Provide an appropriate response.Light with a wavelength of 0.0009 meters is in the infrared portion of the electromagnetic spectrum. Write 0.0009 in scientific notation.
A. 9 × 10-5
B. 9 × 10-3
C. 9 × 104
D. 9 × 10-4
Answer: D
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Find the mean. Round to the nearest tenth unless otherwise stated.Average number of defects: 8.0, 8.2, 8.8, 7.5, 8.3, 8.0, 8.7, 8.8, 7.1, 8.0, 7.5, 7.7, 7.5, 8.2, 8.2, 6.9, 8.3, 8.7
A. 8.3 B. 7.6 C. 8.0 D. 8.5
Change to a percent.
A. 
%
B. 33
%
C. 3
%
D. 
%
Solve.The strawberry yield (in bushels per acre) for a farm in Springfield from 1996 through 1998 is given by the equation 
In this equation, x = 0 represents the year 1997. Assume this trend continues and predict the year in which the Springfield farm's strawberry yield will be 180 bushels per acre.
A. 2002 B. 2005 C. 2003 D. 2004
Find the x- and y-intercepts of f.f(x) = (x + 8)2
A. x-intercept: -8; y-intercept: 0 B. x-intercept: -8; y-intercept: 64 C. x-intercept: 8; y-intercept: 0 D. x-intercept: 8; y-intercept: 64