Write the expression in the standard form a + bi.If z = 2 - 5i, evaluate z
.
A. 4 - 25i
B. -21
C. 29
D. 4 - 25i2
Answer: C
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Determine whether the given function is one-to-one. If so, find a formula for the inverse.f(x) = 
A. f-1(x) = 
B. Not a one-to-one function
C. f-1(x) = 
D. f-1(x) = 
Solve.The speeds of pulleys are inversely proportional to the lengths of their diameters. The diameter of pulley A is 18 cm and the diameter of pulley B is 8 cm. If pulley B turns at 342 rpm's, how fast does pulley A turn?
A. 749.3 rpm's B. 769.5 rpm's C. 152 rpm's D. 174 rpm's
Name the quadrilateral using every classification that applies.
A. kite B. rhombus, parallelogram C. rectangle, parallelogram D. trapezoid
Find the x-intercept and y-intercept of the function.f(x) = 3
A. x-intercept: (3, 0) y-intercept: (0, 3) B. x-intercept: (0, 3) y-intercept: (3, 0) C. x-intercept: none y-intercept: (0, 3) D. x-intercept: (3, 0) y-intercept: none