Write the expression in the standard form a + bi.Given z = 3 + 9i and w = -8 + i, evaluate 
.
A. 11 + 8i
B. 11 - 8i
C. -5 + 10i
D. -11 - 8i
Answer: B
Mathematics
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Write the equation in standard form. Then identify the vertex of the parabola.y = x2 - 8x + 5
A. y = (x - 4)2+ 5; (-4, 5) B. y = (x - 4)2 - 11; (4, -11) C. y = (x + 4)2 - 11; (-4, -11) D. y = (x - 4)2 + 5; (4, 5)
Mathematics
Determine whether the statement is true or false.-19 > -14
A. False B. True
Mathematics
Graphically estimate the x- and y-intercepts of the graph.
?
?
A. x-intercept: (±3, 0)y-intercept: (0, 81) B. x-intercept: (3, 0)y-intercept: (0, 81) C. x-intercept: (-3, 0)y-intercept: (0, 81) D. x-intercept: (±3, 0)y-intercept: (0, 9) E. x-intercept: (0, 3)y-intercept: (0, 81)
Mathematics
Use a determinant and the given vertices of a triangle to find the area of the triangle.
?
?
A. ?
B. 4
C. ?
D. 
E. 7
Mathematics