Write a general formula to describe the variation.The illumination I produced on a surface by a source of light varies directly as the candlepower c of the source and inversely as the square of the distance d between the source and the surface.

A. I = 
B. I = 
C. I = 
D. I = kcd2


Answer: B

Mathematics

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The function s = f(t) gives the position of a body moving on a coordinate line, with s in meters and t in seconds.s = - t3 + 2t2 - 2t, 0 ? t ? 2Find the body's speed and acceleration at the end of the time interval.

A. 6 m/sec, -8 m/sec2 B. -6 m/sec, -8 m/sec2 C. 2 m/sec, 0 m/sec2 D. 6 m/sec, -2 m/sec2

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Provide an appropriate response. Which is the proper notation to present the angle indicated by the intersection of  and ?

A. ?ABCD B. ?B C. ?BAD D. ?ABD

Mathematics

Solve the equation. -  = 

A. {13} B. {8} C. {-8} D. {32}

Mathematics

Provide an appropriate response.Find the slope of the linear function f(t) = .

Fill in the blank(s) with the appropriate word(s).

Mathematics