Write the expression in the standard form a + bi.(-5 + 4i)(5 + i)

A. -29 + 15i
B. -29 - 25i
C. -21 - 25i
D. -21 + 15i


Answer: A

Mathematics

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The following question(s) refer to a fractal defined by the recursive procedure :What is the length of the figure in step 2 of the construction?

A. 6 + 4
B. 2(3 +)/5
C.
D. 2 × 
E. none of these

Mathematics

From the graph of the parabola, determine whether the parabola opens upward or downward, and find the vertex, axis of symmetry, and range of the function. Find the maximum or minimum value of the function and the intervals on which the function is increasing or decreasing.

A. Up, (-1, -1), x = -1, [-1, ?), min -3, dec (-?, -1), inc (-1, ?) B. Up, (-1, -1), x = -1, [-1, ?), min -1, dec (-?, -1], inc [-1, ?) C. Up, (-1, -1), x = -1, [-3, 1], min -3, dec (-?, -1], inc [-1, ?) D. Up, (-1, -1), x = -1, [-1, ?), min -1, inc (-?, -1], dec [-1, ?)

Mathematics

Write the first four terms of the sequence.an = 

A. - , - 
B. , - , - 
C. - , - 
D. , - , - 

Mathematics

Provide an appropriate response.Write the equation of the line with slope -  and y-intercept (0, 8). Write the answer in slope-intercept form.

A. y = x + 8
B. y = - x + 8
C. y = x - 8
D. y = - x - 8

Mathematics