of the rational expression.
A. +
+
B. +
+
C. +
+
D. +
+
Answer: A
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Write the number in scientific notation.3.61248
A. 3.61248 x 101 B. 3.61248 x 10 C. 3.61248 x 10-1 D. 3.61248 x 100
Solve the problem.In a study of heat transfer in a grid of wires, the temperature at an exterior node is maintained at a constant value (in °F) as shown in the figure. When the grid is in thermal equilibrium, the temperature at an interior node is the average of the temperatures at the four adjacent nodes. For instance Find the temperatures T1, T2, and T3 when the grid is in thermal equilibrium.
108°180°
A. T1 = , T2 =
, T3 =
B. T1 = , T2 =
, T3 =
C. T1 = , T2 =
, T3 =
D. T1 = , T2 =
, T3 = 105
Given f(x) and g(x), find the indicated composition.f(x) = x2 - 5; g(x) = 3x + 3Find (f ? g)(x).
A. (f ? g)(x) = 9x2 + 18x + 9 B. (f ? g)(x) = 9x2 + 9x + 4 C. (f ? g)(x) = 3x2 - 12 D. (f ? g)(x) = 9x2 + 18x + 4
Solve.(7x - 5)(7x - 3) = 0
A. ,
B. ,
C. - , -
D. ,