Write sigma notation. +  +  +   +   

A.
B.
C.
D.


Answer: D

Mathematics

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Given that f(x) = sin x, g(x) = cos x, and h(x) = tan x, evaluate the given function. The point (x, ), on the circle , also lies on the terminal side of an angle ? in quadrant II. The point , on the circle , also lies on the terminal side of an angle ? in quadrant III.g

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A. - 
B.
C.
D.  

Mathematics

Assume that the sequence is defined recursively. Find the first four terms of the sequence. ? ? Please enter your answer as four numbers in order, separated by commas.

What will be an ideal response?

Mathematics

Find the linear equation that meets the stated criteria.The linear equation y = 435x + 3420 provides an approximation of the annual cost (in dollars) of health insurance for a family of three, where  represents 1984,  represents 1985, and so on. Write an equation that yields the same y-values when the exact year number is entered.

A. y = 435(1983 - x) + 3420 B. y = 435(x - 1984) + 3420 C. y = 435(x - 1983) + 3420 D. y = 435(1984 - x) + 3420

Mathematics

Use this graph to answer each question.  Big "D" Sales  1989-1990   MonthWhat were the total sales for 1989?

A. $764,000 B. $48,000 C. $582,000 D. $50,000

Mathematics